ArticleThe western journal of emergency medicine2026
Point-of-care Ultrasound for Detecting Methamphetamine-associated Heart Failure in the Emergency Department.
Article in The western journal of emergency medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionMethamphetamine-associated heart failure with reduced ejection fraction is a serious consequence of methamphetamine use often underrecognized in the emergency department (ED). Point-of-care ultrasound (POCUS) offers rapid, non-invasive cardiac screening for high-risk populations. This study evaluated the diagnostic yield of POCUS for detecting methamphetamine-associated heart failure with reduced ejection fraction in ED patients who use methamphetamine.
methodsWe conducted this prospective cohort study between December 2020-February 2024 at an urban Level I trauma center ED. The primary outcome was diagnostic yield of cardiac POCUS for abnormal left ventricular ejection fraction (LVEF) and abnormal sex-specific left ventricular end-diastolic diameter in patients with methamphetamine use, with secondary analyses assessing associations with use duration and frequency. Diagnostic yield was calculated as the proportion of completed POCUS examinations identifying abnormalities. We used E-point septal separation to calculate LVEF; < 40% was abnormal. Left ventricular end-diastolic diameter abnormality (> 5.8 cm males, > 5.2 cm females) was categorized as mild, moderate, or severe (mild, 5.9-6.3/5.3-5.6; moderate, 6.4-6.8/5.7-6.1; severe, > 6.8/> 6.1 cm males/females). Physician-performed POCUS assessed LVEF and left ventricular end-diastolic diameter in patients with a methamphetamine use history and a comparison group of non-users.
resultsOf the 136 enrolled patients, 84 (61.8%) reported methamphetamine use. Among methamphetamine users, diagnostic yield of cardiac POCUS was as follows: reduced LVEF in 22 of 70 with measurable LVEF (31.4% [20.9-43.6%]); any sex-specific left ventricular end-diastolic diameter abnormality in 30 of 84 (35.7% [25.6-46.9%]); and severe sex-specific left ventricular end-diastolic diameter abnormality in 15 of 84 (17.9% [10.4-27.7%]). Corresponding values in non-users were 3 of 52 (5.8% [1.2-16.0%]; P < .001), 10 of 52 (19.2% [9.6-32.5%]; P = .05), and 3 of 52 (5.8% [1.2 - 16.0%]; P = .07), respectively. Longer duration (odds ratio [OR] 6.05, 95% confidence interval [CI] 1.46-25.10) and higher frequency (OR 5.93, 95% CI, 1.52-23.06) of methamphetamine use were associated with reduced LVEF.
conclusionCardiac point-of-care ultrasound demonstrated a clinically significant diagnostic yield in detecting methamphetamine-associated heart failure with reduced ejection fraction among methamphetamine users in the ED, suggesting POCUS could aid early detection in this population, potentially streamlining management before disease progression.
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