Introduction: Transcutaneous cardiac pacing (TCP), a skill taught in Advanced Cardiovascular Life Support (ACLS) courses, is recommended to treat unstable bradycardia. Training manikins currently available fail to reproduce key features of TCP and might be suboptimal to teach this procedure.The objective of this study was to measure the impact of a modified high-fidelity manikin on junior residents’ TCP competency during an ACLS course. We hypothesized that the use of this high-fidelity manikin improves junior residents’ performances. Methods: This prospective cohort study was conducted at the Université de Montréal in July 2015 and 2016. First-year residents undergoing their mandatory ACLS course were enrolled. The control group (2015) received the traditional curriculum, which includes hands-on teaching on Advanced Life Support manikins. The intervention group (2016) received a similar curriculum, but used a modified high-fidelity manikin that reproduces key features of TCP (e.g. use of multifunction pads, TCP induced patient twitching, ECG artifacts). Cohorts were tested with a simulation scenario requiring TCP. Performances were graded based on six critical tasks: turns on pacer function, applies multifunction pads, recognizes TCP is ineffective, achieves captures, verifies mechanical capture and prescribes sedation. Our primary outcome was successful use of TCP defined as having completed all tasks. Secondary outcomes were the success rates for each task. These were compared using Pearson’s chi-squared test. We anticipated that the success rate of TCP would increase from 20% to 50%. To obtain a power of more than 90%, 48 participants were needed in both cohorts. Results: A total of 50 residents were recruited in both cohorts. No resident that received the traditional curriculum was able to successfully establish TCP while 18 residents trained on the modified high-fidelity manikin succeeded (0 vs 36%, P<0.001). Furthermore, the latter were more likely to recognize when pacing was inefficient (12 vs 86%, P<0.001), obtain ventricular capture (2 vs 48%, P<0.001), and check for a pulse rate to confirm capture (0 vs 48%, P<0.001). Conclusion: Successful use of TCP is a difficult skill to master for junior residents. A modified high-fidelity manikin during ACLS training significantly improves their ability to establish effective pacing.

Introduction: Fast track (FT) implementation in emergency departments (ED) has shown a decrease in patient wait times, length of stay (LOS), left without being seen rates, and has increased patient satisfaction. The objective of this study was to analyze the demographics and presenting complaints of patients presenting to FT in Calgary EDs using local administrative databases to understand the current selection of FT patients, as well as to uncover potential throughput efficiencies through LOS analysis. Methods: Sunrise Clinical Manager data was pulled from the Foothills Medical Center (FMC), Peter Lougheed Center (PLC), and Rockyview General Hospital (RGH) EDs between October 2015 and September 2016. Based on consensus achieved by the Calgary FT-Minor Treatment Sub-committee, data was descriptively analyzed based on the following criteria: (1) triage profiles of the Calgary ED sites; (2) site admission rates by complaint, Canadian Triage and Acuity Scale (CTAS), vitals, and age; (3) LOS for orthopedic patients admitted from FT/Minor; and, (4) LOS in FT for non-admitted back pain patients. Results: A total of 53911 patients were triaged to FT, with 16224 patients triaged to FMC, 18299 to PLC, and 19388 to RGH. 6.9% of FT patients were admitted to hospital at FMC, 4.8% at PLC and 4.8% at RGH. 14.4% of patients at FMC, 18.3% at PLC and 17.6% at RGH were CTAS 2; 40.9% of patients at FMC, 46.2% at PLC and 37.9% at RGH were CTAS 3; 34.0% of patients at FMC, 27.8% at PLC and 33.3% at RGH were CTAS 4; 10.7% of patients at FMC, 7.7% from PLC and 11.2% for RGH were CTAS 5. For FT patients 80 years or older, 10.4% were admitted at FMC, 13.1% at PLC and 9.4% at RGH. The top FT presenting complaints at all sites were lower extremity injury, upper extremity injury, and laceration/puncture. The annual FT bed hours for patients admitted to orthopedic surgery (consultation request to time of orthopedic admission) was 802.3 hours at FMC, 441.1 PLC and 705.1 from RGH. The annual FT bed hours for patients with non-admitted back pain (FT bed to time of discharge) was 2144.3 hours from FMC, 3367.9 from PLC and 1134.9 from RGH. Conclusion: The efficiency of FT is based on streamlining low acuity patients with an expected rapid discharge from hospital. The results of this investigation will be presented to the FT-Minor Treatment Sub-committee in order to utilize current admission rates, patient profiles, and aggregate LOS to potentially improve throughput.

