Friday, June 19, 2015

Lit Bits: June 19, 2015

From the recent medical literature...

1. The Safety and Effectiveness of Droperidol for Sedation of Acute Behavioral Disturbance in the ED.

Calver L, et al. Ann Emerg Med. 2015 Apr 11 [Epub ahead of print]

STUDY OBJECTIVE: We investigate the safety and effectiveness of droperidol for sedation of acute behavioral disturbance in the emergency department (ED).

METHODS: This was a prospective observational study in 6 EDs (August 2009 to April 2013). Adult patients requiring parenteral sedation for acute behavioral disturbance received droperidol 10 mg. If this did not sedate the patient within 15 minutes, further sedation was allowed but droperidol 10 mg was recommended as part of a sedation protocol. The primary outcome was the proportion of patients with an abnormal QT interval, defined by the at-risk line on the QT nomogram. Secondary outcomes were effectiveness determined by the time to sedation measured on the Sedation Assessment Tool, use of additional sedation, adverse events, and injury to staff or patients.

RESULTS: There were 1,009 patients with an ECG performed within 2 hours of droperidol administration, with a median dose of 10 mg (interquartile range [IQR]10 to 17.5 mg). Thirteen of the 1,009 patients had an abnormal QT (1.3%; 95% confidence interval 0.7% to 2.3%), but 7 of these had another cause attributed for prolonged QT (methadone, escitalopram, amiodarone, or preexisting). In 1,403 patients sedated with a median total dose of droperidol of 10 mg (IQR 10 to 20 mg), the median time to sedation was 20 minutes (IQR 10 to 30 minutes) and 97% were sedated within 120 minutes. Additional sedation was required for 435 patients (31.0%; 95% confidence interval 28.6% to 33.5%). Adverse events occurred in 70 patients (5%) and oversedation without complications in 109 (8%), the latter more common for patients receiving benzodiazepines as additional sedation (16/109 [15%]). There were no cases of torsades de pointes. Injuries occurred in 34 staff members and 4 patients.

CONCLUSION: The study supports the use of high-dose droperidol as a safe sedating agent for patients with acute behavioral disturbance in the ED. There is no evidence of increased risk for QT prolongation with the doses used in this study.

2. The Circus Comes to the ED

Baer N. JAMA Intern Med. 2015;175(6):883-884.

This Viewpoint discusses why the presence of reality television cameras in the ED inevitably conflicts with good patient care.

Television cameras have been in the emergency department (ED) ever since ABC News began airing a series of documentaries, such as Boston Med and NY Med, depicting the high-pitched life-and-death drama of saving lives in the ED. Renowned hospitals such as Johns Hopkins, New York–Presbyterian, Brigham and Women’s, Massachusetts General, and Boston Medical Center have welcomed camera crews into their EDs to present the wrenching decisions that physicians and their patients and families must make at the most critical times in their lives.1,2

That makes for great television.

I know. I was a writer and producer on the hit television series ER for its first 7 seasons. We strove to tell emotional stories that we hoped would captivate the audience and, as an added bonus, educate them about disease processes and prevention. But at the end of a shooting day, it was still only make-believe. No one was really hit by a car or a bullet; no life-or-death decisions had to be made in an instant; and no one’s personal tragedy was hung out for all to see.

But the stories on ABC News are not make-believe. They are real. And that is their selling point. But are they truly as “real” as the producers tout them to be?

I am also a documentary filmmaker. I know that the times when I decide to turn on the camera, what I choose to edit in or out, and my very presence filming the subjects all affect the outcome of the film. I look for dramatic moments, and I have found that I encourage them in the questions I ask or in the people I choose to film. Those subjects need to be charismatic to hold the audience’s attention. So it is no surprise, then, that NY Med, a reality medical show produced by ABC, promotes one of the young trauma surgeons as “Dr McDreamy–like” as a nod to its dramatic series, Grey’s Anatomy.

Therein lies the rub. Of course ABC would choose a Dr McDreamy–like surgeon from among all the surgeons at New York–Presbyterian, just as we cast George Clooney on ER to be a pediatrician the viewers would swoon over. It makes for good television. What else makes for good reality television? Dramatic moments. The executive producer of the ABC series echoed this view when he told Capital New York that his goal is to give the viewer “the ‘goodbye’ moment… where a family says goodbye to their loved one going into surgery[. I]f you don’t capture that moment, because a nurse shut the door on your camera’s face, you kill that piece.”3

The point here is that these reality medical series are much like the dramas that I wrote on ER. They are constructed—in their case from thousands of hours of footage, with telegenic physicians taking the viewer through the minefield of the decisions, elations, and tragedies only the ED can provide. I cannot say whether the presence of the camera crew had any impact on the decisions that these physicians made, but I do know that it does affect the participants’ behavior in terms of wanting to look competent and caring. We are human beings. We care about how we are being seen. And we may question our decisions, hesitate or refrain from being who we really are as physicians when the camera is recording our every move.

This raises a broader question. Can filming be done in a manner that does not impinge on a physician’s duty to the patient? Reality television producers will argue affirmatively that as long as informed consent is in place everything is fine.

But can a patient and family truly give consent when they are likely at their most vulnerable? Might they consent only because they do not want to alienate the physicians who are caring for them? Finally, does the benefit to the patient outweigh any possible harm that might come from filming? It is hard to see what benefit comes to a patient when his or her most personal problems are displayed on the television screen.

Reality television producers also argue, and their sentiments are echoed by the chief executive officers of these hospitals, that these shows are educational and therefore that makes them above criticism. Indeed they are educational—no doubt viewers learn a great deal about critical care—but does that make them ethical? Even though the ABC News programs are produced under the news division, they must emotionally resonate with the audience. News shows, too, must deliver ratings; otherwise advertisers will withhold their dollars—which is why the producers look for those “goodbye moments,” which arguably may be in conflict with what is best for the patient.

Am I saying, then, that reality television crews should never be allowed into the ED? Yes. The bottom line is that television journalists and physicians have different agendas. The agenda of television journalists is to tell compelling and dramatic stories; to find the most telegenic physicians; to capture all the messy conflict in the life-and-death decisions being made around the clock. Their agenda conflicts baldly with our duty to our patients. Despite what the executive producer of NY Med claimed, that “[i]n no way will your care be affected one way or another”4 by the presence of camera crews, it cannot possibly be true because the goal of the television journalist is in direct conflict with the duty of the physician to the patient.…

The remainder of the essay (subscription required): http://archinte.jamanetwork.com/article.aspx?articleid=2276927

3. Absence of clinical findings reliably excludes unstable cervical spine injuries in children 5 years or younger.

Hale DF, et al. J Trauma Acute Care Surg. 2015 May;78(5):943-8.

BACKGROUND: Increased accessibility and rapidity of computed tomography (CT) have led to increased use and radiation exposure to pediatric trauma patients. The thyroid is radiosensitive and therefore at risk for developing malignancy from radiation exposure during cervical spine CT. This analysis aimed to determine which preelementary trauma patients warrant cervical spine CT by defining incidence and clinical characteristics of preelementary cervical spine injury.

METHODS: This was a retrospective review of pre-elementary trauma patients from 1998 to 2010 with cervical spine injury admitted to a Level I trauma center. Patients were identified from the trauma registry using DRG International Classification of Diseases-9th Rev. codes and reviewed for demographics, mechanism of injury, clinical presentation, injury location, injury type, treatment, and outcome.

RESULTS: A total of 2,972 preelementary trauma patients were identified. Twenty-two (0.74%) had confirmed cervical spine injuries. Eleven (50%) were boys, and the mean (SD) age was 3 (1.7) years. The most common mechanism of injury was motor vehicle collision (n = 16, 73%). The majority (59%) were in extremis, and 12 (55%) arrived intubated. The median Glasgow Coma Scale (GCS) score was 3 (interquartile range, 3-10); the median Injury Severity Score (ISS) was 33 (interquartile range, 17-56). Nineteen injuries (76%) were at the level of C4 level and higher. The mortality rate was 50%. All patients had clinical findings suggestive of or diagnostic for cervical spine injury; 18 (82%) had abnormal neurologic examination result, 2 (9%) had torticollis, and 2 (9%) had neck pain.

CONCLUSION: The incidence of cervical spine injury in preelementary patients was consistent with previous reports. Missing a cervical spine injury in asymptomatic preelementary patients is extremely low. Reserving cervical spine CT to symptomatic preelementary patients would decrease unnecessary radiation exposure to the thyroid.

Ryan Radecki comments
The Very Young Pediatric C-Spine Rarely Needs Radiologic Clearance

It is usually reasonable to exercise an abundance of caution with trauma patients suspected of having cervical spine injuries.  However, an abundance of caution sometimes means an abundance of radiation – and the costs and harms associated with such testing can be immense, regardless of technical difficulty in a young pediatric population.

This is a retrospective evaluation of 2,972 trauma patients aged less than 5 years, reviewing specifically the overall incidence of diagnosed cervical spine injury.  In this 12 year cohort, a grand total of 22 had confirmed CSI.  Most importantly, however, nearly all cases of CSI were associated with other serious injuries – a cohort with a median ISS of 33.  Twelve of 22 arrived intubated, 13 were in extremis, and overall mortality was 50%.  All evaluable patients had either neurologic deficits, severe neck pain, or were unable to range their neck.

These authors do not further describe their cohort for evaluation with regard to developing a predictive instrument for cervical spine injury, but these data do support a very reasonable conclusion regarding the rarity of pediatric injuries – and the near impossibility of isolated cervical spine injuries.  I tend to agree with the authors’ stated management strategy for such patients:

"Pediatric patients with abnormal neurologic examination result, decreased mental status, neck pain, or torticollis are evaluated with cervical spine CT; however if the child is asymptomatic defined by a normal neurologic examination result, appropriate mental status, with absence of neck pain or torticollis, our first step is to remove the cervical collar. We examine the patient for cervical tenderness if they are able to communicate and observe the child for normal range of motion of the neck. In preverbal patients, we simply observe neck range of motion with the collar removed. If the child seems to move his or her neck without discomfort and full range of motion, then we do not pursue any further radiologic evaluation."

4. Antibiotic Therapy vs Appendectomy for Treatment of Uncomplicated Acute Appendicitis

Salminen P, et al. JAMA. 2015 Jun 16;313(23):2340-8.

IMPORTANCE: An increasing amount of evidence supports the use of antibiotics instead of surgery for treating patients with uncomplicated acute appendicitis.

OBJECTIVE: To compare antibiotic therapy with appendectomy in the treatment of uncomplicated acute appendicitis confirmed by computed tomography (CT).

DESIGN, SETTING, AND PARTICIPANTS: The Appendicitis Acuta (APPAC) multicenter, open-label, noninferiority randomized clinical trial was conducted from November 2009 until June 2012 in Finland. The trial enrolled 530 patients aged 18 to 60 years with uncomplicated acute appendicitis confirmed by a CT scan. Patients were randomly assigned to early appendectomy or antibiotic treatment with a 1-year follow-up period.

INTERVENTIONS: Patients randomized to antibiotic therapy received intravenous ertapenem (1 g/d) for 3 days followed by 7 days of oral levofloxacin (500 mg once daily) and metronidazole (500 mg 3 times per day). Patients randomized to the surgical treatment group were assigned to undergo standard open appendectomy.

MAIN OUTCOMES AND MEASURES: The primary end point for the surgical intervention was the successful completion of an appendectomy. The primary end point for antibiotic-treated patients was discharge from the hospital without the need for surgery and no recurrent appendicitis during a 1-year follow-up period.

RESULTS: There were 273 patients in the surgical group and 257 in the antibiotic group. Of 273 patients in the surgical group, all but 1 underwent successful appendectomy, resulting in a success rate of 99.6% (95% CI, 98.0% to 100.0%). In the antibiotic group, 70 patients (27.3%; 95% CI, 22.0% to 33.2%) underwent appendectomy within 1 year of initial presentation for appendicitis. Of the 256 patients available for follow-up in the antibiotic group, 186 (72.7%; 95% CI, 66.8% to 78.0%) did not require surgery. The intention-to-treat analysis yielded a difference in treatment efficacy between groups of -27.0% (95% CI, -31.6% to ∞) (P = .89). Given the prespecified noninferiority margin of 24%, we were unable to demonstrate noninferiority of antibiotic treatment relative to surgery. Of the 70 patients randomized to antibiotic treatment who subsequently underwent appendectomy, 58 (82.9%; 95% CI, 72.0% to 90.8%) had uncomplicated appendicitis, 7 (10.0%; 95% CI, 4.1% to 19.5%) had complicated acute appendicitis, and 5 (7.1%; 95% CI, 2.4% to 15.9%) did not have appendicitis but received appendectomy for suspected recurrence. There were no intra-abdominal abscesses or other major complications associated with delayed appendectomy in patients randomized to antibiotic treatment.

