• Resuscitation · May 2024

    Trends in Presumed Drug Overdose Out-Of-Hospital Cardiac Arrests in San Francisco, 2015-2023.

    • Ralph C Wang, MontoyJuan Carlos CJCCDepartment of Emergency Medicine, University of California, San Francisco, USA., Robert M Rodriguez, James J Menegazzi, Jeremy Lacocque, and David G Dillon.
    • Department of Emergency Medicine, University of California, San Francisco, USA. Electronic address: ralph.wang@ucsf.edu.
    • Resuscitation. 2024 May 1; 198: 110159110159.

    IntroductionEstimates of the prevalence of drug-related out of hospital cardiac arrest (OHCA) vary, ranging from 1.8% to 10.0% of medical OHCA. However, studies conducted prior to the recent wave of fentanyl deaths likely underestimate the current prevalence of drug-related OHCA. We evaluated recent trends in drug-related OHCA, hypothesizing that the proportion of presumed drug-related OHCA treated by emergency medical services (EMS) has increased since 2015.MethodsWe conducted a retrospective analysis of OHCA patients treated by EMS providers in San Francisco, California between 2015 and 2023. Participants included OHCA cases in which resuscitation was attempted by EMS. The study exposure was the year of arrest. Our primary outcome was the occurrence of drug-related OHCA, defined as the EMS impression of OHCA caused by a presumed or known overdose of medication(s) or drug(s).ResultsFrom 2015 to 2023, 5044 OHCA resuscitations attended by EMS (average 561 per year) met inclusion criteria. The median age was 65 (IQR 50-79); 3508 (69.6%) were male. The EMS impression of arrest etiology was drug-related in 446/5044 (8.8%) of OHCA. The prevalence of presumed drug-related OHCA increased significantly each year from 1% in 2015 to 17.6% in 2023 (p-value for trend = 0.0001). After adjustment, presumed drug-related OHCA increased by 30% each year from 2015-2023.ConclusionDrug-related OHCA is an increasingly common etiology of OHCA. In 2023, one in six OHCA was presumed to be drug related. Among participants less than 60 years old, one in three OHCA was presumed to be drug related.Copyright © 2024 Elsevier B.V. All rights reserved.

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