Introduction: Syncope is responsible for up to 5% of emergency department visits. Vasovagal syncope (VVS) is the most common subtype and can have significant quality of life implications as it is often recurrent. Clinicians treating VVS have limited treatment options available to them and often struggle with prognostication. The aim of our study was to identify patient-specific determinants of VVS improvement or cessation. Methods: Patients (pts) from the Prevention of Syncope Trials (POST) 1 and 2 were included in this study. All patients had VVS according to tilt table testing or a diagnostic point score. Patients had fainted ≥1 time in the previous year and all were followed for up to 1 year after enrollment. Data are presented as median (IQR). Complete responders (CR) did not faint in follow-up; partial responders (PR) fainted ≥1/year less than prior year but did not stop; and non-responders (NR) did not improve or stop. Results: There were 392 patients: 126 males, median age 34 (23,50) who had fainted for 10 (3,22) years and followed for a median of 363 (148,376) days. There were 225 CR (57%), 120 PR (31%) and 47 NR (12%). PR subjects were younger: 27 (24,33) years compared to CR (36 (32,42)) years and NR (36 (29,47)) years (p<0.05). Receiver operator characteristic analysis showed age predicted PR (AUC=0.62). Lifetime fainting frequency was 0.67 (0.14,2.00) faints per year, increasing to 4 (2,10) faints in the pre-year and decreasing to 0 (0,1.9) faints in the post-year (p<0.0001). Pts had similar syncope frequency in the distant past (PR, 1.14 faints/year; CR, 0.68 faints/year; NR, 0.58 faints/year) but PR pts worsened markedly prior to enrollment. PR subjects fainted much more in the prior year: 10 (6,18) faints compared CR (3 (2,3) faints, p<0.0001) and NR (2 (2,4) faints, p<0.05). Receiver operator characteristic analysis showed prior year faints predicted PR well (AUC=0.81). There was no significant interaction with treatment (metoprolol in POST 1, fludrocortisone in POST 2). Conclusion: After specialist consultation, 57% of VVS patients stop fainting and 31% improve incompletely without a significant treatment effect. Patients who will improve incompletely can be accurately selected based on younger age and more frequent syncope. Older patients with less frequent syncope are 83% likely to stop fainting. These findings will help counsel pts and select candidates for medical therapy.

Introduction: Acute Mountain Sickness (AMS) is a high-altitude medical emergency that requires prompt treatment. If left untreated AMS can progress to high-altitude cerebral edema or pulmonary edema, both of which can be fatal. As the popularity of high altitude trekking increases in the Himalayas we were interested in determining what rates of AMS are on popular routes in this region. Methods: AMS was diagnosed using a standardized Lake Louise Symptom Score (LLSS) where scores 3-5 denoted mild AMS and >5 denoted severe AMS. Forms were distributed to trekkers prior to departure and symptoms scores were determined daily. Data on medical history and patient demographics were also collected. All data are expressed as mean ±SEM. Results: Preliminary results are reported from N=17 (4 female) participants. Mean age was 43.7±3.9y. Most subjects, 68.8%, had trekked above 2500 m in the past. Only 6.25% reported having no knowledge of AMS, with the others having limited or expert knowledge. 25% of subjects had previously suffered from AMS. Most subjects, 82.4%, took prophylactic AMS medication, acetazolamide; at a dose of 250 mg/d. Subjects trekked at a mean altitude of 3650±85 m and ascended to a maximum altitude of 5012±103 m. The mean LLSS was 1.48±0.31 with a maximal LLSS of 4.76±0.75. Within our sample, 70.86% suffered from AMS at some point during their trek. Of those who suffered from AMS, the mean number of days affected was 3.17±0.61, and of those with severe AMS, mean number of days affected was 2.14±0.7. Conclusion: Over 70% of trekkers to the Himalayas experience AMS for an average of 3d, despite the use of prophylactic medication that most participants take. Almost 95% of trekkers have working knowledge of AMS and most have prior experience trekking at high-altitude. Given the dangers of high altitude trekking, pre-departure education for patients, especially those with chronic diseases, alongside prophylactic medication for AMS may help mitigate the risk.