CONCLUSIONS AND RELEVANCE: Among patients with CT-proven, uncomplicated appendicitis, antibiotic treatment did not meet the prespecified criterion for noninferiority compared with appendectomy. Most patients randomized to antibiotic treatment for uncomplicated appendicitis did not require appendectomy during the 1-year follow-up period, and those who required appendectomy did not experience significant complications.

Editorial (excerpt)
The majority (73%) of the 257 patients initially treated with antibiotics did not require surgery during the 1-year follow-up period. Of those who did undergo surgery, none had major complications attributable to receiving antibiotics before surgery—dispelling the notion that appendectomy is necessarily an emergency. These findings suggest that for CT-diagnosed uncomplicated appendicitis, an initial trial of antibiotics is reasonable followed by elective appendectomy for patients who do not improve with antibiotics or present with recurrent appendicitis.

As with any study, it is important to understand the patients for whom these findings do not apply. Patients with complicated appendicitis, children, and pregnant women were excluded from this study so the results do not apply to these groups. Because appendicoliths are associated with treatment failure when appendicitis is managed with antibiotics,5 Salminen et al4 excluded patients whose CT scans showed an appendicolith to be present. Thus, the report by Salminen et al4 does provide good evidence that antibiotics may be a reasonable alternative to appendectomy for patients with acute, CT-verified uncomplicated appendicitis.

The study by Salminen et al has several limitations and more research is needed. When future trials are designed of surgery compared with antibiotic treatment of appendicitis, careful consideration of the study design and definition of what represents a clinically important difference needs to be carefully considered. Salminen et al designed their trial as a noninferiority study. Because appendectomy is the commonly accepted treatment for appendicitis, the investigators needed to show that an alternative treatment not involving surgery would not be worse than the currently accepted treatments by some margin. This margin, the minimal clinically important difference, was established somewhat arbitrarily by Salminen et al because little clinical information was available to provide a better estimate for it.

Future studies should be carefully designed with a strong justification for the minimal clinically important difference. Antibiotics with broad enough coverage to treat appendicitis may cause the development of resistant organisms or Clostridium difficile infections. Given the balance between potential complications of antibiotic treatment or appendectomy for appendicitis, is 10% of patients with appendicitis not experiencing successful treatment with antibiotics clinically important? 30%? 50%? Investigators will need to determine and fully justify how much worse than appendectomy antibiotic treatment of appendicitis must be before the notion of replacing appendectomy with antibiotic treatment is rejected.

Because appendectomy is performed to prevent major pelvic infection, the strongest design would be one showing that antibiotics could prevent pelvic abscesses as effectively as surgery. However, because pelvic abscess is infrequent, a trial using this outcome would need to enroll a very large number of patients.

The time has come to consider abandoning routine appendectomy for patients with uncomplicated appendicitis. The operation served patients well for more than 100 years. With development of more precise diagnostic capabilities like CT and effective broad-spectrum antibiotics, appendectomy may be unnecessary for uncomplicated appendicitis, which now occurs in the majority of acute appendicitis cases.

5. Assessing Current Practices in the Evaluation and Treatment of Acute Sinusitis: A Comparison of Primary Care, Urgent Care and ED Care.

Sharp AL, et al. J Patient-Centered Res Rev. 2015;2:136..

Background/Aims: Acute sinusitis (AS) affects 1 in 7 adults and costs over $5.8 billion annually. As part of the American Board of Internal Medicine’s Choosing Wisely campaign, three organizations make recommendations regarding appropriate sinus imaging and antibiotics for uncomplicated AS. The extent to which AS recommendations are followed is unknown; our aim is to measure adherence with recommendations for AS and to compare AS encounters in primary care (PC), urgent care (UC) and emergency (ED) departments.

Methods: A retrospective, observational study of AS care using structured data from electronic health records, complemented by more extensive chart review in a smaller subsample of encounters. All immunocompetent adults with an initial AS encounter (ICD-9 code 461.x) from 2010 to 2012 were included. Primary outcomes (structured data) were filled antibiotic prescriptions and the performance of a face, head or sinus computerized tomography (CT) scan, and secondary outcomes (chart review) were length of symptoms and adherence to AS recommendations.

Results: The median age of patients was 46 (interquartile range: 34–58), 67.5% were female and the mean Elixhauser comorbidity score was 1.5 (±1.6 standard deviation). Of 152,774 AS encounters (77% PC, 22% UC and 1% ED), 89.2% resulted in a filled antibiotic prescription and 1.1% in a CT scan. Compared with the PC setting, UC encounters were more likely to result in antibiotics (adjusted odds ratio [OR]: 1.12, 95% confidence interval [CI]: 1.08–1.17) or obtaining a CT scan (adjusted OR: 2.4, 95% CI: 2.1–2.7, and ED encounters were less likely to result in antibiotics (adjusted OR: 0.57, 95% CI: 0.50–0.65) but more likely to result in a CT scan (adjusted OR: 59.4, 95% CI: 51.3–68.7). Chart review of 300 encounters resulting in antibiotics determined that 50% were for symptoms ≤ 7 days (95% CI: 41–58%) and 35% for symptoms ≥ 14 days (95% CI: 27–44%). Only 29% (95% CI: 22–36%) of encounters resulted in guideline adherent care (30% PC, 26% UC, 16% ED).

Discussion: Among adults with AS in a large, integrated health care system, CT imaging is infrequent but antibiotic treatment is common, even for uncomplicated cases with a short duration of symptoms.

6. More Evidence Supporting Endovascular Therapy for Eligible Pts with Acute Stroke

A. Editorial: Endovascular Therapy for Stroke — It's about Time

Furlan AJ, et al. N Engl J Med 2015; 372:2347-2349

Although many stroke centers worldwide have performed endovascular stroke therapy since the results of the Prolyse in Acute Cerebral Thromboembolism (PROACT) II trial were published in 1999,1 lingering uncertainties about efficacy and the selection of patients created an uneasy equipoise. Especially nettlesome was the uncertain benefit of endovascular therapy as compared with intravenous tissue plasminogen activator (t-PA). The controversy over endovascular therapy was heightened in 2013 when the results of the Interventional Management of Stroke (IMS) III,2 Mechanical Retrieval and Recanalization of Stroke Clots Using Embolectomy (MR RESCUE),3 and Local versus Systemic Thrombolysis for Acute Ischemic Stroke (SYNTHESIS Expansion)4 clinical trials suggested that endovascular therapy was no more effective than intravenous t-PA alone.

Now, in resounding fashion, five randomized clinical trials — the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands (MR CLEAN),5 the Extending the Time for Thrombolysis in Emergency Deficits — Intra-Arterial (EXTEND-IA) trial,6 the Endovascular Treatment for Small Core and Anterior Circulation Proximal Occlusion with Emphasis on Minimizing CT to Recanalization Times (ESCAPE) trial,7 the Solitaire with the Intention for Thrombectomy as Primary Endovascular Treatment (SWIFT PRIME) trial,8 and the Randomized Trial of Revascularization with Solitaire FR Device versus Best Medical Therapy in the Treatment of Acute Stroke Due to an Anterior Circulation Large Vessel Occlusion Presenting within Eight Hours of Symptom Onset (REVASCAT),9 the results of the latter two now being published in the Journal — have shown that endovascular therapy is highly beneficial, as compared with intravenous t-PA alone, in patients with occlusions of the intracranial internal carotid artery or middle cerebral artery up to 6 hours after stroke onset. The absolute benefit of endovascular therapy, as compared with intravenous t-PA alone, with regard to an outcome of functional independence at 90 days (defined as a modified Rankin scale score of ≤2, on a scale from 0 [no symptoms] to 6 [death]) ranged from 13.5 to 31 percentage points. This translates into a number needed to treat for benefit as low as three patients and no more than seven patients. There was no significant increase in the rate of symptomatic brain hemorrhage with endovascular therapy in any of the trials…

The rest of the editorial (subscription required): http://www.nejm.org/doi/full/10.1056/NEJMe1503217

B. Stent-Retriever Thrombectomy after Intravenous t-PA vs. t-PA Alone in Stroke

Saver JL, et al; SWIFT PRIME Investigators. N Engl J Med. 2015 Jun 11;372(24):2285-95.

BACKGROUND: Among patients with acute ischemic stroke due to occlusions in the proximal anterior intracranial circulation, less than 40% regain functional independence when treated with intravenous tissue plasminogen activator (t-PA) alone. Thrombectomy with the use of a stent retriever, in addition to intravenous t-PA, increases reperfusion rates and may improve long-term functional outcome.

METHODS: We randomly assigned eligible patients with stroke who were receiving or had received intravenous t-PA to continue with t-PA alone (control group) or to undergo endovascular thrombectomy with the use of a stent retriever within 6 hours after symptom onset (intervention group). Patients had confirmed occlusions in the proximal anterior intracranial circulation and an absence of large ischemic-core lesions. The primary outcome was the severity of global disability at 90 days, as assessed by means of the modified Rankin scale (with scores ranging from 0 [no symptoms] to 6 [death]).

RESULTS: The study was stopped early because of efficacy. At 39 centers, 196 patients underwent randomization (98 patients in each group). In the intervention group, the median time from qualifying imaging to groin puncture was 57 minutes, and the rate of substantial reperfusion at the end of the procedure was 88%. Thrombectomy with the stent retriever plus intravenous t-PA reduced disability at 90 days over the entire range of scores on the modified Rankin scale (P less than 0.001). The rate of functional independence (modified Rankin scale score, 0 to 2) was higher in the intervention group than in the control group (60% vs. 35%, P less than 0.001). There were no significant between-group differences in 90-day mortality (9% vs. 12%, P=0.50) or symptomatic intracranial hemorrhage (0% vs. 3%, P=0.12).

CONCLUSIONS: In patients receiving intravenous t-PA for acute ischemic stroke due to occlusions in the proximal anterior intracranial circulation, thrombectomy with a stent retriever within 6 hours after onset improved functional outcomes at 90 days. (Funded by Covidien; SWIFT PRIME ClinicalTrials.gov number, NCT01657461.).

C. Thrombectomy within 8 Hours after Symptom Onset in Ischemic Stroke

Jovin TG, et al. for the REVASCAT Trial Investigators. N Engl J Med 2015; 372:2296-2306

Background
We aimed to assess the safety and efficacy of thrombectomy for the treatment of stroke in a trial embedded within a population-based stroke reperfusion registry.

Methods
During a 2-year period at four centers in Catalonia, Spain, we randomly assigned 206 patients who could be treated within 8 hours after the onset of symptoms of acute ischemic stroke to receive either medical therapy (including intravenous alteplase when eligible) and endovascular therapy with the Solitaire stent retriever (thrombectomy group) or medical therapy alone (control group). All patients had confirmed proximal anterior circulation occlusion and the absence of a large infarct on neuroimaging. In all study patients, the use of alteplase either did not achieve revascularization or was contraindicated. The primary outcome was the severity of global disability at 90 days, as measured on the modified Rankin scale (ranging from 0 [no symptoms] to 6 [death]). Although the maximum planned sample size was 690, enrollment was halted early because of loss of equipoise after positive results for thrombectomy were reported from other similar trials.

Results
Thrombectomy reduced the severity of disability over the range of the modified Rankin scale (adjusted odds ratio for improvement of 1 point, 1.7; 95% confidence interval [CI], 1.05 to 2.8) and led to higher rates of functional independence (a score of 0 to 2) at 90 days (43.7% vs. 28.2%; adjusted odds ratio, 2.1; 95% CI, 1.1 to 4.0). At 90 days, the rates of symptomatic intracranial hemorrhage were 1.9% in both the thrombectomy group and the control group (P=1.00), and rates of death were 18.4% and 15.5%, respectively (P=0.60). Registry data indicated that only eight patients who met the eligibility criteria were treated outside the trial at participating hospitals.

Conclusions
Among patients with anterior circulation stroke who could be treated within 8 hours after symptom onset, stent retriever thrombectomy reduced the severity of post-stroke disability and increased the rate of functional independence.

7. ED management of AF/flutter and patient quality of life at one-month post-visit.

Ballard DW, et al. Ann Emerg Med. 2015 May 29 [Epub ahead of print].

Study objective: We identify characteristics of patients with atrial fibrillation or flutter associated with favorable assessments of emergency department (ED) effectiveness and 30-day quality of life.

Methods: As part of a prospective observational study of ED management and short-term outcomes of patients with nonvalvular atrial fibrillation or flutter, we adapted a disease-specific quality-of-life instrument. By telephone, we administered the Atrial Fibrillation Effect on Quality-of-life survey to patients 30 days after an ED visit in which they were treated for newly diagnosed or recent-onset atrial fibrillation or flutter and discharged home. We also asked respondents to rate the effectiveness of ED treatment. Using data prospectively collected in the ED and extracted from electronic health records, we recorded rhythm management (cardioversion attempts and type) and patient and ED treatment characteristics. Using multivariable regression, we examined the association between these characteristics and patient-reported effectiveness of ED treatment (“very effective” or not) and any atrial fibrillation or flutter quality-of-life effect.

