Acetylsalicylic acid (ASA) is a simple and cost-effective treatment for acute coronary syndromes (ACS). Our objectives were to determine the frequency of ASA administration in the emergency department (ED) for patients with acute myocardial infarction or unstable angina, and to identify patient characteristics associated with its administration.

This is a retrospective chart review of patients discharged with a final diagnosis of ACS. Data on age, gender, mode of presentation, presence of chest pain at triage, administration of ASA or not in the ED, dosage and form of ASA received, timing of administration, presence of contraindications to ASA and use of regular ASA prior to ED presentation were recorded.

Six hundred and one charts were analyzed. Five hundred and fifty patients (91.5%) received ASA. Only 444 (73.9%) of these 550 patients were administered the ASA appropriately, according to the American Heart Association / American College of Cardiology (AHA/ACC) guidelines. Univariate analysis showed that chart notes “Transport by ambulance,” “Allergy to ASA” and “Gastrointestinal bleed” were associated with a lower probability of the patient being administered ASA. If a patient was noted as taking ASA regularly, it increased the chance of this patient being administered ASA in the ED.

Although the study ED performed well, administering ASA to 91.5% of patients with ACS, only 73.9% of the patients who received ASA were administered the ASA appropriately, as recommended in the AHA/ACC guidelines. Educational strategies and system changes are necessary to increase the proportion of eligible ACS patients who receive appropriate ASA therapy.

The Emergency Severity Index (ESI©) is an initial measure of patient assessment in the emergency department (ED). It rates patients based on acuity and predicted resource intensity from Level 1 (most ill) to Level 5 (least resource intensive). Already implemented and evaluated in several US hospitals, ESI has yet to be evaluated in a Canadian setting or compared with the fivelevel Canadian Emergency Department Triage and Acuity Scale (CTAS).

To compare the inter-observer reliability of 2 five-level triage and acuity scales.

Ten triage nurses, who had all been trained in the use of CTAS, from 4 urban, academic Canadian EDs were randomly assigned either to training in ESI version 3 (ESI v.3) or to refresher training in CTAS. They independently assigned triage scores to 200 emergency cases, unaware of the rating by the other nurses.

Number of years of nursing practice was the only significant demographic difference found between the 2 groups (p = 0.014). A quadratically weighted kappa to measure the inter-observer reliability of the CTAS group was 0.91 (0.90, 0.99) and not significantly different from that of the ESI group 0.89 (0.88, 0.99). An inter-test generalizability (G) study performed on the variance components derived from an analysis of variance (ANOVA) revealed G(5) = 0.90 (0.82, 0.99). Conclusions: After 3 hours of training, experienced triage nurses were able to perform triage assessments using ESI v.3 with the same inter-observer reliability as those with experience and refresher training in using the CTAS.

It may be appropriate for nurse practitioners (NPs) to provide care for a subset of emergency department (ED) patients with non-urgent problems. Our objective was to determine the attitude of ED patients with minor problems to being treated by an NP.

Consecutive adults who presented to this tertiary ED on weekdays between 8 am and 4 pm were eligible for the study if they had 1 of the following 18 complaints: minor abrasions or lacerations, minor bites, minor burns, minor extremity trauma, cast check, earache, superficial foreign body, lice or pinworms, morning-after pill request, needlestick injury or body-fluid exposure, prescription refill, puncture wound, sore throat, subconjunctival hemorrhage, suture removal or wound check, tetanus immunization request, toothache, or urinary tract infection (women). Unless pain or a language barrier precluded study involvement, a triage nurse gave each patient a brief survey to be completed prior to physician assessment.

Of 728 eligible patients during the study period, 246 (34%) were invited to participate and 213 (87%) were enrolled. The mean age was 34.5 years, and 58% were men. When asked about their willingness to be treated by an NP, 72.5% said “yes” (95% confidence interval [CI], 65.8%–78.4%), 15.5% were “uncertain” (95% CI, 10.8%–21.1%) and 12.1% said “no” (95% CI, 8.0%–17.3%). Of those who said “yes,” 21% expected to also see an emergency physician during their ED visit and 67% did not. Willingness to be treated by an NP was independent of age, gender or educational status.

A majority of ED patients with minor problems accepted being treated by an NP, often without additional physician assessment. Several factors, including impact on ED staffing and patient flow, logistics, cost and quality of care should be evaluated before implementing such strategies.

Non-urgent visits comprise a significant proportion of visits to most emergency departments (EDs). Given the severe overcrowding issues faced by many EDs, the use of the Canadian Emergency Department Triage and Acuity Scale (CTAS) to identify patients who could be managed elsewhere seems to be an obvious way to reduce the pressure on the ED and “solve” the overcrowding problem.