Introduction: The social determinants of health (SDoH) can play a significant role in a person’s overall wellbeing. This is especially true for adults with mental illness and mental health disorders. In this study, we describe the SDoH of patients presenting to an academic, inner-city emergency department (ED) with an acute mental health complaint (AMHC). Methods: We prospectively identified and enrolled a convenience sample of patients presenting to an ED with an annual census of 85,000 visits. Participants provided informed written consent, and completed a questionnaire package containing questions related to demographics and SDoH. As well, participants were asked to complete four mental health, quality of life, and recovery validated patient-reported outcome measures. Results: A total 108 participants were enrolled in this study, of which 65% were male, aged 37.5 years (IQR 26.7-50.3), 56% Caucasian, and 22% Aboriginal. Depression was the primary diagnosis reported by 55% of participants, with 58.9% meeting the PhQ-9 cutoff for moderate-severe depression. The highest level of educational achievement for 44% of participants was high school or less, with 75% reporting being unemployed. Almost half (45%) reported engaging in less than two hours of structured activity each week. Thirty eight percent of participants reported living in their own apartment, with 25% reporting being homeless and 17% living in a single-room housing unit. The majority of participants (56%) sampled were not satisfied with their housing, and 67% were actively looking for new housing. Sixty percent of participants reported smoking cigarettes daily and 40% reported weekly cannabis use. A total of 11% of the sample reported that they did not have access to clean drinking water; 35% worried that their food would run out, and 47% reported cutting the size of meals due to a lack of money. Conclusion: This study lends evidence towards the circumstances in which patients presenting to the ED with an AMHC live and work. A considerable proportion of patients reported homelessness or being marginally housed, lack access to clean drinking water and sufficient food, and high rates of unemployment. Mitigating the effects of harmful social determinants is critical for optimal health of this population. Future work is needed to clarify the role of the ED in the surveillance, screening, and intervention of SDoH for this vulnerable patient group.

Introduction: Emergency department (ED) over-crowding and increased wait times are a growing problem. Many interventions have been proposed to decrease patient length of stay and increase patient flow. Early disposition planning is one method to accomplish this goal. In this study we developed statistical models to predict patient admission based on ED administrative data. The objective of this study was to predict patient admission early in the visit with goal of preparation of the acute care bed and other resources. Methods: Retrospective administrative ED data from the Thunder Bay Regional Health Sciences Centre was obtained for the period May 2014 to April 2015. Data were divided into training and testing groups with 80% of data used to train the statistical models. Logistic regression models were developed using administrative variables (i.e., age, sex, mode of arrival, and triage level). Model accuracy was evaluated using sensitivity, specificity, and area under the curve measures. To predict hourly bed requirements, the probability of admission was summed to calculate a pooled bed requirement estimate. The estimated hourly bed requirement was then compared to the historical hourly demand. Results: The logistic regression models had a sensitivity of 23%, specificity of 97%, and an area under the curve of 0.78. Although, admission prediction for a particular individual was satisfactory, the hourly pooled probabilities showed better results. The predicted hourly bed requirements were close to historical demand for beds when compared. Conclusion: I have shown that the number of acute care beds required on an hourly basis can be predicted using triage administrative data. Early admission bed planning would allow resources to be managed more effectively. In addition, during periods of hospital over capacity, managers would be able to prioritize transfers and discharges based on early estimates of ED demand for beds.

Introduction: Diagnosing pulmonary embolism (PE) in the emergency department can be challenging due to non-specific signs and symptoms; this often results in the over-utilization of CT pulmonary angiography (CT-PA). In 2013, the American College of Chest Physicians identified CT-PA as one of the top five avoidable tests. Age-adjusted D-dimer has been shown to decrease CT utilization rates. Recently, clinical-probability adjusted D-dimer has been promoted as an alternative strategy to reduce CT scanning. The aim of this study is to compare the safety and efficacy of the age-adjusted D-dimer rule and the clinical probability-adjusted D-dimer rule in Canadian ED patients tested for PE. Methods: This was a retrospective chart review of ED patients investigated for PE at two hospitals from April 2013 to March 2015 (24 months). Inclusion criteria were the ED physician ordered CT-PA, Ventilation-Perfusion (VQ) scan or D-dimer for investigation of PE. Patients under the age of 18 were excluded. PE was defined as CT/VQ diagnosis of acute PE or acute PE/DVT in 30-day follow-up. Trained researchers extracted anonymized data. The age-adjusted D-dimer and the clinical probability-adjusted D-dimer rules were applied retrospectively. The rate of CT/VQ imaging and the false negative rates were calculated. Results: In total, 1,189 patients were tested for PE. 1,129 patients had a D-dimer test and a Wells score less than 4.0. 364/1,129 (32.3%, 95%CI 29.6-35.0%) would have undergone imaging for PE if the age-adjusted D-dimer rule was used. 1,120 patients had a D-dimer test and a Wells score less than 6.0. 217/1,120 patients (19.4%, 95%CI 17.2-21.2%) would have undergone imaging for PE if the clinical probability-adjusted D-dimer rule was used. The false-negative rate for the age-adjusted D-dimer rule was 0.3% (95%CI 0.1-0.9%). The false-negative rate of the clinical probability-adjusted D-dimer was 1.0% (95%CI 0.5-1.9%). Conclusion: The false-negative rates for both the age-adjusted D-dimer and clinical probability-adjusted D-dimer are low. The clinical probability-adjusted D-dimer results in a 13% absolute reduction in CT scanning compared to age-adjusted D-dimer.