Results: Six hundred fifty-two eligible ED patients (response rate 89%) treated between May 2011 and November 2012 completed follow-up. Of these patients, 454 (69.6%) reported that their ED treatment was “very effective” and 113 (17.3%) reported no quality-of-life influence. In multivariable analyses, there was an association between ED electrocardioversion and perceived ED effectiveness (P less than .05) but none between treatment strategy and 30-day atrial fibrillation or flutter quality-of-life score. Respondents who were younger, women, and had worse pre-ED self-reported health (P less than .05) were more likely to report a quality-of-life effect.

Conclusion: In this observational study, ED rhythm management strategy was associated with greater perceived effectiveness of the ED visit but not with a difference in 30-day quality-of-life score.

8. No Place to Call Home — Policies to Reduce ED Use in Medicaid

Friedman AB, et al. N Engl J Med 2015; 372:2382-2385

One goal of Medicaid expansion under the Affordable Care Act (ACA) is to provide low-income, medically vulnerable adults with a source of care outside the emergency department (ED) and the means to pay for that care. Yet Medicaid expansion alone may not reduce ED use among new enrollees. Although some research suggests that Medicaid coverage is associated with reduced ED use, a lottery-based, controlled study from Oregon found that newly enrolled beneficiaries actually increased their ED use, at least temporarily.1 This finding is not surprising, since health insurance reduces financial barriers to being seen promptly, and the newly enrolled Medicaid population has pent-up demand for care and a high burden of chronic disease. Although the contribution of ED use to cost growth is sometimes exaggerated, it remains a substantial source of health care costs, representing at least 5 to 6% of U.S. health expenditures.2 Medicaid alone spends $23 billion to $47 billion annually on ED care,2 and some of the sickest Medicaid enrollees are seen in the ED.

Broadly speaking, two approaches have been proposed for reducing use of the ED in this population. One focuses on making the ED more costly for patients to use; the other, on creating more robust alternatives to the ED. Although not incompatible, these approaches reflect different beliefs about why Medicaid beneficiaries use the ED for medical issues that could potentially be addressed elsewhere.

By imposing steep copayments for certain ED visits, the first approach aims to place responsibility on beneficiaries to make vigilant choices about when medical issues require emergency attention. For instance, as part of its ACA Medicaid expansion, Indiana was granted permission by the Centers for Medicare and Medicaid Services (CMS) to undertake a demonstration project involving charging Medicaid recipients — many of whom have family incomes below the federal poverty level — $8 for their first visit to the ED and $25 for subsequent visits during the same year. The copayment applies when the visit is determined to be for “nonemergency” care, the patient did not receive prior authorization from his or her managed-care organization, or the emergency provider informed the patient that the problem could be managed in another setting.

The logic behind increasing cost sharing for “nonemergency” ED visits is that it will motivate patients to use lower-cost care sites for most conditions, reserving the ED for times when they truly need immediate attention. This simple narrative, however, is challenged by research. States have had the option since 2005 of imposing copayments for Medicaid beneficiaries of up to $15 for nonemergency ED use, yet the eight states that implemented these programs saw no reduction in ED visits by Medicaid recipients relative to other states.3 Case studies of Medicaid cost sharing in other contexts similarly found that copayments alone do not reduce ED visits for diseases that can safely be treated in primary care settings. Analyses that have shown associations between copayments and reductions in “unnecessary” ED use are limited by their use of diagnosis or triage codes to determine retrospectively whether a visit qualifies as “nonurgent.”

One explanation for these findings is that even informed patients cannot necessarily translate their symptoms and history into a diagnosis, much less a prognosis. Patients present to the ED with symptoms that may signal an emergency, such as chest pain, and clinicians are able to rule out an emergency only after performing an evaluation and diagnostic tests. Indeed, 88% of all visits that are retrospectively determined to be for “nonemergency” (primary care treatable) diagnoses cannot be distinguished from true emergencies at the time of admission on the basis of the patient's chief complaint.4 It is neither ethical nor prudent for clinicians to withhold care until they can determine whether a case is an emergency — and at that point opportunities for cost savings through diversion from the ED would probably be minimal.

Instead of requiring Medicaid patients to pay for a portion of their ED care, some states are trying to provide them with better alternatives to the ED. This strategy requires that beneficiaries have access to a primary care provider who can help prevent exacerbations of chronic illnesses such as asthma that might otherwise lead to acute crises. Well-managed systems can also provide prompt appointments to patients with time-sensitive health concerns that are not necessarily emergencies — such as a persistent, moderate headache that does not get better with over-the-counter medications.

At the core of this alternative approach to reducing ED visits are key components of the patient-centered medical home model, including care coordination, case management, extended hours, and walk-in visits. Medical-home initiatives emphasize prevention and post-acute care, and preliminary studies have shown these models to be effective in reducing ED use among Medicaid beneficiaries.5 The ACA includes an optional program that gives states additional funding to support providers that develop “health homes” for Medicaid beneficiaries with multiple chronic physical conditions or severe mental illness. The program has been adopted by 16 states to date…

The remainder of the essay (subscription required): http://www.nejm.org/doi/full/10.1056/NEJMp1502627

9. Ondansetron in pregnancy is not associated with any risk of adverse fetal outcomes.

Pasternak B, et al. N Engl J Med. 2013;368(9):814-23.

[The results of this well-done study contradict those of the lower quality piece by Danielsson B, et al. in Repro Tox 2014: http://www.ncbi.nlm.nih.gov/pubmed/25450422]

BACKGROUND: Ondansetron is frequently used to treat nausea and vomiting during pregnancy, but the safety of this drug for the fetus has not been well studied.

METHODS: We investigated the risk of adverse fetal outcomes associated with ondansetron administered during pregnancy. From a historical cohort of 608,385 pregnancies in Denmark, women who were exposed to ondansetron and those who were not exposed were included, in a 1:4 ratio, in propensity-score-matched analyses of spontaneous abortion (1849 exposed women vs. 7396 unexposed women), stillbirth (1915 vs. 7660), any major birth defect (1233 vs. 4932), preterm delivery (1792 vs. 7168), and birth of infants at low birth weight and small for gestational age (1784 vs. 7136). In addition, estimates were adjusted for hospitalization for nausea and vomiting during pregnancy (as a proxy for severity) and the use of other antiemetics.

RESULTS: Receipt of ondansetron was not associated with a significantly increased risk of spontaneous abortion, which occurred in 1.1% of exposed women and 3.7% of unexposed women during gestational weeks 7 to 12 (hazard ratio, 0.49; 95% confidence interval [CI], 0.27 to 0.91) and in 1.0% and 2.1%, respectively, during weeks 13 to 22 (hazard ratio, 0.60; 95% CI, 0.29 to 1.21). Ondansetron also conferred no significantly increased risk of stillbirth (0.3% for exposed women and 0.4% for unexposed women; hazard ratio, 0.42; 95% CI, 0.10 to 1.73), any major birth defect (2.9% and 2.9%, respectively; prevalence odds ratio, 1.12; 95% CI, 0.69 to 1.82), preterm delivery (6.2% and 5.2%; prevalence odds ratio, 0.90; 95% CI, 0.66 to 1.25), delivery of a low-birth-weight infant (4.1% and 3.7%; prevalence odds ratio, 0.76; 95% CI, 0.51 to 1.13), or delivery of a small-for-gestational-age infant (10.4% and 9.2%; prevalence odds ratio, 1.13; 95% CI, 0.89 to 1.44).

CONCLUSIONS: Ondansetron taken during pregnancy was not associated with a significantly increased risk of adverse fetal outcomes.


10. ED Bounce Backs: A Multistate Analysis and a Single-center Patient Survey

A. Revisit rates and associated costs after an ED encounter: a multistate analysis.

Duseja R, et al. Ann Intern Med. 2015 Jun 2;162(11):750-6.

BACKGROUND: Return visits to the emergency department (ED) or hospital after an index ED visit strain the health system, but information about rates and determinants of revisits is limited.

OBJECTIVE: To describe revisit rates, variation in revisit rates by diagnosis and state, and associated costs.

DESIGN: Observational study using the Healthcare Cost and Utilization Project databases.

SETTING: 6 U.S. states.

PATIENTS: Adults with ED visits between 2006 and 2010.

MEASUREMENTS: Revisit rates and costs.

RESULTS: Within 3 days of an index ED visit, 8.2% of patients had a revisit; 32% of those revisits occurred at a different institution. Revisit rates varied by diagnosis, with skin infections having the highest rate (23.1% [95% CI, 22.3% to 23.9%]). Revisit rates also varied by state. For skin infections, Florida had higher risk-adjusted revisit rates (24.8% [CI, 23.5% to 26.2%]) than Nebraska (10.6% [CI, 9.2% to 12.1%]). In Florida, the only state with complete cost data, total revisit costs for the 19.8% of patients with a revisit within 30 days were 118% of total index ED visit costs for all patients (including those with and without a revisit).

LIMITATION: Whether a revisit reflects inadequate access to primary care, a planned revisit, the patient's nonadherence to ED recommendations, or poor-quality care at the initial ED visit remains unknown.

CONCLUSION: Revisits after an index ED encounter are more frequent than previously reported, in part because many occur outside the index institution. Among ED patients in Florida, more resources are spent on revisits than on index ED visits.

B. Emergency Department Bouncebacks: Is Lack of Primary Care Access the Primary Cause?

Moskovitz JB, et al. J Emerg Med. 2015;49:70-77.  

BACKGROUND: National emergency department (ED) bounceback rates within 30 days of previous ED discharge have been found to be as high as 26%. We hypothesize that having a primary care physician (PCP) would prevent bouncebacks to the ED because a patient would have a medical resource for follow-up and continued care.

METHODS: We performed a prospective, consecutive, anonymous survey study of adult ED patients at a suburban teaching hospital with 88,000 visits annually, from July 5, 2011 through August 8, 2011. Using chi-squared and Fisher's exact tests, we compared patients with an initial visit to those returning within 30 days of a previous visit to our ED.

RESULTS: We collected 1084 surveys. Those in the bounceback group were more likely to have no insurance (10.2% vs. 4.4%) or Medicaid (17.7% vs. 10.8%) and less likely to have a PCP (79% vs. 86%). Of those with a PCP, 9% in both groups had seen their PCP that day, 58% (initial visit) and 49% (bouncebacks) could have been seen that day, and 35% & 36%, respectively, within 1 week. Of those with a PCP, 38% of initial visits and 32% of bouncebacks stated they had already seen their physician at least once.

CONCLUSION: Our results suggest that patients who bounce back to the ED might have already contacted their PCP. Although insurance status and the lack thereof predict a higher likelihood to bounce back to the ED, many bouncebacks are insured patients with PCPs able to be seen the same day.

11. Syncope in the Pediatric ED – Can We Predict Cardiac Disease Based on History Alone?

Hurst D, et el. J Emerg Med 2015;49:1–7

Background
The American Heart Association recommends a “meticulous history” when evaluating patients with an initial episode of syncope. However, little is known about which historical features are most helpful in identifying children with undiagnosed cardiac syncope.

Objectives
Our objectives were 1) to describe the cardiac disease burden in Emergency Department (ED) syncope presentations, and 2) to identify which historical features are associated with a cardiac diagnosis.

Methods
Using syncope presentations in our ED between May 1, 2009 and February 28, 2013, we 1) performed a cross-sectional study describing the burden of cardiac syncope, and 2) determined the sensitivity and specificity of four historical features identifying cardiac syncope.

Results
Of 3445 patients, 44.5% were male presenting at 11.5 ± 4.5 years of age. Of patients with a cardiac diagnosis (68, 2%), only 3 (0.09%) were noted to have a previously undiagnosed cardiac cause of syncope: 2 with supraventricular tachycardia and 1 with myocarditis. Among the three cases and 100 randomly selected controls, the respective sensitivity and specificity of the historical features were 67% and 100% for syncope with exercise, 100% and 98% for syncope preceded by palpitations, and 67% and 70% for syncope without prodrome. The presence of at least two features yielded a sensitivity of 100% and specificity of 100%.

Conclusions
Our study, which represents the largest published series of pediatric syncope presenting to the ED, confirms that newly diagnosed cardiac causes of syncope are rare. Using a few specific historical features on initial interview can help guide further work-up more precisely.

12. Early Bystander CPR in Out-of-Hospital Cardiac Arrest Saves Lives

Hasselqvist-Ax I, et al. N Engl J Med 2015; 372:2307-2315

Background
Three million people in Sweden are trained in cardiopulmonary resuscitation (CPR). Whether this training increases the frequency of bystander CPR or the survival rate among persons who have out-of-hospital cardiac arrests has been questioned.

Methods
We analyzed a total of 30,381 out-of-hospital cardiac arrests witnessed in Sweden from January 1, 1990, through December 31, 2011, to determine whether CPR was performed before the arrival of emergency medical services (EMS) and whether early CPR was correlated with survival.

