Journal article
Cocaine-induced Myocardial Infarction in Patients with Normal Coronary Arteries
Annals of internal medicine, Vol.115(10), p.797
11/15/1991
DOI: 10.1059/0003-4819-115-10-797
PMID: 1929028
Abstract
â–ª Objective: To review the reported cases of myocardial infarction temporally related to recreational and topical anesthetic use of cocaine,
with special regard for underlying etiologic factors in patients subsequently found to have normal coronary arteries.
â–ª Data Sources: Personal records of three cases and a comprehensive literature review using MEDLINE and supplemented by Index Medicus and the bibliographies of case reports.
â–ª Data Synthesis: A total of 114 cases of cocaine-induced myocardial infarction were identified. The coronary anatomy was defined by angiography
or autopsy in 92 patients, 38% of whom had normal coronary arteries. In these 35 patients (average age, 32; range, 21 to 60
years), myocardial infarction typically involved the anterior left ventricular wall (77%). Moderate cigarette smoking with
one or fewer associated coronary risk factors was prevalent (68%). Focal coronary vasospasm was shown convincingly in only
two cases. Intracoronary thrombus was initially found on 9 of 11 angiograms (82%) done within 12 hours of the myocardial infarction.
Experimental evidence suggests that cocaine has direct and indirect sympathomimetic effects on vascular smooth muscle, attenuates
endothelium vasodilator capacity, exerts a potent depressant effect on cardiac myocytes, and promotes atherogenesis.
â–ª Conclusions: Cocaine-induced myocardial infarction in patients with normal coronary arteries probably involves adrenergically mediated
increases in myocardial oxygen consumption, vasoconstriction of large epicardial arteries or small coronary resistance vessels,
and coronary thrombosis. Accelerated atherosclerosis and impairment of endothelium vasodilator function may occur after chronic
cocaine use.
Details
- Title: Subtitle
- Cocaine-induced Myocardial Infarction in Patients with Normal Coronary Arteries
- Creators
- Robert L Minor JrBrook D. ScottDonald D. Brown - University of Iowa, Internal MedicineMichael D. Winniford
- Resource Type
- Journal article
- Publication Details
- Annals of internal medicine, Vol.115(10), p.797
- Publisher
- American College of Physicians
- DOI
- 10.1059/0003-4819-115-10-797
- PMID
- 1929028
- ISSN
- 0003-4819
- eISSN
- 1539-3704
- Language
- English
- Date published
- 11/15/1991
- Academic Unit
- Cardiovascular Medicine; Internal Medicine
- Record Identifier
- 9984094513902771
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