Paul Devenyi, MD; Michael A. McDonough, MB, BS
To the Editor: The paper of Chambers and colleagues (1) was interesting and intriguing. The authors provide evidence for a statistically compelling association between intravenous cocaine use and the risk for endocarditis. They speculate that this risk is not related to intravenous drug use by itself, but rather to some inherent properties peculiar to cocaine. The latter point is argued mainly on the basis of intravenous heroin use not having made an independent contribution to the risk for endocarditis.
Information about injection technique and sharing or not sharing equipment is conspicuously lacking. Such information is an important independent variable to
Devenyi P, McDonough MA. Cocaine Abuse and Endocarditis. Ann Intern Med. ;109:82–83. doi: 10.7326/0003-4819-109-1-82
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Published: Ann Intern Med. 1988;109(1):82-83.
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