Results
CPR was performed before the arrival of EMS in 15,512 cases (51.1%) and was not performed before the arrival of EMS in 14,869 cases (48.9%). The 30-day survival rate was 10.5% when CPR was performed before EMS arrival versus 4.0% when CPR was not performed before EMS arrival (P less than 0.001). When adjustment was made for a propensity score (which included the variables of age, sex, location of cardiac arrest, cause of cardiac arrest, initial cardiac rhythm, EMS response time, time from collapse to call for EMS, and year of event), CPR before the arrival of EMS was associated with an increased 30-day survival rate (odds ratio, 2.15; 95% confidence interval, 1.88 to 2.45). When the time to defibrillation in patients who were found to be in ventricular fibrillation was included in the propensity score, the results were similar. The positive correlation between early CPR and survival rate remained stable over the course of the study period. An association was also observed between the time from collapse to the start of CPR and the 30-day survival rate.

Conclusions
CPR performed before EMS arrival was associated with a 30-day survival rate after an out-of-hospital cardiac arrest that was more than twice as high as that associated with no CPR before EMS arrival.

13. Vancomycin Use in Patients Discharged From the ED: A Retrospective Observational Cohort Study

Mueller K, et al. J Emerg Med. 2015;49:50-57.

Background
Infections due to methicillin-resistant Staphylococcus aureus (MRSA) are associated with significant morbidity and mortality and are typically treated with intravenous vancomycin. Given vancomycin's time-dependent mechanism of action, it is unlikely that vancomycin administration in the emergency department (ED) prior to disposition home could be beneficial.

Study Objectives
To characterize the indications, dosing, and appropriateness of vancomycin use in patients discharged from the ED.

Methods
This is a single-center retrospective observational cohort study of patients who received vancomycin in an urban, academic, tertiary care ED. The subjects were consecutive adult patients administered intravenous vancomycin in the ED and then discharged home over an 18-month period. Outcomes were measured 1) to characterize patients receiving vancomycin prior to discharge home from the ED; and 2) to identify patients that did not meet indications for appropriate use based on the 2011 Infectious Diseases Society of America guidelines for treating MRSA infections.

Results
There were 526 patients that received vancomycin in the ED prior to discharge during the study period. In this cohort, 368 (70%) patients were diagnosed with skin and soft tissue infections. A MRSA risk factor was present in 396 (75%) patients. Prior to discharge, one dose of vancomycin was administered to 357 (68%) patients. Underdosing of vancomycin occurred in 239 (73%) patients.

Conclusions
Vancomycin was given frequently to patients discharged home from the ED, most commonly for conditions where vancomycin was not indicated, such as skin and soft tissue infections. The majority of these patients received a vancomycin dosing strategy that is not only unlikely to lead to clinical improvement, but also has the potential to contribute adversely to the development of antibiotic resistance. Further investigation is needed into the impact of vancomycin use, the emergence of vancomycin resistance, and the role of ED-based antibiotic stewardship.

14. Tendon Rupture Associated With Excessive Smartphone Gaming 

Gilman L, et al. JAMA Intern Med. 2015;175(6):1048-1049.

Importance:  Excessive use of smartphones has been associated with injuries.

Observations:  A 29-year-old, right hand–dominant man presented with chronic left thumb pain and loss of active motion from playing a Match-3 puzzle video game on his smartphone all day for 6 to 8 weeks. On physical examination, the left extensor pollicis longus tendon was not palpable, and no tendon motion was noted with wrist tenodesis. The thumb metacarpophalangeal range of motion was 10° to 80°, and thumb interphalangeal range of motion was 30° to 70°. The clinical diagnosis was rupture of the left extensor pollicis longus tendon. The patient subsequently underwent an extensor indicis proprius (1 of 2 tendons that extend the index finger) to extensor pollicis longus tendon transfer. During surgery, rupture of the extensor pollicis longus tendon was seen between the metacarpophalangeal and wrist joints.

Conclusions and Relevance:  The potential for video games to reduce pain perception raises clinical and social considerations about excessive use, abuse, and addiction. Future research should consider whether pain reduction is a reason some individuals play video games excessively, manifest addiction, or sustain injuries associated with video gaming.

15. Comparative risk of GI bleeding with dabigatran, rivaroxaban, and warfarin: population based cohort study.

Abraham NS, et al. BMJ. 2015;350:h1857.

OBJECTIVE: To determine the real world risk of gastrointestinal bleeding associated with the use of the novel oral anticoagulants dabigatran and rivaroxaban compared with warfarin.

DESIGN: Retrospective, propensity matched cohort study.

SETTING: Optum Labs Data Warehouse, a large database including administrative claims data on privately insured and Medicare Advantage enrollees.

PARTICIPANTS: New users of dabigatran, rivaroxaban, and warfarin from 1 November 2010 to 30 September 2013.

MAIN OUTCOME MEASURES: Incidence rates (events/100 patient years) and propensity score matched Cox proportional hazards models were used to estimate rates of total gastrointestinal bleeds, upper gastrointestinal bleeds, and lower gastrointestinal bleeds for the novel oral anticoagulants compared with warfarin in patients with and without atrial fibrillation. Heterogeneity of treatment effect related to age was examined using a marginal effects model.

RESULTS: The incidence of gastrointestinal bleeding associated with dabigatran was 2.29 (95% confidence interval 1.88 to 2.79) per 100 patient years and that associated with warfarin was 2.87 (2.41 to 3.41) per 100 patient years in patients with atrial fibrillation. In non-atrial fibrillation patients, the incidence of gastrointestinal bleeding was 4.10 (2.47 to 6.80) per 100 patient years with dabigatran and 3.71 (2.16 to 6.40) per 100 patient years with warfarin. With rivaroxaban, 2.84 (2.30 to 3.52) gastrointestinal bleeding events per 100 patient years occurred in atrial fibrillation patients (warfarin 3.06 (2.49 to 3.77)/100 patient years) and 1.66 (1.23 to 2.24) per 100 patient years in non-atrial fibrillation patients (warfarin 1.57 (1.25 to 1.99)/100 patient years). In propensity score matched models, the risk of gastrointestinal bleeding with novel oral anticoagulants was similar to that with warfarin in atrial fibrillation patients (dabigatran v warfarin, hazard ratio 0.79 (0.61 to 1.03); rivaroxaban v warfarin, 0.93 (0.69 to 1.25)) and in non-AF patients (dabigatran v warfarin, hazard ratio 1.14 (0.54 to 2.39); rivaroxaban v warfarin, 0.89 (0.60 to 1.32)). The risk of gastrointestinal bleeding increased after age 65, such that by age 76 the risk exceeded that with warfarin among atrial fibrillation patients taking dabigatran (hazard ratio 2.49 (1.61 to 3.83)) and patients with and without atrial fibrillation taking rivaroxaban (2.91 (1.65 to 4.81) and 4.58 (2.40 to 8.72), respectively).

CONCLUSIONS: The risk of gastrointestinal bleeding related to novel oral anticoagulants was similar to that for warfarin. Caution should be used when prescribing novel oral anticoagulants to older people, particularly those over 75 years of age.

16. Efficacy of an Acute Pain Titration Protocol Driven by Patient Response to a Simple Query: “Do You Want More Pain Medication?”

Chang AK, et al. Ann Emerg Med. 2015 June 11 [Epub ahead of print]

Study objective
We assess the efficacy of a simple pain titration protocol of 1-mg increments of intravenous hydromorphone, given at fixed intervals, driven solely by patient response to a yes/no question.

Methods
This was a prospective interventional cohort study of nonelderly adults with acute severe pain defined as requiring intravenous opioids in the judgment of the attending emergency physician. All patients received 1 mg intravenous hydromorphone and 30 minutes later were asked, “Do you want more pain medication?” Patients responding yes received an additional 1 mg of intravenous hydromorphone and were asked the same question 30 minutes after receiving it. Those responding no did not receive additional opioid and were asked the question again 30 minutes later. Each patient was queried 4 times. The primary endpoint was the proportion of patients achieving satisfactory pain control, defined as declining additional pain medication on 1 or more occasions.

Results
Of 215 patients enrolled, there were 8 protocol violations, leaving 207 patients with analyzable data; 205 of 207 patients (99%; 95% confidence interval 97% to 100%) achieved satisfactory analgesia at 1 or more points during the study. Nine patients desaturated below 95% on room air, 2 had respiratory rates less than 10 breaths/min, and 2 had pulse rates less than 50 beats/min. No adverse events were associated with amount of hydromorphone received.

Conclusion
A pain protocol, based on titration of 1 mg intravenous hydromorphone, driven solely by patient response to a simple standardized question repeated at intervals, resulted in achievement of satisfactory analgesia on at least 1 occasion in 99% of patients.

17. Common Diagnoses and Outcomes in Elderly Patients Who Present to the ED with Non-Specific Complaints

Quinna K, et al. CJEM. 11 June 2015 [Epub ahead of print]

Objective Elderly patients often present to the emergency department (ED) with non-specific complaints. Previous studies indicate that such patients are at greater risk for life-threatening illnesses than similarly aged patients with specific complaints. We evaluated the diagnoses and outcomes of elderly patients presenting with non-specific complaints.

Methods Two trained data abstractors independently reviewed all records of patients over 70 years old presenting (to two academic EDs) with non-specific complaints, as defined by the Canadian Emergency Department Information System (CEDIS). Outcomes of interest were ED discharge diagnosis, hospital admission, length of stay, and ED revisit within 30 days.

Results Of the 743 patients screened for the study, 265 were excluded because they had dizziness, vertigo, or a specific complaint recorded in the triage notes. 419 patients (87.7%) presented with weakness and 59 patients (12.3%) presented with general fatigue or unwellness. The most common diagnoses were urinary tract infection (UTI) (11.3%), transient ischemic attack (TIA) (10.0%), and dehydration (5.6%). There were 11 hospital admissions with median length of stay of five days. Eighty-one (16.9%) patients revisited the ED within 30 days of discharge. Regression analysis indicated that arrival to the ED by ambulance was independently associated with hospital admission.

Conclusions Our results suggest that elderly patients presenting to the ED with non-specific complaints are not at high risk for life-threatening illnesses. The most common diagnoses are UTI, TIA, and dehydration. Most patients can be discharged safely, although a relatively high proportion revisit the ED within 30 days.

18. Medical expulsive therapy in adults with ureteric colic [is bunk!]: a multicentre, randomised, placebo-controlled trial.

Pickard R, et al. Lancet. 2015 May 18. [Epub ahead of print]

BACKGROUND: Meta-analyses of previous randomised controlled trials concluded that the smooth muscle relaxant drugs tamsulosin and nifedipine assisted stone passage for people managed expectantly for ureteric colic, but emphasised the need for high-quality trials with wide inclusion criteria. We aimed to fulfil this need by testing effectiveness of these drugs in a standard clinical care setting.

METHODS: For this multicentre, randomised, placebo-controlled trial, we recruited adults (aged 18-65 years) undergoing expectant management for a single ureteric stone identified by CT at 24 UK hospitals. Participants were randomly assigned by a remote randomisation system to tamsulosin 400 μg, nifedipine 30 mg, or placebo taken daily for up to 4 weeks, using an algorithm with centre, stone size (≤5 mm or over 5 mm), and stone location (upper, mid, or lower ureter) as minimisation covariates. Participants, clinicians, and trial personnel were masked to treatment assignment. The primary outcome was the proportion of participants who did not need further intervention for stone clearance within 4 weeks of randomisation, analysed in a modified intention-to-treat population defined as all eligible patients for whom we had primary outcome data. This trial is registered with the European Clinical Trials Database, EudraCT number 2010-019469-26, and as an International Standard Randomised Controlled Trial, number 69423238.

FINDINGS: Between Jan 11, 2011, and Dec 20, 2013, we randomly assigned 1167 participants, 1136 (97%) of whom were included in the primary analysis (17 were excluded because of ineligibility and 14 participants were lost to follow-up). 303 (80%) of 379 participants in the placebo group did not need further intervention by 4 weeks, compared with 307 (81%) of 378 in the tamsulosin group (adjusted risk difference 1·3% [95% CI -5·7 to 8·3]; p=0·73) and 304 (80%) of 379 in the nifedipine group (0·5% [-5·6 to 6·5]; p=0·88). No difference was noted between active treatment and placebo (p=0·78), or between tamsulosin and nifedipine (p=0·77). Serious adverse events were reported in three participants in the nifedipine group (one had right loin pain, diarrhoea, and vomiting; one had malaise, headache, and chest pain; and one had severe chest pain, difficulty breathing, and left arm pain) and in one participant in the placebo group (headache, dizziness, lightheadedness, and chronic abdominal pain).

INTERPRETATION: Tamsulosin 400 μg and nifedipine 30 mg are not effective at decreasing the need for further treatment to achieve stone clearance in 4 weeks for patients with expectantly managed ureteric colic.

19. A Review of Lawsuits Related to Point-of-care Emergency US Applications

Stolz L, et al. Western J Emerg Med. 2015;16(1):1-4.