Introduction: Emergency Medicine Physicians have been incorporating Point-of-Care Ultrasound (POCUS) into their practice for over twenty years. Only recently has its use become more widespread in the practice of Pediatric Emergency Medicine (PEM). Recent guidelines have described the scope of applications for PEM physicians. However, no consensus exists as to which applications should be prioritized and routinely taught to PEM fellowship trainees and therefore expected of PEM graduates as they enter practice. The PEM POCUS Network, a multinational group of Physicians with POCUS expertise formed in 2014, set out to reach expert consensus as to which applications should be incorporated into PEM fellowship training curricula. Methods: A multinational group of PEM POCUS experts was recruited from the PEM POCUS Network via a screening process that identified PEM physicians who have performed over 1000 pediatric POCUS scans and met any of one of the following criteria: having 3 years or more experience teaching POCUS to PEM fellows, being local academic POCUS leaders or had completed a dedicated PEM POCUS fellowship. These experts rated each of the 60 possible PEM POCUS applications using a modified Delphi consensus building technique for their importance in inclusion into a PEM Fellowship curriculum. Consensus was reached when >80% of respondents agreed to include or exclude each item. Results: In the first round, 66 out of 92 (72%) PEM POCUS Network members responded to the survey email, of whom 45 met expert criteria and completed the first round. During round 1, consensus was reached to include 18 of the 60 applications in a PEM fellowship curriculum and to exclude 2 applications from a PEM fellowship curriculum. Eighty-two percent (37 /45) of the experts completed Round 2 where 40 items were rated; consensus was reached to include 3 additional applications and exclude 5 applications. The decision was made not to carry on with future rounds after this stage, since no significant changes were observed between the two rounds, with regard to items that had not reached consensus. Conclusion: This project of the PEM POCUS Network reached consensus on 21 applications that should be included in a PEM Fellowship curriculum. This project will have significant impact on how PEM fellowships teach POCUS to their trainees.

Introduction: In its prospective cohorts of independent seniors with minor injuries, the CETIe (Canadian Emergency Team Initiative) has shown that minor injuries trigger a spiral of mobility and functional decline in 18% of those seniors up to 6 months post-injury. Because of their effects on multiple physiological systems, multicomponent mobility interventions with physical exercises are among the best methods to limit frailty and improve mobility & function in seniors. Methods: Pilot clinical trial among 4 groups of seniors, discharged home post-ED consultation for minor injuries. Interventions: 2x 1 hour /week/12 weeks with muscle strengthening, functional and balance exercises under kinesiology supervision either at home (Jintronix tele-rehabilitation platform) or at community-based programs (YWCA, PIED) vs usual ED-discharge (CONTROL). Measures: Functional Status in ADLs (Older American Ressources Scale); Global physical & social functioning (SF-12 questionnaire), physical activity level (RAPA questionnaire) at initial ED visit and at 3 months. Results: 135 seniors were included (Controls: n=50; PIED: n=28; Jintronix: n=27; YWCA: n=18). Mean age was 72.6±6.2 years, 45% were prefrail, 86% and 8% had a fall or motor vehicle-related injuries (e.g. fractures: 30%; contusions: 37%). Intervention could start as early as 7 days post-injury. Seniors in interventions (Home, YWCA or PIED) maintained or improved their functional status (84% vs 60%, p≤0.05), their physical (73% vs 59%, p=0.05) and social (45% vs 23%, p≤0.05) functioning. While 21% of CONTROLs improved their physical activity level three months post-injury, 46% of seniors in intervention did (p≤0.05). Conclusion: Exercises-based interventions can help improve seniors’ function and mobility after a minor injury.

