Goals for this study were to characterize the substances being used by youth who presented to an emergency department (ED), their demographic descriptors, and to describe the associated acute morbidity and mortality.

We conducted a retrospective review of all youth, ages 10–16 years, who presented to a pediatric ED with complaints related to recreational drug use (n=641) for 2 years ending on December 31, 2009.

The median age of patients was 15 years; 56% were female. Six percent of patients were homeless, and 21% were wards of the state. The most frequent ingestions included ethanol (74%), marijuana (20%), ecstasy (19%), and medications (15%). Over one third of patients had ingested two or more substances. Ninety percent of patients were brought to the ED by the emergency medical services; 63% of these activations were by non-acquaintances. Of the 47% of youth who presented with a decreased level of consciousness, half had a Glasgow Coma Scale less than 13. The Canadian Triage and Acuity Scale score was 1 or 2 for 44% of patients. Sixty-eight percent received IV fluids, 42% received medication, and 4% were intubated. The admission rate was 9%.

Youth who presented to the ED for substance use represented a socially vulnerable population whose use of recreational substances resulted in high medical acuity and significant morbidity. Improved clinical identification of such high-risk youth and subsequent design of interventions to address problematic substance use and social issues are urgently needed to complement the acute medical care that youth receive.

To quantify the effect of family medicine resident physicians on emergency department (ED) wait times and patients leaving without being seen or treated.

In a medium-volume community ED over twelve months, we used retrospective chart review to compare wait times between patients seen during shifts where staff were working alone versus with a resident. We measured the time from initial triage time to physician initial assessment (T1) and disposition time (LOS), and number of patients leaving without being seen or treated.

In our analysis, 21,141 patients (91% of total visits) were included; 48% were in the staff-with-resident group, and 52% were in the staff-only group. Mean T1 in the resident group was significantly shorter than the staff-only group (1 hour 23 minutes versus 1 hour 38 minutes, difference 15 minutes, 95% CI 13 to 17 minutes, p<0.001). Mean total LOS in the resident group was also reduced (2 hours 38 minutes versus 2 hours 50 minutes, difference 12 minutes, 95% CI 8 to 17 minutes, p<0.001). Fewer patients left without being seen in the resident group than the staff only group (2.8% versus 4.9%, p<0.001). There were no differences in patients leaving without being treated (0.5% versus 0.5%).

This is the first study to demonstrate that residents are associated with a reduction in ED wait times and patients leaving without being seen in a low-acuity, community hospital, compared to previous studies demonstrating no difference or increased wait times.

There is no evidence-based description of electrocardiogram (ECG) interpretation competencies for emergency medicine (EM) trainees. The first step in defining these competencies is to develop a prioritized list of adult ECG findings relevant to EM contexts. The purpose of this study was to categorize the importance of various adult ECG diagnoses and/or findings for the EM trainee.

We developed a list of potentially important adult ECG diagnoses/findings and conducted a Delphi opinion-soliciting process. Participants used a 4-point Likert scale to rate the importance of each diagnosis for EM trainees. Consensus was defined as a minimum of 75% agreement at the second round or later. In the absence of consensus, stability was defined as a shift of 20% or less after successive rounds.

A purposive sampling of 22 emergency physicians participated in the Delphi process, and 16 (72%) completed the process. Of those, 15 were from 11 different EM training programs across Canada and one was an expert in EM electrocardiography. Overall, 78 diagnoses reached consensus, 42 achieved stability and one diagnosis achieved neither consensus nor stability. Out of 121 potentially important adult ECG diagnoses, 53 (44%) were considered “must know” diagnoses, 61 (50%) “should know” diagnoses, and 7 (6%) “nice to know” diagnoses.

We have categorized adult ECG diagnoses within an EM training context, knowledge of which may allow clinical EM teachers to establish educational priorities. This categorization will also facilitate the development of an educational framework to establish EM trainee competency in ECG interpretation.

Online educational resources (OERs) are increasingly available for emergency medicine (EM) education. This study describes and compares the use of free OERs by the Royal College of Physicians and Surgeons of Canada (RCPSC) EM residents and program directors (PDs) and investigates the relationship between the use of OERs and peer-reviewed literature.

A bilingual, online survey was distributed to RCPSC-EM residents and PDs using a modified Dillman method. The chi-square test and Fisher’s exact test were used to compare the responses of residents and PDs.

The survey was completed by 214/350 (61%) residents and 11/14 (79%) PDs. Free OERs were used by residents most frequently for general EM education (99.5%), procedural skills training (96%), and learning to interpret diagnostic tests (92%). OER modalities used most frequently included wikis (95%), file-sharing websites (95%), e-textbooks (94%), and podcasts (91%). Residents used wikis, podcasts, vodcasts, and file-sharing websites significantly more frequently than PDs. Relative to PDs, residents found entertainment value to be more important for choosing OERs (p<0.01). Some residents (23%) did not feel that literature references were important, whereas all PDs did. Both groups reported that OERs increased the amount of peer-reviewed literature (75% and 60%, respectively) that they read.