Introduction New medical technology brings the potential of lawsuits related to the usage of that new technology. In recent years the use of point-of-care (POC) ultrasound has increased rapidly in the emergency department (ED). POC ultrasound creates potential legal risk to an emergency physician (EP) either using or not using this tool. The aim of this study was to quantify and characterize reported decisions in lawsuits related to EPs performing POC ultrasound.

Methods We conducted a retrospective review of all United States reported state and federal cases in the Westlaw database. We assessed the full text of reported cases between January 2008 and December 2012. EPs with emergency ultrasound fellowship training reviewed the full text of each case. Cases were included if an EP was named, the patient encounter was in the emergency department, the interpretation or failure to perform an ultrasound was a central issue and the application was within the American College of Emergency Physician (ACEP) ultrasound core applications. In order to assess deferred risk, cases that involved ultrasound examinations that could have been performed by an EP but were deferred to radiology were included.

Results We identified five cases. All reported decisions alleged a failure to perform an ultrasound study or a failure to perform it in a timely manner. All studies were within the scope of emergency medicine and were ACEP emergency ultrasound core applications. A majority of cases (n=4) resulted in a patient death. There were no reported cases of failure to interpret or misdiagnoses.

Conclusion In a five-year period from January 2008 through December 2012, five malpractice cases involving EPs and ultrasound examinations that are ACEP core emergency ultrasound applications were documented in the Westlaw database. All cases were related to failure to perform an ultrasound study or failure to perform a study in a timely manner and none involved failure to interpret or misdiagnosis when using of POC ultrasound.


20. Some benefits of reading good fiction

Here’s a little 5-minute British video by practical philosopher and educator Alain de Botton that articulates a number of reasons why so many of us find good novels not just entertaining but also enlightening and in some small way transforming:  http://youtu.be/4RCFLobfqcw
  • Good fiction saves time by serving as a reality simulator, helping us accrue wisdom from others’ experiences
  • It makes us nicer by cultivating empathy (especially for outgroups that we might not otherwise engage with)
  • It cures a sense of isolation by helping us reframe our sense of ‘normal’ by discovering that others share our doubts and dreams, fears and fantasies
  • It prepares us for failure by understanding the complex contradictions of human nature and our all-too-common moral shortcomings (in contrast to the harsh monochromatic criticism characteristic of the media)

De Botton is a brilliant polymath whose insights I have enjoyed over the years—mostly from his non-fiction work, though he started his writing career with a fictional piece undertaken on the side (!) during his doctoral studies (of French philosophy). The first book sold over 2 million copies, so he dropped out of Harvard to pursue a writing career. Good career move.  

21. Micro Bits

A. Podcast Review of Thyroid Storm

Via EM CRIT via EM RAP


B. Supplemental Temporary IVC Filters No Help in Anticoagulated PE Patients

No reduction in recurrence or mortality in randomized study.


C. Eleanor Roosevelt's last days: A bioethical case study

When Eleanor Roosevelt died in 1962, she was widely regarded as "the greatest woman in the world." Despite her celebrity, or more likely because of it, she had to endure a prolonged period of intense suffering and humiliation before dying, which was due in large part to her medical care. Her case reveals a great deal about the evolution of the bioethics of dying and concepts of end-of-life care in America.


D. Metabolic syndrome affects 35% of U.S. adults, study finds

Metabolic syndrome, a combination of health conditions including hypertension, waist measurements, high blood sugar and irregular cholesterol, is a key sign of heart disease and diabetes risk, according to a study in the Journal of the American Medical Association. Researchers found that in 2011 to 2012, 35% of adult Americans had metabolic syndrome. Among people 60 years old and older, 47% of people had metabolic syndrome, while 18% between ages 20 to 39 had the condition.


E. Report estimates 10% of children are diagnosed with ADHD

A report from the CDC says that 1 in 10 children and teenagers has been diagnosed with attention-deficit/hyperactivity disorder. Boys are diagnosed at about double the rate of girls. Hispanic children and teens are the least likely to be diagnosed with ADHD, and children from more affluent families are less likely to have an ADHD diagnosis than children from lower-income families.


F. Conditioned analgesia from known placebo

Belief in effective placebo treatment is widely thought to be critical for placebo analgesia. Many placebo responses appear to be mediated by expectations that are strengthened as treatment cues are reinforced with positive outcomes. Yet placebo effects may occur even when participants know they are receiving placebo. Can conditioned placebo analgesia persist in the absence of expectations? This report studied long (four days) vs. short (one day) conditioning to placebo treatment. After an initial placebo test, a "reveal" manipulation convincingly showed participants they had never received an active drug. Placebo analgesia persisted after the reveal in the long conditioning group only.


G. Concussion may affect children's academic performance

Researchers followed 349 students, ages 5 to 18, who had a concussion and found that 77% of those still recovering had difficulty taking notes and took longer to complete homework, while 88% experienced fatigue, headaches, had problems concentrating or found it difficult to understand lessons. The findings, published in Pediatrics, also showed students with severe head injuries were more likely to have the most academic problems.


H. Searching for Joy in Residency by Listening to Our Patients

Charlton B, et al. JAMA Intern Med 2015 June 08 [Epub ahead of print].

As medical trainees, we have come to appreciate that today’s health care systems can be chaotic, fragmented, and filled with menial administrative tasks—in short, often joyless. Recently, Sinsky et al1 argued that such joylessness is one reason why fewer trainees choose primary care and why seasoned primary care physicians are leaving the field in droves. To re-instill joy, those authors proposed practice transformation—team-based care, pre-visit planning, scribes—to return “healing relationships with patients” to the center of outpatient medicine. These ideas inspired us to ask a similar question: how can we find joy in residency training? Some aspects of residency are joyless: sleep deprivation, difficulty seeing our loved ones, anxiety about knowing enough medicine, and doubts about clinical decisions made in the middle of the night. However, like Sinsky et al1 suggest, we have found healing relationships with patients to be often joyful and always reinvigorating. Cultivating such relationships means developing practical strategies that allow us to listen generously and communicate compassionately despite the many demands on our time…


I. Outcomes of ED thoracotomy in a tertiary care Canadian trauma centre

Survival following an EDT in our small, regional trauma centre is consistent with survival rates from larger published datasets. An EDT should continue to be performed under accepted clinical indications.


J. Kidney function and the use of nitrofurantoin to treat UTI in older women

Background: The antibiotic nitrofurantoin is commonly used to treat uncomplicated urinary tract infections. However, when this drug is used by patients with reduced kidney function, its urine concentration may be subtherapeutic.

Conclusion: In this study, the presence of mild or moderate reductions in estimated glomerular filtration rate did not justify avoidance of nitrofurantoin.


K. Methicillin-resistant Staphylococcus Aureus Lip Infection Mimicking Angioedema


L. Faculty Prediction of In-Training Examination Scores of EM Residents: A Multicenter Study


M. Fecal transplants effective in 85% of patients with recurrent C. diff infection

A review study funded by the Department of Veterans Affairs found fecal transplantation successfully treated recurrent Clostridium difficile infection in 85% of cases and helped 55% of patients who did not respond to drugs. Researchers said, however, the available data is "low strength" and is inadequate to draft guidelines for determining ideal donors, identifying fecal preparation methods or recommending the best way to deliver the stool to patients.

Thursday, May 28, 2015

Lit Bits: May 28, 2015

From the recent medical literature...

1. Extracorporeal Treatment for Salicylate Poisoning: Systematic Review and Recommendations from the EXTRIP Workgroup.

Juurlink DN, et al, for the EXTRIP Workgroup. Ann Emerg Med. 2015 May 8 [Epub ahead of print]

STUDY OBJECTIVE
Salicylate poisoning is a challenging clinical entity associated with substantial morbidity and mortality. The indications for extracorporeal treatments such as hemodialysis are poorly defined. We present a systematic review of the literature along with evidence- and consensus-based recommendations on the use of extracorporeal treatment in salicylate poisoning.

METHODS
The Extracorporeal Treatments in Poisoning (EXTRIP) Workgroup is a multidisciplinary group with international representation whose aim is to provide evidence-based recommendations on the use of extracorporeal treatments in poisoning. We conducted a systematic literature review followed by data extraction and summarized findings, following a predetermined format. The entire work group voted by a 2-round modified Delphi method to reach consensus on voting statements, using a RAND/UCLA Appropriateness Method to quantify disagreement. Anonymous votes were compiled, returned, and discussed in person. A second vote determined the final recommendations.

RESULTS
Eighty-four articles met inclusion criteria, including 1 controlled clinical trial, 3 animal studies, and 80 case reports or case series, yielding an overall very low quality of evidence for all recommendations. Clinical data on 143 patients (130 sets of which could be analyzed for patient-level entry data), including 14 fatalities, were reviewed. Toxicokinetic data on 87 patients were also included. After the second round of voting, the workgroup concluded that salicylates are dialyzable by hemodialysis and hemoperfusion (level of evidence=B) and recommended extracorporeal treatment in patients with severe salicylate poisoning (1D), including any patient with altered mental status (1D), with acute respiratory distress syndrome requiring supplemental oxygen (1D), and for those in whom standard therapy is deemed to be failing (1D) regardless of the salicylate concentration. High salicylate concentrations warrant extracorporeal treatment regardless of signs and symptoms (above 7.2 mmol/L [100 mg/dL] [1D]; and above 6.5 mmol/L [90 mg/dL] [2D]), with lower thresholds applied for patients with impaired kidney function (above 6.5 mmol/L [90 mg/dL] [1D]; above 5.8 mmol/L [80 mg/dL] [2D]). Extracorporeal treatment is also suggested for patients with severe acidemia (pH ≤7.20 in the absence of other indications) (2D). Intermittent hemodialysis is the preferred modality (1D), although hemoperfusion (1D) and continuous renal replacement therapies (3D) are acceptable alternatives if hemodialysis is unavailable, as is exchange transfusion in neonates (1D).

CONCLUSION
Salicylates are readily removed by extracorporeal treatment, with intermittent hemodialysis being the preferred modality. The signs and symptoms of salicylate toxicity listed warrant extracorporeal treatment, as do high concentrations regardless of clinical status.

2. ED Corticosteroid Use for Allergy or Anaphylaxis Is Not Associated With Decreased Relapses

Grunau BE et al. Ann Emerg Med. 2015 Mar 25. [Epub ahead of print]

STUDY OBJECTIVE
Corticosteroids (steroids) are often used to mitigate symptoms and prevent subsequent reactions in emergency department (ED) patients with allergic reactions, despite a lack of evidence to support their use. We sought to determine the association of steroid administration with improved clinical outcomes.

METHODS
Adult allergy-related encounters to 2 urban EDs during a 5-year period were identified and classified as "anaphylaxis" or "allergic reaction." Regional and provincial databases identified subsequent ED visits or deaths within a 7-day period. The primary outcome was allergy-related ED revisits in the steroid- and nonsteroid-exposed groups, adjusting for potential confounders with a propensity score analysis; secondary outcomes included the number of clinically important biphasic reactions and deaths.

RESULTS
Two thousand seven hundred one encounters (473 anaphylactic) were included; 48% were treated with steroids. Allergy-related ED revisits occurred in 5.8% and 6.7% of patients treated with and without steroids, respectively (adjusted odds ratio [OR] 0.91; 95% confidence interval [CI] 0.64 to 1.28), with a number needed to treat (NNT) to benefit of 176 (95% CI NNT to benefit 39 to ∞ to NNT to harm 65). The adjusted OR in the anaphylaxis subgroup was 1.12 (95% CI 0.41 to 3.27). In the allergic reaction group, the adjusted OR was 0.91 (95% CI 0.63 to 1.31), with an NNT to benefit of 173 (95% CI NNT to benefit 38 to ∞ to NNT to harm 58). In the steroid and nonsteroid groups, there were 4 and 1 clinically important biphasic reactions, respectively. There were no deaths.

CONCLUSION
Among ED patients with allergic reactions or anaphylaxis, corticosteroid use was not associated with decreased relapses to additional care within 7 days.

3. Risk for Clinically Relevant Adverse Cardiac Events in Patients with CP at Hospital Admission.

Weinstock MB, et al. JAMA Intern Med. 2015 May 18 [Epub ahead of print].

Importance: Patients with potentially ischemic chest pain are commonly admitted to the hospital or observed after a negative evaluation in the emergency department (ED) owing to concern about adverse events. Previous studies have looked at 30-day mortality, but no current large studies have examined the most important information regarding ED disposition: the short-term risk for a clinically relevant adverse cardiac event (including inpatient ST-segment elevation myocardial infarction, life-threatening arrhythmia, cardiac or respiratory arrest, or death).

Objective: To determine the incidence of clinically relevant adverse cardiac events in patients hospitalized for chest pain with 2 troponin-negative findings, nonconcerning initial ED vital signs, and nonischemic, interpretable electrocardiographic findings.

Design, Setting, and Participants: We conducted a blinded data review of 45 416 encounters obtained from a prospectively collected database enrolling adult patients admitted or observed with the following inclusion criteria: (1) primary presenting symptom of chest pain, chest tightness, chest burning, or chest pressure and (2) negative findings for serial biomarkers. Data were collected and analyzed from July 1, 2008, through June 30, 2013, from the EDs of 3 community teaching institutions with an aggregate census of more than 1 million visits. We analyzed data extracted by hypothesis-blinded abstractors.

