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Review
. 2020 Jun 2;9(11):e016704.
doi: 10.1161/JAHA.120.016704. Epub 2020 May 29.

Clinical Characteristics and Management of Methamphetamine-Associated Cardiomyopathy: State-of-the-Art Review

Affiliations
Review

Clinical Characteristics and Management of Methamphetamine-Associated Cardiomyopathy: State-of-the-Art Review

Pavan K V Reddy et al. J Am Heart Assoc. .

Abstract

Methamphetamine-associated cardiomyopathy (MACM) is an increasingly recognized disease entity in the context of a rapidly spreading methamphetamine epidemic. MACM may afflict individuals with a wide range of ages and socioeconomic backgrounds. Presentations can vary greatly and may involve several complications unique to the disease. Given the public health significance of this disease, there is a relative dearth of consensus material to guide clinicians in understanding, diagnosing, and managing MACM. This review therefore aims to: (1) describe pathologic mechanisms of methamphetamine as they pertain to the development, progression, and prognosis of MACM, and the potential to recover cardiac function; (2) summarize existing data from epidemiologic studies and case series in an effort to improve recognition and diagnosis of the disease; (3) guide short- and long-term management of MACM with special attention to expected or potential sequelae of the disease; and (4) highlight pivotal unanswered questions in need of urgent investigation from a public health perspective.

Keywords: cardiomyopathy; diagnosis; heart failure; management; methamphetamine.

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Figures

Figure 1
Figure 1. Proposed pathophysiologic mechanisms for the development of methamphetamine‐associated cardiomyopathy.
Dysfx indicates dysfunction.
Figure 2
Figure 2. Histological examples of patients with discontinued and continued methamphetamine (MA) abuse over different time periods.
Longer and continued MA abuse (>5 years) is associated with a high degree of fibrosis and myocyte damage (magnification >200). Reprinted from Schürer et al29 with permission. Copyright ©2017, Elsevier. LV‐EF indicates left ventricular ejection fraction.
Figure 3
Figure 3. Management of acute and chronic methamphetamine (MA)–associated cardiomyopathy presentations.
*Caution is advised if patient is actively using MAs. BDZ indicates benzodiazepines; GDMT, guideline‐directed medical therapy; HF, heart failure; IVF, intravenous fluid; MCS, mechanical circulatory support; NPPV, noninvasive positive pressure ventilation; RHC, right heart catheterization; and VAD, ventricular assist device.

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MeSH terms

Substances