Introduction: Patient satisfaction in the emergency department (ED) has been shown to be associated with patient compliance, likelihood to return, and likelihood to recommend the ED. Understanding the factors that affect patient satisfaction in the ED is important but remains poorly understood. This scoping review consolidates the information from the available literature to offer insight into which key factors influence patient satisfaction. Methods: A literature search using initial criteria identified 683 articles. These titles were subjected to inclusion/exclusion criteria and their relevance was independently reviewed by two authors. Consensus was reached on 24 articles to be included, and these were then classified according to study design (class I=observational studies, class II=focus group/qualitative studies, class III=reviews), as well as multiple other factors (ED type, volume of patients, sample size, population, type of study, methodology, study measures, statistical analysis, reliability and conclusions). Using these factors, 25 different ED care attributes were examined in the primary literature, and then narrowed to the 6 most commonly studied factors with 3 categories (wait times, communication/information received in the ED, and interpersonal skills of staff). Results: The impact of wait times (WT) on patient satisfaction in the ED was addressed in 58% of the articles and various studies have found that longer perceived WTs (the length of WTs as reported by patients) are associated with poorer patient satisfaction. Information delivery demonstrated statistically significant associations to both patient satisfaction and the likelihood of a positive recommendation. Interpersonal skills of the staff also demonstrated a strong association with patient satisfaction. Conclusion: The most common factors affecting patient satisfaction in the ED can be categorized under wait times, communication, and the interpersonal skills of the staff. However, the literature in this area is weak, and well-designed comparative studies of the relative importance of each of these factors are necessary to support evidence-based policy making and ultimately improve patient satisfaction.

Introduction: Acute non-variceal upper gastrointestinal bleeding (NVUGIB) is a common presentation to the Emergency Department (ED) associated with significant mortality and morbidity. Recent evidence suggests that overt-transfusion is associated with poor patient outcomes and that stable patients above a hemoglobin (hgb) above 70 g/L should be transfused judiciously. This retrospective health records review aims to determine the proportion of NVUGIB patients with hemoglobin greater than 70 g/L who were still appropriately transfused based on clinical parameters. Methods: A retrospective review was conducted on randomly selected patients that presented to one of two major tertiary hospitals with a primary diagnosis of NVUGIB who received blood products, despite a presenting hemoglobin >70 g/L. Standardized case report forms were developed through chart abstraction using a pilot-tested template. The appropriateness of transfusion was then adjudicated separately by a trained medical student and an emergency physician; discrepancies were resolved by discussion. Results: Following independent review of the charts, agreement was met on 94% (45/48) of the charts and after collective discussion 100% consensus was reached and all 48 patients’ transfusion appropriateness and categorized into one of three groups: Appropriate, Potentially avoidable, and clearly avoidable. Only in 22.9% (11/48) of the cases was transfusion deemed to be clearly avoidable while emergency physicians appropriately transfused 45.8% (22/48) of patients based on clinical status and other factors. In 31.3% (15/48) of the cases, transfusion was potentially avoidable in favor of other management options. We calculated the mean GBS for the appropriate, potentially avoidable, and clearly avoidable categories yielding 12.8, 12.7, and 10.2 respectively. Mortality occurred in 2 of the 48 cases (4%). Conclusion: In most instances, emergency physicians are effectively integrating hemoglobin thresholds and clinical status to determine if a patients with NVUGIB and hgb >70 require blood products.

Introduction: In the context of a shrinking healthcare budget, poor physician cost awareness, and continued over-utilization of low-value tests in the emergency department, we re-designed our computerized order entry system to reduce the use of coagulation testing. Methods: A hospital-based prospective pre-post analysis following de-bundling of INRPTT testing in two academic hospital emergency departments (annual visits 140,000). All participants aged 18 years or older undergoing evaluation and/or treatment at either of during the period of August 1, 2015 to July 24, 2016 were included. Primary outcome is coagulation testing utilization rates and associated costs. Results: Unbundling INR and aPTT testing resulted in significantly decreased bundled INRPTT testing relative to baseline (INRPTT tests per patient per day: 0.60 [95% CI: 0.57-0.62] vs. 0.98 [95% CI: 0.98-0.99], p=0.000), with significantly increased targeted testing (INR tests per patient per day: 0.39 [95% CI: 0.37-0.42] vs. 0.00 [95% CI: 0.00-0.01], p=0.000; PTT tests per patient per day: 0.33 [95% CI: 0.30-0.36] vs. 0.01 [95% CI: 0.00-0.01], p=0.000). As a result of unbundling, there was a significant decrease in costs associated with coagulation testing relative to baseline (Cost per day: $958.52 [INRPTT $592.78+INR $183.91+PTT $181.83] vs. $1,074.50 [INRPTT $1,069.76+INR $2.06+PTT $2.68], p=0.000), realizing estimated daily and yearly savings of $115.98 and $42,332.70, respectively. Conclusion: Compared to baseline practice patterns, unbundling coagulation testing resulted in the reduction of coagulation testing suggesting system design and user workflows to be an integral factor to provider practice patterns. Given the significant cost-savings, we recommend institutions carefully re-evaluate their system design and user workflows to optimize emergency department laboratory utilization.

