• Richard Hoang, Kari Sampsel, Andrew Willmore, Katerina Yelle Labre, Venkatesh Thiruganasambandamoorthy, and Lisa A Calder.
• Department of Emergency Services, Sunnybrook Health Sciences Centre, Toronto, ON, Canada. rich.nguyen.hoang@gmail.com.
• CJEM. 2021 Nov 1; 23 (6): 767-771.

BackgroundThe emergency department (ED) is an at-risk area for medical error. We determined the characteristics of patients with unanticipated and anticipated death within 7 days of ED discharge and whether medical error contributed.MethodsWe performed a single-centre health records review of 200 consecutive cases during a 3-year period from 2014 to 2017 in two urban, academic, tertiary care EDs. We included patients evaluated by an emergency physician who were discharged and died within 7 days. Three trained and blinded reviewers determined if deaths were related to the index visit, anticipated or unanticipated, and/or due to potential medical error. Reviewers performed content analysis to identify themes.ResultsOf 200 cases, 129 had sufficient information for analysis, translating to 44 deaths per 100,000 ED discharges (200/458,634). 13 cases per 100,000 ED discharges (58/458,634) were related and unanticipated deaths. 4 cases per 100,000 were due to potential medical errors (18/458,634). Over half (52.7%) of 129 patients displayed abnormal vital signs at discharge. Pneumonia (27.1%) was the most common cause of death. Patient themes were: difficult historian, multiple complaints, multiple comorbidities, acute progression of chronic disease, and recurrent falls. Provider themes were: failure to consider infectious etiology, failure to admit high-risk elderly patient, and missed diagnosis. System themes were: multiple ED visits or recent admission, and no repeat vital signs recorded.ConclusionThough the frequency of related and unanticipated deaths and those due to medical error was low, clinicians should carefully consider the highlighted common patient, provider, and system themes to facilitate safe discharge from the ED.© 2021. The Author(s), under exclusive licence to Canadian Association of Emergency Physicians (CAEP)/ Association Canadienne de Médecine d'Urgence (ACMU).

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