Main Outcomes and Measures: The primary outcome was a composite of life-threatening arrhythmia, inpatient ST-segment elevation myocardial infarction, cardiac or respiratory arrest, or death during hospitalization.

Results: Of the 45 416 encounters, 11 230 met criteria for inclusion. Mean patient age was 58.0 years. Of the 11 230 encounters, 44.83% of patients arrived by ambulance and 55.00% of patients were women. Relevant history included hypertension in 46.00%, diabetes mellitus in 19.72%, and myocardial infarction in 13.16%. The primary end point occurred in 20 of the 11 230 patients (0.18% [95% CI, 0.11%-0.27%]). After excluding patients with abnormal vital signs, electrocardiographic ischemia, left bundle branch block, or a pacemaker rhythm, we identified a primary end point event in 4 of 7266 patients (0.06% [95% CI, 0.02%-0.14%]). Of these events, 2 were noncardiac and 2 were possibly iatrogenic.

Conclusions and Relevance: In adult patients with chest pain admitted with 2 negative findings for serial biomarkers, nonconcerning vital signs, and nonischemic electrocardiographic findings, short-term clinically relevant adverse cardiac events were rare and commonly iatrogenic, suggesting that routine inpatient admission may not be a beneficial strategy for this group.

4. Should We Anticoagulate Patients with CHA2DS2-VASc Scores of 1?

Journal Watch Emergency Medicine 2015 May 7

Kirsten E. Fleischmann, MD, MPH reviewing Friberg L et al. J Am Coll Cardiol 2015 Jan 27. Singer DE and Ezekowitz MD. J Am Coll Cardiol 2015 Jan 27. Chao T-F et al. J Am Coll Cardiol 2015 Feb 24. Lip GY et al. J Am Coll Cardiol 2015 Apr 14.

Reported stroke rates vary widely. Kirsten E. Fleischmann, MD, MPHThe CHA2DS2-VASc score is used to stratify stroke risk in patients with atrial fibrillation (AF) based on seven features (Congestive heart failure, Hypertension, Age ≥75, Diabetes, prior Stroke or transient ischemic attack, Vascular disease, Age 65–74, and Sex). For patients with nonvalvular AF and scores of ≥2, U.S. guidelines recommend lowering stroke risk with anticoagulation (warfarin or novel anticoagulants; NEJM JW Cardiol Jun 2014 and Circulation 2014 Mar 28; [e-pub]), whereas patients with scores of 1 can be treated with aspirin, anticoagulants, or no agent at all. But are patients with scores of 1 likely to benefit from full anticoagulation? Several recent studies address aspects of this question.

In an analysis of over 140,000 Swedish patients with AF but without anticoagulant exposure, researchers used both lenient and more stringent definitions of “stroke events” to determine risk for stroke in men and women with CHA2DS2-VASc scores of 1. Annual stroke rates were 0.1% to 0.2% in women and 0.5% to 1.3% in men, depending on the definition used. The authors concluded that patients in this risk group are unlikely to benefit substantially from anticoagulation.

Conversely, in a retrospective database analysis from Taiwan, annual risks for stroke in patients with a single risk factor other than sex (i.e., men with CHA2DS2-VASc scores of 1 and women with scores of 2) were 2.75% and 2.55%, respectively. Stroke risk was highest in people between ages 65 and 74, with annual stroke risks of 3.5% in men and 3.3% in women in this group.

Finally, in a Danish cohort, stroke rates at 1 year for untreated patients without additional risk factors (i.e., CHA2DS2-VASc scores of 0 for men and 1 for women) were very low (0.49 per 100 person-years), but this risk tripled (1.55 per 100 person-years) in those with one additional risk factor.

Comment
In the first study, stroke rates for patients with CHA2DS2-VASc scores of 1 who did not receive anticoagulation were lower than in the other two reports; therefore, the benefit of initiating anticoagulation was marginal. Editorialists point out the relatively wide variation in stroke rates seen in the literature, as demonstrated by the higher rates observed in the Danish and Taiwanese studies. Both the Swedish and Taiwanese studies show that not all factors worth 1 point in the CHA2DS2-VASc score convey equal risk. For example, age between 65 and 74 was associated with higher risk than other factors. Until we have randomized data in lower-risk patients, individualized decision making about antithrombotic therapy seems reasonable in patients with a single risk factor, with recognition of the strong effect of age on stroke risk.

5. Validation of CSF findings in aneurysmal SAH: a case series study.

Mark DG, et al. Amer J Emerg Med. 2015 May 15 [Epub ahead of print].

Background
Recently proposed cutoff criteria for cerebrospinal fluid (CSF) analyses might safely exclude a diagnosis of aneurysmal subarachnoid hemorrhage (aSAH).

Objective
The objective of this study was to examine the sensitivity of a CSF red blood cell (RBC) count greater than 2000 × 106/L (ie, 2000 RBCs per microliter) or the presence of visible CSF xanthochromia in identifying patients with aSAH.

Methods
We identified a retrospective case series of patients diagnosed with aSAH after lumbar puncture (LP) in an integrated health delivery system between January 2000 and June 2013 by chart review. All identified patients had at least 1 cerebral aneurysm that was treated with a neurosurgical or endovascular intervention during the index hospitalization. The lowest CSF RBC count was used for validation analysis. Cerebrospinal fluid color was determined by visual inspection. Xanthochromia was defined as pink, orange, or yellow pigmentation of CSF supernatant.

Results
Sixty-four patients met study inclusion criteria. Of these, 17 (33%) of 52 underwent LP within 12 hours of headache onset, and 49 (84%) of 58 exhibited CSF xanthochromia. The median CSF RBC count was 63250 × 106/L. The sensitivity of a CSF RBC count of greater than 2000 × 106/L in identifying aSAH was 96.9% (95% confidence interval, 89.3%-99.1%). Additional consideration of CSF xanthochromia resulted in a sensitivity of 100% (95% confidence interval, 94.3%-100%).

Conclusions
All patients in this case series of patients with aSAH had either a CSF RBC count greater than 2000 × 106/L or visible CSF xanthochromia, increasing the likelihood that this proposed cutoff strategy may safely identify patients who warrant further investigation for an aneurysmal cause of subarachnoid hemorrhage.

6. Departure from central line ritual.

Ballard DW, et al. AHRQ WebM&M [serial online]. May 2015.

The Case: A 55-year-old man with a history of poorly controlled diabetes mellitus, pancreatic insufficiency, and alcohol and cocaine abuse was found unconscious by his neighbors. The patient had last been seen 2 days prior and complained of dizziness, thirst, and nausea. Emergency medical services found him unresponsive, with a Glasgow Coma Scale score of 3. He was intubated in the field. Upon arrival in the emergency department (ED), his pH was less than 6.8, carbon dioxide 37 mm Hg, oxygen 80 mm Hg, potassium 7.8 mEq/L, glucose 1400 mg/dL, lactate 11.2 mg/dL, and anion gap 42 mEq/L.

A right internal jugular line was placed for access. The resident who placed the line was relatively experienced in line placement but was unable to confirm placement with ultrasound. Instead he used manometry, which was not a part of the normal ED routine for line placement. He ultimately chose to pull the line. Just then, another trauma patient arrived, and the supervising attending physician left the room. The resident opened a second line insertion kit and restarted the process. Ultrasound was used to confirm correct placement. Upon flushing the line, it was noted that one of the ports was not working. The patient soon went into atrial tachycardia, which broke with adenosine. A chest radiograph was not obtained until later, after the patient went into ventricular fibrillation in the intensive care unit.

When the chest radiograph was finally completed, a retained wire was noted in the pulmonary artery. The interventional radiology team was consulted for wire removal. The retained wire likely caused a cardiac arrest, which required shocks, chest compressions, and cooling. After guidewire removal, the patient had no further episodes of arrhythmias, but experienced several other serious complications during a prolonged and stormy hospitalization.

The Commentary: This case represents a preventable medical error. In fact, this particular error—retained guidewire after central venous catheterization (CVC)—is so preventable that it has been characterized in the literature as "completely avoidable" and a "never event."(1,2) Nevertheless, this error continues to occur in numerous hospitals annually with a relatively constant event rate of 0.04 to 0.08 reported events per 1000 staffed hospital beds.(3) In order to successfully address this issue, we must systematically examine the root causes and focus proposed solutions on both error prevention and risk mitigation though early error recognition…

The remainder of the discussion (free): http://webmm.ahrq.gov/case.aspx?caseID=349

7. Rapid sequence induction of anaesthesia via the intraosseous route: a prospective observational study.

Barnard EB, et al. Emerg Med J. 2015 Jun;32(6):449-52.

BACKGROUND: Intraosseous (IO) drug infusion has been reported to have similar pharmacokinetics to intravenous (IV) infusion. In military and civilian trauma, the IO route is often used to obtain rapid and reliable parenteral access for drug administration. Only a few case reports have described the use of IO infusion to administer drugs for rapid sequence induction of anaesthesia (RSI).

OBJECTIVE: We aimed to assess the feasibility of the administration of RSI drugs via an IO catheter in a prospective observational study.

METHODS: A prospective observational study was undertaken at a combat hospital in Afghanistan. A validated data form was used to record the use of IO drugs for RSI by the prehospital, physician-led Medical Emergency Response Team (MERT), and by inhospital physicians. Data were captured between January and May 2012 by interview with MERT physicians and inhospital physicians directly after RSI. The primary outcome measure was the success rate of first-pass intubation with direct laryngoscopy.

RESULTS: 34 trauma patients (29 MERT and 5 inhospital) underwent RSI with IO drug administration. The median age was 24 years and median injury severity score 25; all were male. The predominant mechanism of injury was blast (n=24), followed by penetrating (n=6), blunt (n=3) and burn (n=1). First-pass intubation success rate was 97% (95% CI 91% to 100%). A Cormack-Lehane grade 1 view, by direct laryngoscopy, was obtained at first look in 91% (95% CI 81% to 100%) of patients.

CONCLUSIONS: In this prospective, observational study, IO drug administration was successfully used for trauma RSI, with a comparable first pass intubation success than published studies describing the IV route.

8. High-Flow Oxygen through Nasal Cannula in Acute Hypoxemic Respiratory Failure.

Frat JP, et al. N Engl J Med. 2015 May 17. [Epub ahead of print]

Background: Whether noninvasive ventilation should be administered in patients with acute hypoxemic respiratory failure is debated. Therapy with high-flow oxygen through a nasal cannula may offer an alternative in patients with hypoxemia.

Methods: We performed a multicenter, open-label trial in which we randomly assigned patients without hypercapnia who had acute hypoxemic respiratory failure and a ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen of 300 mm Hg or less to high-flow oxygen therapy, standard oxygen therapy delivered through a face mask, or noninvasive positive-pressure ventilation. The primary outcome was the proportion of patients intubated at day 28; secondary outcomes included all-cause mortality in the intensive care unit and at 90 days and the number of ventilator-free days at day 28.

Results: A total of 310 patients were included in the analyses. The intubation rate (primary outcome) was 38% (40 of 106 patients) in the high-flow-oxygen group, 47% (44 of 94) in the standard group, and 50% (55 of 110) in the noninvasive-ventilation group (P=0.18 for all comparisons). The number of ventilator-free days at day 28 was significantly higher in the high-flow-oxygen group (24±8 days, vs. 22±10 in the standard-oxygen group and 19±12 in the noninvasive-ventilation group; P=0.02 for all comparisons). The hazard ratio for death at 90 days was 2.01 (95% confidence interval [CI], 1.01 to 3.99) with standard oxygen versus high-flow oxygen (P=0.046) and 2.50 (95% CI, 1.31 to 4.78) with noninvasive ventilation versus high-flow oxygen (P=0.006).

Conclusions: In patients with nonhypercapnic acute hypoxemic respiratory failure, treatment with high-flow oxygen, standard oxygen, or noninvasive ventilation did not result in significantly different intubation rates. There was a significant difference in favor of high-flow oxygen in 90-day mortality.


Editorial: Saving Lives with High-Flow Nasal Oxygen


9. Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis: an etiology worth considering in the differential diagnosis of delirium.

Punja M, et al. Clin Toxicol (Phila). 2013 Sep-Oct:51(8):794-7.

Medical toxicologists are frequently consulted when young patients present with delirium attributed to suspected poisoning. Medical toxicologists should be aware of non-toxicological mimics of delirium. We describe two patients ultimately diagnosed with anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis for which a toxicological consultation was requested to evaluate for neuroleptic malignant syndrome (NMS).

A 21 year old male was sent from a psychiatric facility for new, worsening psychotic symptoms. He had autonomic instability, confusion, and hyper-reflexia. He was treated for NMS without improvement, and after an extensive workup was unrevealing, he was discharged home with significant cognitive dysfunction. Stored CSF later tested positive for anti-NMDAR antibodies.