Introduction: Emergency department (ED) visits for mental health and addiction related complaints are common and appear to be increasing. It is believed these patients come to the ED requiring urgent assessment either because they do not have a primary care or psychiatric healthcare provider or access to their provider is not available in a timely fashion. The objective of this study was to describe healthcare utilization in the previous 12 months by patients presenting to the ED with a mental health complaint. Methods: Between April-November 2016, a convenience sample of adult (≥18 years) patients presenting to an academic ED (annual census 65,000) with a mental health and/or addictions complaint were invited to complete a paper-based survey to determine their usage of ten different mental healthcare resources over the previous 12 months. The questionnaire was pilot-tested and peer-reviewed for feasibility and comprehension. Results: Of the 134 patients who completed the survey, mean (SD) age was 37.9 (15.7) years and 64 (47.8%) were male. Only 7 (5.2%) patients did not access any mental health resource in the previous 12 months, and the most commonly accessed resource was hospital EDs (102, 76.1%), with 24 (23.5%) of these patients using the ED at least 6 times. Patients also accessed a variety of other mental health resources, with 28 (20.9%) seeing their family physician, 20 (14.9%) seeing their psychiatrist/psychologist, and 61 (45.5%) seeing both in the previous 12 months. Only 6 (5.9%) patients used the ED exclusively for a mental health related complaint. By comparison, respondents accessed other specific mental health resources such as crisis centres (19, 14.2%), helplines (34, 25.4%), and peer-support groups (24, 17.9%) less often. Conclusion: These findings suggest that the ED is the most commonly used mental health resource for this population. However, these patients also frequently access family physicians and psychiatrists/psychologists, with community resources such as crisis centres, helplines, and peer-support being used less often. This suggests that lack of timely access to other mental health resources may be the primary motivation for accessing the ED.

Introduction: The 2007 SAEM Knowledge Translation consensus conference proposed areas of research in evidence-based clinical algorithms (EBCAs) using clinical decision rules (CDRs) and practice guidelines (CPGs). This project sought to explore the evidence awareness and utilization of various clinical decision rules (CDRs) in emergency medicine (EM) practice. This project sought to explore the evidence awareness and utilization of various clinical decision rules (CDRs) in emergency medicine (EM) practice. Methods: An international survey was administered via international EM organizations using modified Dillman methods. Categories of CDRs included imaging (7), infections (3), neurology (2), venous thromboembolism (VTE; 2), and other (2). Evidence levels were queried using JAMA User’s Guide CDR rating scales (Levels I-IV). Confidence with supporting evidence and utilization of CDRs in practice were assessed on 7-point Likert scales. Correlation of evidence understanding and practice utilization were calculated using Spearman rho methods. Results: The majority of respondents (n=378) were Canadian (72%), <15 years full practice (64%), residency trained (90%), and trained in CDR methods (73%). Evidence ratings were deemed high for all CDRs, although confidence in evidence ratings and practice utilization were more variable for specific rules. Comfort with evidence ranking and utilization in clinical practice were highly correlated (ρ<0.0002). Conclusion: Among Canadian residency CDR trained physicians, evidence ranking is strongly correlated with use in self-reported clinical practice. There is insufficient data from non-Canadian respondents to draw firm correlations. Their remains opportunity to fully disseminate high quality CDRs and encourage incorporation into EBCA practice.

Introduction: There is strong evidence that socio-economic factors such as income, housing and ethnicity are linked to health outcome disparities for emergency department (ED) patients. However, lack of real-time patient data has limited our ability to identify, understand and address health disparities. During a 14-week period, we assessed the feasibility and acceptability of the systematic collection of patient-level equity data in a busy tertiary care urban ED. Methods: We assessed feasibility by directly observing impact on registration time, percentage of patients on which data was collected, and ambulance patient data collection. We also assessed acceptability to patients, registration staff and clinicians through structured interviews of patients systematically sampled, focus group and surveys of registration staff and survey of clinicians. Results: Over the course of the study, equity data was collected on 2017 patients. Capture rate peaked in week 7 with 51% of eligible patients offered the equity questions and 30% answering. Average patient registration time increased from 215 seconds to 345 seconds (60%). Data collection with ambulance patients did not appear feasible. Patients (n=30) reported being comfortable with most questions except income (47% comfortable). 93% believed it could improve health services. However, a small number of patients voiced concern that the data could result in discrimination. Registration staff required sustained support and engagement, but some continued to feel uncomfortable with offering the questionnaire to some patients. Conclusion: Large scale collection of equity data is feasible but requires additional resources and sustained staff and patient support. Patient participation rate is likely to remain relatively low and is likely to underestimate disadvantaged groups. Data collection at multiple points within an institution may improve capture rate.

