Cannabis consumption has been shown to cause arrhythmia and increase risk for myocardial infarction, especially when compounded by cigarette smoking. Two studies identified an association between cannabis (marijuana) use and a higher risk for stroke and hospitalization for cardiac arrhythmia in young people. In the stroke study, young adults with recent cannabis use had almost twice the risk for stroke compared with nonusers, with further increased risk seen among frequent users.
A multidisciplinary team of cardiologists, pharmacists, and other physicians recently called for "routine screening for marijuana use" of patients in order to further clarify the cardiovascular safety profile associated with cannabis use.
Read more about the cardiovascular effects of cannabis.
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Cite this: Richard H. Sinert. Fast Five Quiz: Cannabis Use and Abuse - Medscape - Apr 08, 2020.