CASE 2: A 27 year old female was sent from a psychiatric facility for a seizure and new psychiatric symptoms. She was agitated and had violent, alternating extremity flexion and extension along with autonomic instability. She was treated for NMS, rhabdomyolysis, and rabies before analysis of CSF demonstrated anti-NMDAR antibodies. Treatment included surgical resection of a suspicious ovarian cyst, steroids and IVIG, with moderate improvement.

Autoimmune syndromes of the central nervous system result from receptor dysfunction after an antibody response to extracellular or intracellular antigens, such as subunits of the NMDA receptor. The NMDA subunits NR2b and NR2a, in addition to the N-terminal region of the glycine binding NR1 subunit, have been implicated. Typical features such as memory loss, movement disorders, and hallucinations reflect the density and distribution of neuronal NDMA receptors. As young people, particularly young women, are predominantly affected, initial symptoms may be attributed to encephalopathy from drug abuse or schizophrenia. Toxicologists may be consulted as many features mimic NMS. Serum and cerebrospinal fluid can be checked for anti-NMDAR antibodies as part of a paraneoplastic or meningioencephalitis panel. Effective treatments have been described and include surgical resection and immunosuppressive medications.

10. Images in Clinical Practice

Young Man with Pain in Right Eye


Elderly Woman with Shortness of Breath

Man with Pain in Left Eye

Trapped Lung

Conjunctival Melanoma

Intraoral Malignant Melanoma

Lindsay’s Nails in Chronic Kidney Disease

Disseminated Lyme Disease

Verrucous Tongue Lesion

Hemichoreoathetosis in Neurosarcoidosis

11. Safety and efficacy of antihypertensive prescription at ED discharge.

Brody A, et al. Acad Emerg Med. 2015 May;22(5):632-5.

BACKGROUND: Poor blood pressure (BP) control is a primary risk factor for target organ damage in the heart, brain, and kidney. Uncontrolled hypertension is common among emergency department (ED) patients, particularly in underresourced settings, but it is unclear what role ED providers should play in the management of chronic antihypertensive therapy.

OBJECTIVES: The objective was to evaluate the safety and efficacy of prescribing antihypertensive therapy from the ED.

METHODS: This was a retrospective study of data pooled from two prospective, longitudinal, randomized controlled trials, both of which enrolled ED patients with asymptomatic hypertension. Antihypertensives were prescribed at emergency physician discretion, and this was not related to randomization arm. Demographic data, BP at screening and randomization visit, and data on adverse effects potentially related to antihypertensive therapy were compiled. Means were compared using Student's t-tests, and proportions were compared using chi-square tests. The effect of antihypertensive therapy on BP control was further analyzed using multivariable regression modeling controlling for age, race, sex, hypertension history, study cohort, and ED BP.

RESULTS: Data were abstracted for 217 subjects. The median interval from ED visit to randomization was 12 days. Seventy-six subjects (35%) received one or more prescriptions for antihypertensive therapy. Age, sex, race, hypertension history, and mean duration of hypertension were equivalent between groups. Although mean ED BP was higher among those who received prescriptions, the mean systolic BP (sBP) reduction from ED to randomization was significantly greater (difference = 19 mm Hg, 95% confidence interval = 12 to 26 mm Hg). No patient in either group had an sBP less than 100 mm Hg at randomization. On multiple regression modeling, randomization sBP reduction was independently associated with antihypertensive prescription (p = 0.001). The incidence of adverse effects was equivalent and low in both groups. No new neurological deficits, ischemic events, or life-threatening anaphylactic reactions were reported in either group.

CONCLUSIONS: Prescription of antihypertensive medication from the ED is associated with significantly lower sBP at short-term outpatient follow-up. Antihypertensive therapy was not associated with an increased incidence of adverse events, and BP reduction did not exceed potentially harmful levels. Initiation of chronic antihypertensive therapy in the ED is safe and effective and may be a reasonable consideration for at-risk populations.

12. Procedures in Children

A. A Randomized Clinical Trial of Jet-Injected Lidocaine to Reduce Venipuncture Pain for Young Children

Lunoe MM, et al. Ann Emerg Med 2015 April 24 [Epub ahead of print]

STUDY OBJECTIVE: The J-Tip (National Medical Products Inc, Irvine, CA) uses air instead of a needle to push lidocaine into the skin. To our knowledge, no studies have investigated its use for venipuncture in young children. We determine whether the J-Tip decreased venipuncture pain in young children compared with vapocoolant spray.

METHODS: Children aged 1 to 6 years were randomized into 3 groups: intervention (J-Tip), control (vapocoolant spray), and sham (vapocoolant spray and pop of an empty J-Tip). The procedure was videotaped and scored with the Face, Legs, Activity, Cry and Consolability (FLACC) tool at 3 points; baseline, before approach; device, at J-Tip deployment; and at venipuncture. The FLACC tool was scored 0 (none) to 10 (severe). Comparisons of pain scores over time were made with the generalized estimating equation. Venipuncture success and adverse effects were assessed and compared with χ2.

RESULTS: Two hundred five children enrolled: intervention 96, control 53, and sham 56. There were no between-group differences in baseline characteristics. There was no mean change in pain scores from device to venipuncture in the intervention group (0.26; 95% confidence interval [CI] -0.31 to 0.82), but there was an increase in pain in the control (2.82; 95% CI 1.91 to 3.74) and sham (1.68; 95% CI 0.83 to 2.52) groups. This change was greater for the control and sham compared to the intervention group. There was no difference in venipuncture success between groups. No severe adverse events occurred. Minor adverse events were the same between groups.

CONCLUSION: Use of the J-Tip for children aged 1 to 6 years reduced venipuncture pain compared with vapocoolant spray or sham treatment.


B. US or near-infrared vascular imaging to guide peripheral IV catheterization in children: a pragmatic RCT.

Curtis SJ, et al. CMAJ. 2015 May 19;187(8):563-70.

BACKGROUND: Peripheral intravenous catheterization in children is challenging, and success rates vary greatly. We conducted a pragmatic randomized controlled trial to determine whether the use of ultrasound or near-infrared vascular imaging to guide catheterization would be more effective than the standard approach in achieving successful catheter placement on the first attempt.

METHODS: We enrolled a convenience sample of 418 children in a pediatric emergency department who required peripheral intravenous catheterization between June 2010 to August 2012. We stratified them by age (≤ 3 yr and over 3 yr) and randomly assigned them to undergo the procedure with the standard approach, or with the help of either ultrasound or near-infrared vascular imaging. The primary outcome was the proportion of patients who had successful placement of a catheter on the first attempt.

RESULTS: The rate of successful first attempts did not differ significantly between either of the 2 intervention groups and the standard approach group (differences in proportions -3.9%, 95% confidence interval [CI] -14.2% to 6.5%, for ultrasound imaging; -8.7%, 95% CI -19.4% to 1.9%, for near-infrared imaging). Among children 3 years and younger, the difference in success rates relative to standard care was also not significant for ultrasound imaging (-9.6%, 95% CI -29.8% to 10.6%), but it was significantly worse for near-infrared imaging (-20.1%, 95% CI -40.1% to -0.2%). Among children older than 3 years, the differences in success rates relative to standard care were smaller but not significant (-2.3%, 95% CI -13.6% to 9.0%, for ultrasound imaging; -4.1%, 95% CI -15.7% to 7.5%, for near-infrared imaging). None of the pairwise comparisons were statistically significant in any of the outcomes.

INTERPRETATION: Neither technology improved first-attempt success rates of peripheral intravenous catheterization in children, even in the younger group. These findings do not support investment in these technologies for routine peripheral intravenous catheterization in children.

13. Impact of relative contraindications to home management in ED patients with low-risk PE.

Vinson DR, et al. Ann Amer Thoracic Soc. 2015;12(5):666-673

Rationale: Studies of adults presenting to the emergency department (ED) with acute pulmonary embolism (PE) suggest that those who are low risk on the PE Severity Index (classes I and II) can be managed safely without hospitalization. However, the impact of relative contraindications to home management on outcomes has not been described.

Objectives: To compare 5-day and 30-day adverse event rates among low-risk ED patients with acute PE without and with outpatient ineligibility criteria.

Methods: We conducted a retrospective multicenter cohort study of adults presenting to the ED with acute low-risk PE between 2010 and 2012. We evaluated the association between outpatient treatment eligibility criteria based on a comprehensive list of relative contraindications and 5-day adverse events and 30-day outcomes, including major hemorrhage, recurrent venous thromboembolism, and all-cause mortality.

Measurements and Main Results: Of 423 adults with acute low-risk PE, 271 (64.1%) had no relative contraindications to outpatient treatment (outpatient eligible), whereas 152 (35.9%) had at least one contraindication (outpatient ineligible). Relative contraindications were categorized as PE-related factors (n = 112; 26.5%), comorbid illness (n = 42; 9.9%), and psychosocial barriers (n = 19; 4.5%). There were no 5-day events in the outpatient-eligible group (95% upper confidence limit, 1.7%) and two events (1.3%; 95% confidence interval [CI], 0.1–5.0%) in the outpatient-ineligible group (P = 0.13). At 30 days, there were five events (two recurrent venous thromboemboli and three major bleeding events) in the outpatient-eligible group (1.8%; 95% CI, 0.7–4.4%) compared with nine in the ineligible group (5.9%; 95% CI, 2.7–10.9%; P less than 0.05). This difference remained significant when controlling for PE severity class.

Conclusions: Nearly two-thirds of adults presenting to the ED with low-risk PE were potentially eligible for outpatient therapy. Relative contraindications to outpatient management were associated with an increased frequency of adverse events at 30 days among adults with low-risk PE.

14. Annals of EM: Brief Lit Reviews

A. What Is the Accuracy of Emergency Physician–Performed Ultrasonography for Deep Venous Thrombosis?

Take-home: Using bedside ultrasonography in carefully selected patients, emergency physicians can accurately diagnose lower extremity deep venous thrombosis.


B. Does Intravenous Magnesium Reduce the Need for Hospital Admission Among Adult Patients With Acute Asthma Exacerbations?

Take-home: Administration of intravenous magnesium sulfate may result in a modest reduction in hospital admissions among adult ED patients with acute asthma who have not responded to standard therapies.


15. Ethanol Alters the Cutoff for Abnormal Lactate and Base Deficit in Trauma Patients

A large retrospective study shows that moderately elevated lactate and base deficit values do not predict mortality in intoxicated patients.

Daniel J. Pallin, MD, MPH, Journal Watch Emerg Med 2015 May 15

Reviewing Gustafson ML et al. Am J Emerg Med 2015 May

In trauma patients, lactic acid or base deficit levels greater than 2 mmol/L predict higher mortality risk. To evaluate the influence of ethanol intoxication on these associations, researchers retrospectively reviewed data for 2482 patients admitted to a single trauma center between 2005 and 2014. Of these patients, 784 tested positive for ethanol.

In the ethanol-negative group, mortality was 2.6 times more likely in those with elevated lactate than in those without elevated lactate, and it was 1.9 times more likely in those with elevated base deficit than in their counterparts. However, in the intoxicated group, there was no significant relationship between either lactate or base deficit and mortality. Secondary analyses suggested that a lactate level over 4.45 mmol/L or a base deficit over 6.97 mmol/L predicted mortality in the ethanol-positive group.


16. The evaluation of suspected child physical abuse: New AAP Guidelines

Christian CW; AAP COMMITTEE ON CHILD ABUSE AND NEGLECT. Pediatrics. 2015 May;135(5):e1337-54.

Child physical abuse is an important cause of pediatric morbidity and mortality and is associated with major physical and mental health problems that can extend into adulthood. Pediatricians are in a unique position to identify and prevent child abuse, and this clinical report provides guidance to the practitioner regarding indicators and evaluation of suspected physical abuse of children. The role of the physician may include identifying abused children with suspicious injuries who present for care, reporting suspected abuse to the child protection agency for investigation, supporting families who are affected by child abuse, coordinating with other professionals and community agencies to provide immediate and long-term treatment to victimized children, providing court testimony when necessary, providing preventive care and anticipatory guidance in the office, and advocating for policies and programs that support families and protect vulnerable children.


17. Acute Appendicitis — Appendectomy or the “Antibiotics First” Strategy

Flum DR. N Engl J Med 2015; 372:1937-1943.