Introduction: Excessive consumption of alcohol is associated with harm and responsible for up to 30% of emergency department (ED) visits. ED visits and length of stay (LOS) related to alcohol intoxication have increased over the last decade. The objective of this study was to compare the ED LOS of alcohol intoxicated and non-alcohol intoxicated patients presenting to the ED with acute head injury. Methods: This was a nested cohort analysis of patients screened for enrollment in a randomized controlled trial assessing minor traumatic brain injury (MTBI) discharge instructions in the ED of an academic tertiary care hospital (annual census 65,000). Patients aged 18 to 64 years presenting to the ED with a Canadian Emergency Department Information System (CEDIS) chief complaint of a head injury or suspected concussion occurring within 24 hours were eligible for study inclusion. Patients were identified as acutely intoxicated by their treating clinical providers. ED LOS for patients acutely intoxicated and those not intoxicated was compared using a Mann-Whitney U test using the Hodges-Lehmann method. Proportional differences were assessed using chi-square statistics. Results: A total of 164 patients were included in the analysis, 46 (28.0%) intoxicated and 118 (72.0%) not intoxicated. Median (IQR) ED LOS was 2.9 (1.5, 6.6) hours for intoxicated and 1.8 (1.3, 2.9) hours for non-intoxicated patients (Δ1.1 hours; 95% CI: 0.4, 1.8). Arrival by ambulance was higher in the intoxicated (73.9%) compared to the non-intoxicated (29.7%) group (Δ44.3%; 95% CI: 27.6, 57.1). Patients were more likely to have experienced assault in the intoxicated (34.8%) compared to the non-intoxicated (6.8%) group (Δ28.0%; 95% CI: 14.5, 42.8). There no difference in the proportion of patients who arrived after daytime hours, had a brain computed tomography, received analgesia in the ED, had another traumatic injury or had a history of psychiatric illness. Conclusion: One third of patients screened for a randomized controlled trial for MTBI were deemed ineligible for study inclusion due to acute alcohol intoxication. Alcohol intoxication was associated with prolonged ED LOS. Future studies specifically aimed at identifying factors that impact care on this frequent ED patient population are needed.

Introduction: Social desirability bias is a systematic error in self-report measures resulting from the desire of respondents to avoid embarrassment and project a favourable image of themselves to others. This bias may decrease the accuracy of self-reported health outcomes collected in health research compromise the validity of research findings. This study compared outcomes obtained by patient self-report vs. the same outcomes after undergoing verification and external adjudication, in trial involving patients with acute asthma. Methods: Cross-sectional analysis of outcome data obtained in a randomized controlled trial conducted in 6 Canadian emergency departments (ED). Adult patients were allocated to receive usual care (UC), opinion leader [OL] guidance to their primary care provider (PCP), or OL guidance+nurse case-management [OL+CM] for patients (NCT01079000). Asthma relapses and PCP follow-up visits were blindly assessed through patient self-report 30 and 90 days after their ED presentation for acute asthma. Each reported event was verified through the provincial electronic medical record, the ED Information Systems, and by calling the PCPs’ offices. Two study investigators, blinded to the study interventions, independently reviewed and adjudicated the verified outcomes. Disagreements were resolved by consensus prior to un-blinding. Results: Overall, 367 patients were enrolled; more were female (64%) and the median age was 28 years. Overall, patient follow-up was obtained in 85% of cases. The proportion of asthma relapses occurring within the first 90 days were lower when considering patient self-report than when considering the adjudicated outcomes (17%[39/227] vs. 19%[70/367]). The proportion of PCP follow-up visits occurring within the first 30 days were higher when considering patient self-report than when considering the adjudicated outcomes (47%[139/290] vs. 40%[146/367]). The pattern was similar, regardless of the arm of the study (UC vs. OL vs. OL+CM arms); outcome disagreement did not influence the direction of magnitude of the treatment effect. Conclusion: Social desirability bias could have influenced the outcomes obtained by patient self-report in this ED-based study. The direction of the bias was the same for both outcomes; however, the variation did not change the study results. This bias may play a role in studies with smaller sample sizes.

