Can J Emerg Med
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ABSTRACTObjective:To assess the current level of knowledge and practice patterns of emergency physicians regarding radiation exposure from diagnostic imaging modalities for investigating acute pulmonary embolism (PE). Methods:An online survey was sent to adult emergency physicians working at two academic tertiary care adult emergency departments (EDs) to determine imaging choices for investigating PE in various patient populations and to assess their current knowledge of radiation doses and risks. A retrospective chart review was performed for all adult patients who underwent computed tomographic pulmonary angiography (CTPA) and/or ventilation-perfusion (V/Q) scanning in the same EDs. ⋯ CTPA 12.1% [OR 4.8; 95% CI 2.4-9.4]). Conclusions:Although surveyed physicians possessed limited knowledge of radiation doses of CTPA and V/Q scans, they preferentially used the lower radiation V/Q scans in younger patients, particularly females, in both the survey vignettes and in clinical practice. This may reflect efforts to reduce radiation exposures at our institution.
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ABSTRACTObjective:To evaluate the efficacy and safety of a simple linear midazolam-based protocol for the management of impending status epilepticus in children up to 18 years of age. Methods:This is a descriptive, quality assessment, retrospective chart review of children presenting with the chief complaint of seizure disorder in the emergency department (ED) of a tertiary care pediatric hospital and a triage category of resuscitation or urgent from April 1, 2009, to August 31, 2011. In children with at least one seizure episode in the ED treated according to the linear protocol, three main outcomes were assessed: compliance, effectiveness, and complications. ⋯ Of the 42 patients treated with midazolam, 7 required either continuous positive airway pressure or intubation, and two patients were treated for hypotension. One patient died of pneumococcal meningitis. Conclusion:This simple linear protocol is an effective and safe regimen for the treatment of impending status epilepticus in children.
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ABSTRACTObjectives:Injection drug users (IDUs) often undergo procedural sedation and analgesia (PSA) as part of emergency department (ED) treatment. We compared adverse events (AEs) using a variety of sedation regimens. Methods:This was a retrospective analysis of a PSA safety audit in two urban EDs. ⋯ The AE rates were 0.0%, 8.5%, 9.2%, 12.0%, and 7.6%, respectively, with propofol having a significantly lower rate (Pearson coefficient 14.9, p = 0.007). The cardiovascular/respiratory AE rates were significantly different as well, with P, KP, and KF having the lowest rates (Pearson coefficient 13.3, p = 0.01). Conclusions:For IDU PSA, the overall AE rate was 6.5%, and propofol appeared to have a significantly lower rate.
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ABSTRACTBackground:Many patients with suspected scaphoid fractures but negative radiographs are immobilized for ≥ 2 weeks and are eventually found to have no fracture. Bone scans are reportedly 99% sensitive for these injuries if done ≥ 72 hours postinjury.Objective:The purpose of this study was to determine if early bone scans would allow for shorter cast immobilization periods in patients with suspected scaphoid fractures.Methods:Twenty-seven patients with clinically suspected scaphoid fractures and negative radiographs were randomized to early diagnosis (bone scan within 3-5 days; n = 12) or traditional diagnosis (radiographs 10-14 days postinjury; n = 15). The primary outcome was number of days immobilized in a cast.Results:The mean number of days immobilized was 26 in the traditional group and 29 in the bone scan group. Overall, 6 patients had scaphoid fractures (2 in the traditional diagnosis group and 4 in the bone scan group; p > 0.05), and 8 had other types of fractures. These other types of fractures included four distal radius fractures, two triquetral fractures, one trapezoid fracture, and one hamate fracture. There was no significant difference in the number of other types of fractures between groups. The Kaplan-Meier survival analysis using the log-rank test revealed that there was no statistically significant difference between days immobilized between the radiograph and bone scan groups (p = 0.38). ⋯ The current study suggests that the use of bone scans to help diagnose occult scaphoid fractures does not reduce the number of days immobilized and that the differential diagnosis of occult scaphoid fractures should remain broad because other injuries are common.
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ABSTRACTBackground:Determining the appropriate disposition of emergency department (ED) syncope patients is challenging. Previously developed decision tools have poor diagnostic test characteristics and methodological flaws in their derivation that preclude their use. We sought to develop a scale to risk-stratify adult ED syncope patients at risk for serious adverse events (SAEs) within 30 days. ⋯ The final score calculated by addition of the individual scores for each variable (range 0-10) was found to accurately stratify patients into low risk (score < 1, 0% SAE risk), moderate risk (score 1, 3.7% SAE risk), or high risk (score > 1, ≥ 10% SAE risk). Conclusion:We derived a risk scale that accurately predicts SAEs within 30 days in ED syncope patients. If validated, this will be a potentially useful clinical decision tool for emergency physicians, may allow judicious use of health care resources, and may improve patient care and safety.