CASE
A 56-year-old man presents with a 2-day history of abdominal pain. The pain began centrally but has moved to the right lower quadrant of his abdomen in the past 6 hours. He has a body-mass index (the weight in kilograms divided by the square of the height in meters) of 33, a body temperature of 100°F (37.8°C), and a white-cell count of 11,500 per cubic millimeter. The right side of his lower abdomen is tender to palpation. A computed tomographic (CT) scan was ordered by his primary care physician after he was examined in the clinic, and the results are consistent with appendicitis. He has had three prior surgical procedures: an open Nissen fundoplication complicated by a pulmonary embolism and two incisional hernia repairs with mesh. After receiving the results of his CT scan, he found information online about doctors in Europe who are using antibiotics alone to treat appendicitis, and he asks specifically about that option. How would you manage this case? …

EXCERPTS BELOW
…CONCLUSIONS AND RECOMMENDATIONS
The patient described in the vignette has clinical symptoms and signs consistent with acute appendicitis, and the diagnosis was confirmed by diagnostic imaging. In the United States, the usual treatment recommendation for people with uncomplicated appendicitis is a prompt appendectomy. The laparoscopic approach is preferred to the open approach by most surgeons (owing to a lower incidence of surgical-site infection and a faster return for the patient to usual activities) in the absence of contraindications to laparoscopy. However, experience in Europe suggests that an antibiotics-first strategy is an alternative that warrants consideration, particularly in a patient who has had prior surgical complications and has a strong preference for avoiding appendectomy. Patients should understand that European randomized trials comparing this approach with appendectomy have shown that it is not associated with an increased risk of perforation or a higher rate of complications; however, these trials have also shown that as many as half the patients so treated will have early treatment failures, and all have a risk of recurrent appendicitis that may ultimately require appendectomy.

It remains to be determined whether the benefits of potentially avoiding an operation with the antibiotics-first approach are outweighed by the burden to the patient related to future appendicitis episodes, more days of antibiotic therapy, lingering symptoms, and uncertainty that may affect quality of life. This is especially true given that appendectomy, as performed in the United States, has a very favorable safety profile and typically involves a short hospitalization. Although appendectomy remains the recommended treatment for appendicitis, clinicians should inform appropriate patients about the evidence related to an antibiotics-first strategy, as well as the uncertainties. I recommend that, pending more information regarding the effectiveness of an antibiotics-first approach and the longer-term outcomes of this strategy, patients interested in considering an antibiotics-first approach should be encouraged to participate in clinical trials. When an antibiotics-first strategy is used outside a clinical trial, I would encourage treating physicians to include their experience in a patient registry

KEY CLINICAL POINTS
Appendicitis is the most common reason for emergency abdominal surgery, with a lifetime incidence of 7 to 14%.

As compared with open appendectomy, laparoscopic appendectomy is associated with a reduced risk of surgical-site infection, a faster return to function, and a reduced risk of subsequent bowel obstruction.

Several small, randomized trials comparing an antibiotics-first strategy (with appendectomy performed if patients do not have a response) with prompt appendectomy in patients with uncomplicated appendicitis showed no significant increase in complications with an antibiotics-first approach but also showed a substantial rate of crossover to surgery in the first 48 hours or appendectomy in the ensuing year.

Appendectomy is still recommended for most people with uncomplicated appendicitis, but patients should be informed about options, and an antibiotics-first strategy may be considered in those who have strong preferences for avoiding an operation or who have contraindications to surgery.

Link (subscription required): http://www.ncbi.nlm.nih.gov/pubmed/25970051

18. Intravenous Subdissociative-Dose Ketamine Versus Morphine for Analgesia in the Emergency Department: A Randomized Controlled Trial

Motov S, et al. Ann Emerg Med. 2015 Mar 26. [Epub ahead of print]’

STUDY OBJECTIVE: We assess and compare the analgesic efficacy and safety of subdissociative intravenous-dose ketamine with morphine in emergency department (ED) patients.

METHODS: This was a prospective, randomized, double-blind trial evaluating ED patients aged 18 to 55 years and experiencing moderate to severe acute abdominal, flank, or musculoskeletal pain, defined as a numeric rating scale score greater than or equal to 5. Patients were randomized to receive ketamine at 0.3 mg/kg or morphine at 0.1 mg/kg by intravenous push during 3 to 5 minutes. Evaluations occurred at 15, 30, 60, 90, and 120 minutes. Primary outcome was reduction in pain at 30 minutes. Secondary outcome was the incidence of rescue analgesia at 30 and 60 minutes.

RESULTS: Forty-five patients per group were enrolled in the study. The primary change in mean pain scores was not significantly different in the ketamine and morphine groups: 8.6 versus 8.5 at baseline (mean difference 0.1; 95% confidence interval -0.46 to 0.77) and 4.1 versus 3.9 at 30 minutes (mean difference 0.2; 95% confidence interval -1.19 to 1.46; P=.97). There was no difference in the incidence of rescue fentanyl analgesia at 30 or 60 minutes. No statistically significant or clinically concerning changes in vital signs were observed. No serious adverse events occurred in either group. Patients in the ketamine group reported increased minor adverse effects at 15 minutes post-drug administration.

CONCLUSION: Subdissociative intravenous ketamine administered at 0.3 mg/kg provides analgesic effectiveness and apparent safety comparable to that of intravenous morphine for short-term treatment of acute pain in the ED.

19. Ultrasound-guided hematoma block in distal radial fracture reduction: a randomised clinical trial.

Fathi M, et al. Emerg Med J. 2015 Jun;32(6):474-7.

OBJECTIVE: We compared the efficacy and safety of ultrasound-guided haematoma block with that of procedural sedation and analgesia in patients with acute distal radial fracture reduction pain control.

METHODS: This was a randomised clinical trial on adult patients conducted in two teaching hospitals. Patients received intravenous midazolam plus fentanyl in the procedural sedation and analgesia group, and fracture site injection of lidocaine 10% in the ultrasound guided haematoma block group. We measured pain scores before reduction, during reduction and 5, 10 and 15 min after reduction by a numeric rating scale, and patient and physician satisfaction by a four-level Likert scale. Time to discharge, early adverse effects and late complications were also compared.

RESULTS: We enrolled 160 patients with distal radial fracture and randomised 143 patients into two groups (after excluding 17 patients). Pain was effectively controlled in both groups. Pain scores had no statistically significant difference before and during reduction and 5 and 15 min after reduction in the procedural sedation and analgesia and ultrasound guided haematoma block groups. Patient and physician overall satisfaction were similar in the two groups. Time to discharge was significantly lower in the ultrasound guided haematoma block group. Four patients (5.5%) in the procedural sedation and analgesia group showed early adverse effects. No patient in either group showed any late complications.

CONCLUSIONS: Ultrasound guided haematoma block may be a safe and effective alternative to procedural sedation and analgesia.

20. Diagnostic Performance of Focused Cardiac Ultrasound Performed by Emergency Physicians for the Assessment of Ascending Aorta Dilation and Aneurysm

Nazerian P, et al. Acad Emerg Med. 2015 May;22(5):536-41.

OBJECTIVES: The diagnostic performance of transthoracic focused cardiac ultrasound (FoCUS) performed by emergency physicians (EP) to estimate ascending aorta dimensions in the acute setting has not been prospectively studied. The diagnostic accuracy and the interobserver variability of EP-performed FoCUS were investigated to estimate thoracic aortic dilation and aneurysm compared with the results of computed tomography angiography (CTA).

METHODS: This was a prospective single-center cohort study of a convenience sample of patients who underwent CTA in the emergency department for suspected aortic pathology. FoCUS was performed before CTA, and the maximum ascending aorta diameter evaluated in parasternal long-axis view. Aorta diameter less than 40 mm by visual estimation or by diameter measurement was considered normal. Measurements were recorded in all patients with aorta diameter ≥ 40 mm. Diagnostic accuracy of FoCUS for detection of aortic dilation (diameter ≥ 40 mm) and aneurysm (diameter ≥ 45 mm) were calculated considering the CTA result as reference standard. In a subgroup of patients, a second EP-sonographer performed FoCUS to evaluate interobserver agreement for the diagnosis of ascending aorta dilation.

RESULTS: A total of 140 patients were enrolled in the study. Ascending aorta dilation and aneurysm were detected with FoCUS in 50 (35.7%) and in 27 (17.8%) patients, respectively. Sensitivity and specificity of FoCUS were 78.6% (95% confidence interval [CI] = 65.6% to 88.4%) and 92.9% (95% CI = 85.1% to 97.3%), respectively, for ascending aorta dilation and 64.7% (95% CI = 46.5% to 80.2%) and 95.3% (95% CI = 89.3% to 98.4%), respectively, for ascending aorta aneurysm. Interobserver agreement of FoCUS was k = 0.82.

CONCLUSIONS: FoCUS performed by EP is specific for ascending aorta dilation and aneurysm when compared to CTA and appears a reproducible technique.

21. Say "ow" to help cope with pain

Exclamations such as "ouch," "ow," and "owie" seem to be common, spontaneous responses to sudden experiences of pain. But what motivates them? Why do they occur irrespective of whether sufferers are alone or in company?

The authors investigated whether vocalization helps alleviate pain and sought to discern potential underlying mechanisms. Participants immersed their hand into painfully cold water longer when saying "ow" than when doing nothing. Whereas button-pressing had a similar effect, hearing one's own or another person's "ow" did not. Thus, vocalizing in pain is not only communicative. Like other behaviors, it helps cope with pain, the authors conclude.


22. Case Series of Patients with Ruptured Abdominal Aortic Aneurysm

Taylor S, et al. West J Emerg Med. 2015 May;16(3):367-71.

INTRODUCTION: Traditionally, patients with suspected ruptured abdominal aortic aneurysm (rAAA) are taken immediately for operative repair. Computed tomography (CT) has been considered contraindicated. However, with the emergence of endovascular repair, this approach to suspected rAAA could be changing.

METHODS: We present retrospective data in a case series of 110 patients with rAAA. Patients were managed at a single tertiary medical center over a five-year period. At this site, there was an established multidisciplinary protocol in which patients with suspected rAAA undergo CT with consideration for endovascular aortic repair (EVAR).

RESULTS: Our results demonstrated a mortality of 30% with our institutional protocol for CT in suspected rAAA. Comparing patients who ultimately had EVAR with open repair, those able to have endovascular aneurysm repair (EVAR) had lower mortality, shorter hospital stays for survivors, and a greater likelihood of being discharged to home than those with open repair. While survivors were more likely to have had EVAR, surviving patients were younger, had a significantly lower creatinine at presentation, and required fewer blood transfusions than those who died.

CONCLUSION: Based on this case series, an institutional approach endorsing CT for presumed rAAA appears to be reasonable. Our results suggest that EVAR may be beneficial in appropriately-selected patients and that CT may potentially facilitate superior management options for patient care.


23. Micro Bits

A. Fecal transplants effective in 85% of patients with recurrent C. diff infection

A review study funded by the Department of Veterans Affairs found fecal transplantation successfully treated recurrent Clostridium difficile infection in 85% of cases and helped 55% of patients who did not respond to drugs. Researchers said, however, the available data is "low strength" and is inadequate to draft guidelines for determining ideal donors, identifying fecal preparation methods or recommending the best way to deliver the stool to patients.

The findings were published in Annals of Internal Medicine

B. Supplemental Temporary IVC Filters No Help in Anticoagulated PE Patients

No reduction in recurrence or mortality in randomized study.


C. Eleanor Roosevelt's last days: A bioethical case study

When Eleanor Roosevelt died in 1962, she was widely regarded as "the greatest woman in the world." Despite her celebrity, or more likely because of it, she had to endure a prolonged period of intense suffering and humiliation before dying, which was due in large part to her medical care. Her case reveals a great deal about the evolution of the bioethics of dying and concepts of end-of-life care in America.


D. Metabolic syndrome affects 35% of U.S. adults, study finds

Metabolic syndrome, a combination of health conditions including hypertension, waist measurements, high blood sugar and irregular cholesterol, is a key sign of heart disease and diabetes risk, according to a study in the Journal of the American Medical Association. Researchers found that in 2011 to 2012, 35% of adult Americans had metabolic syndrome. Among people 60 years old and older, 47% of people had metabolic syndrome, while 18% between ages 20 to 39 had the condition.


E. Report estimates 10% of children are diagnosed with ADHD

A report from the CDC says that 1 in 10 children and teenagers has been diagnosed with attention-deficit/hyperactivity disorder. Boys are diagnosed at about double the rate of girls. Hispanic children and teens are the least likely to be diagnosed with ADHD, and children from more affluent families are less likely to have an ADHD diagnosis than children from lower-income families.


F. Conditioned analgesia from known placebo

Belief in effective placebo treatment is widely thought to be critical for placebo analgesia. Many placebo responses appear to be mediated by expectations that are strengthened as treatment cues are reinforced with positive outcomes. Yet placebo effects may occur even when participants know they are receiving placebo. Can conditioned placebo analgesia persist in the absence of expectations? This report studied long (four days) vs. short (one day) conditioning to placebo treatment. After an initial placebo test, a "reveal" manipulation convincingly showed participants they had never received an active drug. Placebo analgesia persisted after the reveal in the long conditioning group only.


G. Concussion may affect children's academic performance

Researchers followed 349 students, ages 5 to 18, who had a concussion and found that 77% of those still recovering had difficulty taking notes and took longer to complete homework, while 88% experienced fatigue, headaches, had problems concentrating or found it difficult to understand lessons. The findings, published in Pediatrics, also showed students with severe head injuries were more likely to have the most academic problems.