To quantify the resource implications, in terms of stretcher use and waiting times, related to non-urgent patient visits and to estimate the potential impact on ED flow of redirecting these patients to alternate primary care settings.

Retrospective database audit in an urban referral hospital ED. For this study, patients triaged as either CTAS Levels IV or V were considered “non-urgent.”

Non-urgent patients comprised 30% of ED visits, but less than 5% of all those needing stretchers, along with their associated nursing resources. The longer waits consisted almost entirely of waits for available stretchers and would therefore have remained essentially unaffected. In spite of being labelled “non-urgent” by CTAS criteria, 7.3% of all patients requiring admission came from this group.

Non-urgent patients consume a small fraction of the ED stretchers and acute-care resources; therefore, strategies aimed at diverting non-urgent patients are unlikely to improve access for more urgent patients. Using the CTAS to identify patients for diversion away from the ED is measurably unsafe and will lead to inappropriate refusal of care for many patients requiring hospital treatment.

To determine whether focused abdominal sonogram for trauma (FAST) in a rural hospital provides information that prompts immediate transfer to a tertiary care facility for patients with blunt abdominal trauma who would otherwise be discharged or held for observation.

Prior to the study, participating emergency physicians underwent a minimum of 30 hours of ultrasound training. All patients who presented with blunt abdominal trauma to our rural hospital between Mar. 1, 2002, and Apr. 30, 2003, were eligible for study. Following a history and physical examination, the emergency physician documented his or her disposition decision. A FAST was then performed, and the disposition reconsidered in light of the FAST results.

Sixty-seven FAST exams were performed on 65 patients. Three examinations (4.5%) were true-positive (95% confidence interval [CI] 0.9%–12.5%); 60 (89.6%) were true-negative (95% CI 79.7%–95.7%), 4 (6%) were false-negative (95% CI 1.7%–14.6%) and none (0%) were false-positive (95% CI 0%–5.4%). These values reflect sensitivity, specificity, negative predictive value and positive predictive values of 43%, 100%, 94% and 100% respectively. FAST results did not alter the decision to transfer any patient (0%: 95% CI 0.0%–5.4%), although one positive FAST may have led to an expedited transfer. One of 38 patients who was discharged after a negative FAST study returned 24 hours later because of worsening symptoms, and was ultimately found to have splenic and pancreatic injuries.

This study failed to demonstrate that FAST improves disposition decisions for patients with blunt abdominal trauma who are evaluated in a hospital without advanced imaging or on-site surgical capability. However, the study is not sufficiently powered to rule out a role for FAST in these circumstances, and our data suggest that up to 5.4% of transfer decisions could be influenced by FAST. Rural emergency physicians should not allow a negative FAST study to override a clinical indication for transfer to a trauma centre; however, positive FAST studies can be used to accelerate transfer for definitive treatment.

To systematically review the efficacy and safety of N-acetylcysteine (NAC) for the prevention of radiocontrast-induced nephropathy (RIN), and to discuss its potential role in the emergency department.

We conducted a search of MEDLINE (from 1966 to December 2003), PubMed (1966 to December 2003) and EMBASE (1988 to December 2003) for English-language, prospective, randomized, controlled trials in humans using the search terms N-acetylcysteine, acetylcysteine, radiopharmaceuticals, contrast media, and kidney failure (acute).

Five trials support and 4 trials refute the hypothesis that NAC helps prevent RIN. In 7 of 9 trials, oral NAC was administered twice daily for 2 days, on the day before and on the day of the radiocontrast study — a regime not feasible for emergent situations. More recent trials suggest that adequate hydration and lower volumes of radiocontrast, rather than NAC, are more effective ways to prevent RIN.

Although further study may be indicated, current evidence does not suggest that NAC has a role in the emergency prevention of RIN.

Our objective was to document and compare the views obtained at laryngoscopy during emergency department (ED) rapid sequence intubation (RSI) by anesthetists and emergency physicians of varying seniority and experience.

Data were prospectively collected on every intubation attempt in 7 urban Scottish EDs for 2 calendar years, commencing Jan. 11, 1999. Data included patient’s age, gender, grade and specialty of intubator, laryngoscopic grade, and number of intubation attempts. Quality of laryngoscopic visualization was graded using the Cormack–Lehane scale, with grades I and II considered good visualization. A descriptive analysis was performed, and key statistical comparisons made.