Introduction: Domestic violence (DV) rates in smaller cities have been reported to be some of the highest in Canada. It is highly likely that emergency department staff will come across victims of intimate partner violence (IPV) in their daily practice. Elsewhere we have found low rates of IPV documentation as well as underutilization of current tools in the ED. The purpose of this study is to describe ED staff awareness and knowledge surrounding IPV, currently accepted screening questions, and available screening tools. Methods: To assess awareness and knowledge, a cross-sectional online survey was distributed to ED staff (LPNs, NPs, Physicians, Residents, RNs) via staff email lists three times between July and October 2016, with a response rate of 45.9% (n=55). The primary outcomes were correct identification of appropriate IPV questions. Secondary outcomes included awareness of screening tools (HITS, WAST, PVS, AAS), whose role it is to question patients, and whether or not formal training has been received. Results: When asked to identify recommended questions for asking about IPV, staff were more likely to choose screening questions (75.3%; 95% CI 69.3% to 80.6%) compared to questions that are not recommended (23.8%; 95% CI 19.4% to 30.7%). However, 87.3% of respondents were not aware of current screening tools. 49.1% believed that all patients with typical injuries (ex. facial injury), should have further questioning about IPV, 20% believed that all patients with any injury, and 16.4% believed that all patients should be questioned about IPV. 89.1% also felt that it is both the physician and nurse’s role to question patients about IPV. Finally, 81.8% of ED staff did not receive any formal training on domestic or intimate partner violence. Conclusion: The present study indicates that there may be a gap in education surrounding this high risk condition as seen by the lack of knowledge surrounding current tools, lack of consensus on who should be questioned, and lack of training. Therefore, introduction of a knowledge translation piece may be beneficial to both ED physicians and nurses.

Introduction: Domestic violence (DV) rates in smaller cities have been reported to be some of the highest in Canada. It is highly likely that emergency department staff will come across victims of intimate partner violence (IPV) in their daily practice. However, elsewhere we have found a lack of knowledge of current tools as well as lack of training in ED staff. Furthermore, these findings may also be reflected by low rates of IPV documentation, especially in high-risk cases. The purpose of the current study is to determine if ED staff would be willing to implement a brief IPV screening tool, the Partner Violence Screen (PVS) in their daily practice. It consists of the 3 questions: Have you ever been hit, kicked, punched or otherwise hurt by someone within the past year, and if so, by whom? Do you feel safe in your current relationship? Is there a partner from a previous relationship that is making you feel unsafe now? Methods: A cross-sectional online survey was distributed to ED staff (LPNs, NPs, Physicians, Residents, RNs) via staff email lists three times between July and October 2016, with a response rate of 45.9% (n=55). The survey included a 5-question Likert scale. The primary outcome was whether ED staff are willing to implement a new case-finding tool in their daily practice. The secondary outcome was to assess whether staff would find this tool beneficial in case-finding for IPV. Results: 43.6% of staff responded that they are likely to use the tool routinely, 29.1% were unsure, and 2.7% very likely. 7.27% and 3.64% stated their predicted use as unlikely and very unlikely, respectively. In addition, 43.6% of staff thought that the PVS would be beneficial in case finding for IPV, 40% were unsure, 12.7% thought very likely, 1.82% unlikely, and 1.82% very unlikely. Conclusion: These findings suggest that emergency department staff may be receptive to and find the introduction of the PVS beneficial in identifying cases of IPV. Future directions will include the introduction of this tool through a knowledge translation education piece in order improve the identification process for and awareness of a high-risk condition in a vulnerable population group.

Introduction: To help mitigated risks associated with red blood cell transfusions, CWC guidelines recommend practicing restrictively. Transfusion Medicine recommends using a Hgb threshold of 70 g/L, and ordering a single unit at a time (with reassessment after). The purpose of this study is to investigate Emergency Department (ED) compliance with these more restrictive thresholds among hemodynamically stable patients. Methods: A retrospective analysis was performed on data from all emergency visits to 4 adult urban ED sites from July 1 2014 to July 1 2016. We excluded unstable patients (CTAS1, temperature >38°C, HR >100 bpm, RR >20 rpm, systolic BP <90 mmHg, and O2 sat <85%) and certain others (patients without a Hgb level, patients who left without being seen, and orders cancelled via patient discharge). After applying exclusion factors, we examined transfusions ordered. Appropriateness was assessed using the stratified Choosing Wisely Canada Guidelines for Transfusion. As an adjunct, IV iron therapy data was also analyzed for the same period between July 1 2014 and July 1 2016, excluding patients who did not have a Hgb level. Results: We identified 1329 eligible patients (54% female), with a mean age of 68 and average first hemoglobin of 72 g/L. Across all groups, 16% of patients received only 1 unit of blood. 19% of transfused patients had a hemoglobin less than 60 g/L, 45% had a Hgb <70 g/L, 32% had a Hgb 70-80 g/L, 14% had a Hgb 81-90 g/L, and 8% had a Hgb >90 g/L. Over the same two-year period, 178 patients received IV iron. The average Hgb for those patients was 82 g/L. Conclusion: A retrospective analysis documents a significant likelihood of pRBC over-transfusion among Emergency Department physicians and an underutilization of IV iron therapy for certain hemodynamically stable and anemic patients. The development of audit and feedback methods, and creation of a clinical pathway may help address the rate of over-transfusion.