EM residents make extensive use of OERs and differ from their PDs in the importance that they place on their entertainment value and incorporation of peer-reviewed references. OERs may increase the use of peer-reviewed literature in both groups. Given the prevalence of OER use for core educational goals among RCPSC-EM trainees, future efforts to facilitate critical appraisal and appropriate resource selection are warranted.

Emergency department thoracotomy (EDT) is a rare and potentially life-saving intervention performed for trauma patients in extremis. EDT is rare at Canadian trauma centres because of our infrequent occurrence of penetrating trauma. This study was undertaken to evaluate outcomes at a Canadian level 1 trauma facility and compare survival to large published datasets. Also, we evaluated the appropriateness of an EDT performed at our centre based on published national guidelines.

Retrospective medical record review of all patients undergoing an EDT during their resuscitation in the emergency department. Records were identified using our trauma registry, and all charts were manually reviewed. The primary outcome was survival to hospital discharge.

Over a 20-year period, 58 EDTs were performed with 6 (10.3%) survivors. Patients undergoing an EDT secondary to penetrating trauma had the highest survival (5 of 24 patients or 20.8% survival) compared to patients undergoing an EDT for blunt trauma (1 of 34 patients or 2.9% survival). Patients undergoing an EDT who had not suffered cardiac arrest represented the group with the highest survival rate (3 of 6 patients or 50% survival). The majority of EDTs (79.3%) were indicated, and no patient undergoing an EDT survived if it was performed outside of published guidelines.

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.

Continuous positive airway pressure (CPAP) is commonly used in the treatment of acute cardiogenic pulmonary edema (ACPE) and acute exacerbations of chronic obstructive pulmonary disease (AECOPD). In-hospital evidence is robust: CPAP has been shown to improve respiratory status and to reduce intubation rates. There is less evidence on prehospital CPAP, although the emergency medical services (EMS) adoption of this modality is increasing. The objectives of this study were to 1) measure the effectiveness of prehospital CPAP on morbidity, mortality, and transport times; and 2) audit the selection of patients by medics for appropriateness and safety.

We conducted a before-and-after study from August 1 to October 31 in 2010 and 2011, before and after the implementation of prehospital CPAP in a city of one million people with large rural areas. Medics were trained to apply CPAP to patients with respiratory distress and a presumed diagnosis of ACPE or AECOPD. Charts were selected using the search criteria of the chief complaint of shortness of breath, emergent transport to hospital, and any patients receiving CPAP in the field. Data extracted from ambulance call reports and hospital records were analysed with appropriate univariate statistics.

A total of 373 patients enrolled (186 pre-non-invasive ventilation [NIV] and 187 post-NIV), mean age 71.5 years, female 51.4%, and final diagnoses of ACPE 18.9%, AECOPD 21.9%. In the post group of 84 patients meeting NIV criteria, 41.6% received NIV; and of 102 patients not meeting the criteria, 5.2% received NIV. There were 12 minor adverse events in 36 applications (33.3%) as per protocol. Comparing post versus pre, there were higher rates of emergency department (ED) NIV (20.0% v. 13.4%, p<0.0001) and higher overall mortality (18.8% v. 14.9%, p<0.0001). There were no differences in ED intubation (2.1% v. 2.3%, p<0.001) and length of stay (6.8 v. 8.7 days, p=0.24).

Despite the robust in-hospital data supporting its use, we could not find benefit from CPAP in our prehospital setting with respect to morbidity, mortality, and length of stay. EMS must exercise caution in making the decision to invest in the equipment and training required to implement prehospital CPAP.

A recent mixed-methods study on the state of emergency medical services (EMS) research in Canada led to the generation of nineteen actionable recommendations. As part of the dissemination plan, a survey was distributed to EMS stakeholders to determine the anticipated impact and feasibility of implementing these recommendations in Canadian systems.

An online survey explored both the implementation impact and feasibility for each recommendation using a five-point scale. The sample consisted of participants from the Canadian National EMS Research Agenda study (published in 2013) and additional EMS research stakeholders identified through snowball sampling. Responses were analysed descriptively using median and plotted on a matrix. Participants reported any planned or ongoing initiatives related to the recommendations, and required or anticipated resources. Free text responses were analysed with simple content analysis, collated by recommendation.

The survey was sent to 131 people, 94 (71.8%) of whom responded: 30 EMS managers/regulators (31.9%), 22 researchers (23.4%), 15 physicians (16.0%), 13 educators (13.8%), and 5 EMS providers (5.3%). Two recommendations (11%) had a median impact score of 4 (of 5) and feasibility score of 4 (of 5). Eight recommendations (42%) had an impact score of 5, with a feasibility score of 3. Nine recommendations (47%) had an impact score of 4 and a feasibility score of 3.

For most recommendations, participants scored the anticipated impact higher than the feasibility to implement. Ongoing or planned initiatives exist pertaining to all recommendations except one. All of the recommendations will require additional resources to implement.