During the study period, 735 patients underwent RSI, and grade of intubation was documented in 672 cases (91%). In total, 68.2%, 23.4%, 6.1% and 2.4% of the intubations were classified as Cormack–Lehane grade I, II, III and IV respectively. Overall, anesthetists and anesthesia trainees achieved good laryngoscopic visualization in 94.0% of cases (95% confidence interval [CI], 90.8%–96.4%) and emergency physicians and emergency medicine trainees did so in 89.2% of cases (95% CI, 85.5%–92.3%; p = 0.027). Specialist registrars and senior house officers in anesthesia were more likely to obtain good visualization than their emergency medicine counterparts (p = 0.034 and 0.035 respectively). Consultants in emergency medicine were more likely to obtain good views than their anesthesia counterparts, but this difference was not statistically significant.

Anesthetic trainees obtain better laryngoscopic views than emergency medicine trainees, but these differences disappear with increasing emergency physician seniority, suggesting a training and experience effect. Emergency medicine trainees may benefit from additional focus on laryngoscopic visualization techniques early in their training period.

Our objective was to describe clinically significant infections in a cohort of afebrile neonates who underwent an emergency department (ED) septic workup because of the history of a measured fever at home.

Retrospective medical record review of all infants ≤28 days of age who presented to our tertiary care pediatric ED between Jan. 1, 1999, and Aug. 22, 2002, underwent lumbar puncture in the ED, had a reported temperature at home of ≥38°C, and an ED triage temperature of <38°C. Laboratory and radiographic results were tabulated.

During the study period, 206 neonates underwent lumbar puncture in our ED. Of these, 108 were excluded because their home temperature was not documented, and 71 were excluded because they were still febrile on presentation to the ED. The study group consisted of the remaining 27 subjects, 4 of whom had received acetaminophen prior to ED arrival. Infections were confirmed in 10 (37%) subjects (3 urinary tract infections, 2 aseptic meningitis, 1 enterovirus meningitis, 1 respiratory syncytial virus bronchiolitis, 1 rotavirus enteritis and 2 pneumonias).

Clinically important infections are not uncommon among afebrile neonates undergoing ED septic workup because of a measured fever at home. Some diagnostic testing is warranted in this group, although the clinical utility and indications for specific test modalities remain unclear.

Alcohol is a frequent contributing factor to motor vehicle collision injuries. Our objective was to determine the proportion of intoxicated drivers hospitalized following motor vehicle crashes who were subsequently convicted of an impaired driving criminal code offence.

We reviewed British Columbia Trauma Registry records from Jan. 1, 1992, to Mar. 31, 2000, and identified drivers of motor vehicles who were hospitalized for treatment of crash-related injuries. Patient identifiers were then used to link with the Insurance Corporation of British Columbia’s (ICBC) contraventions database and the ICBC Traffic Accident System collisions database.

Of 6067 patients identified in the Trauma Registry, 4042 had not been administered a blood ethanol test, 209 had no driver’s licence match in the relevant databases and 119 died, leaving 1697 eligible patients. Mean age was 34 years, and 79.6% were male. The average Injury Severity Score was 20, the average hospital stay was 14 days and, among ethanol-positive patients, the mean ethanol level was 34.0 mmol/L (156.4 mg/dL). In patients with levels >17.3 mmol/L, the police had listed ethanol as a contributing factor in 70.6% of cases. Despite this, only 11.0% were convicted of impaired driving and 8.4% of another criminal offence; 10.7% received a 24-hour roadside prohibition, 3.9% received a 90-day administrative driving prohibition and 25.0% were convicted of a contravention of the Motor Vehicle Act. Forty-one percent were not convicted of any offence at all.

Intoxicated drivers in British Columbia requiring hospitalization as a result of alcohol-related motor vehicle crashes are seldom convicted of impaired driving or other criminal code offences.

Obtaining prompt vascular access in young children presenting to the emergency department (ED) is frequently both necessary and technically challenging. The objective of our study was to describe our experience using intramuscular (IM) ketamine to facilitate the placement of central venous catheters in children presenting to our ED needing vascular access in a timely fashion.

We performed a retrospective medical record review of all pediatric patients <18 years of age who presented to our tertiary care pediatric ED between May 1, 1998, and August 7, 2003, and underwent the placement of a central venous catheter facilitated by the use of IM ketamine.

Eleven children met our inclusion criteria. Most of the children were young and medically complicated. The children ranged in age from 6 months to 8 years. The only complication identified was vomiting experienced by an 8-year-old boy. Emergency physicians successfully obtained central venous access in all subjects in the case series.

The use of IM ketamine to facilitate the placement of central venous catheters in children who do not have peripheral venous access appears to be helpful. Emergency physicians may find it useful to be familiar with this use of IM ketamine.