The primary aim of this study was to determine the characteristics and develop a predictive model describing low acuity users of the emergency department (ED) by patients followed by a family health team (FHT). The secondary aim was to contrast this information with characteristics of high acuity users. We also sought to determine what factors were predictive of leaving without being seen (LWBS).

This retrospective descriptive correlational study explored characteristics and factors predictive of low acuity ED utilization. The sample included all FHT patients with ED visits in 2011. The last ED record was chosen for review. Sex, age, Canadian Triage and Acuity Scale (CTAS), presenting complaint(s), time of day, day of week, number of visits, and diagnosis were recorded.

Of 1580 patients who visited the ED in 2011, 56% were CTAS 1–3 visits, 24% CTAS 4–5 and 20% had no CTAS recorded. Patients who were older than age 65 were approximately half as likely to have a CTAS level of 4–5 compared to younger patients (OR=0.605, CI=0.441,0.829). Patients older than age 65 were 1.75 times more likely to be CTAS level 1–2 (OR=1.745, CI=1.277, 2.383). Patients who went to the ED during the day were less likely to LWBS compared to night visits (OR=0.697, CI=0.532, 0.912).

Most low acuity ED utilization is by patients under the age of 65, while high acuity ED utilization is more common among patients older than age 65. Patients are more likely to LWBS during late evening and overnight periods (9 pm–7 am).

To determine whether a nursing intervention delivered at emergency department (ED) discharge would reduce ED revisits.

A randomized study was conducted in the ED of a tertiary cardiac hospital in Montreal, Quebec. Between November 2006 and March 2010, 3,795 patients were assessed for eligibility based on two risk factors for ED revisits (≥1 ED visit in the past year and ≥6 medications); 132 were randomized to the experimental group (EG) and 133 to the control group (CG). The intervention included one nurse-patient meeting before leaving the ED, with two additional telephone contacts over the next 2 weeks. The primary outcome was time to ED revisits within 30 days after discharge. Secondary outcomes included time to ED revisits over 90, 180, and 365 days and hospitalizations over 30, 90, 180, and 365 days.

A planned interim analysis that stopped the study with half of the planned sample showed that the time to ED revisits was similar in both groups at 30 days (p=0.81; revisits: 18.2% in EG, 19.6% in CG), 90 days (p=0.44), 180 days (p=0.98), and 365 days (p=0.75). The only difference identified was a lower hospitalization proportion at 180 days in the EG group (13.6% v. 24.1%; p=0.038).

These findings are consistent with previous research showing that few ED-based interventions are successful in reducing ED returns. Factors other than those targeted by the intervention, including an improvement in usual care, may explain the findings.

Societal aging is expected to impact the use of emergency medical services (EMS). Older adults are known as high users of EMS. Our primary objective was to quantify the rate of EMS use by older adults in a Canadian provincial EMS system. Our secondary objective was to compare those transported to those not transported.

We analysed data from a provincial EMS database for emergency responses between January 1, 2010 and December 31, 2010 and included all older adults (≥65 years) requesting EMS for an emergency call. We described EMS use in relation to age, sex, and resources.

There were 30,653 emergency responses for older adults in 2010, representing close to 50% of the emergency call volume and an overall response rate of 202.8 responses per 1,000 population 65 years and older. The mean age was 79.9±8.5 years for those 57.3% who were female. The median paramedic-determined Canadian Triage and Acuity Scale (CTAS) score was 3 and the mean on-scene time was 24.2 minutes. Non-transported calls (12.3%) for the elderly involved predominantly (54.9%) female patients of similar mean age (78.3 years) but lower acuity (CTAS 5) and longer average on-scene times (32.6 minutes).

We confirmed the increasingly high rate of EMS use with age to be consistent with other industrialized populations. The low-priority and non-transport calls by older adults consumed considerable resources in this provincial system and might be the areas most malleable to meet the challenges facing EMS systems.

The initial management of a trauma patient often involves imaging in the form of x-rays, computed tomography (CT) and other radiographic studies, which expose the patient to ionizing radiation, an entity known to cause tissue injury and malignancy at high doses. The purpose of this study was to use a calculation-based method to determine the radiation exposure of trauma patients undergoing trauma team activation in a Canadian tertiary-care trauma centre.

A retrospective chart review was conducted using the Nova Scotia Provincial Trauma Registry. All patients age 16 years old and over who underwent trauma team activation between March 1, 2008 and March 1, 2009 were included. Patients who died prior to imaging tests were excluded. Dose reports for each CT were used to calculate a whole-body radiation dose for each patient.

There were 230 trauma team activations during the study period, of which 206 had CT imaging. Data were available for 162 patients. The mean whole-body radiation exposure for all patients was 24.4±10.3 mSv, which may correlate to one additional cancer death for every 100 trauma patients scanned.

Trauma patients are exposed to significant amounts of radiation during their initial trauma work-up, which may increase the risk of fatal cancer. Clinicians who care for these patients must be aware of the radiation exposure, and take measures to limit radiation exposure of trauma patients.