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Research & Development Medical research, Adverse effects

Is Cannabis a Heart-Breaker?

Two presentations at this year’s American Heart Association Scientific Sessions report that cannabis may lead to poorer outcomes for patients with heart conditions (1). One study suggested that cannabis smokers who underwent percutaneous coronary intervention to unblock an artery in the heart were 50 percent more likely to suffer bleeding after the procedure and may be more likely to suffer a stroke.

A second study found that heart attack survivors who used cannabis (consumption method not recorded) were more likely to have a second heart attack than non-users.

Both studies were based on reviews of medical records, so it’s difficult to draw conclusions about cause and effect. But more research on this patient group is definitely needed – one of the studies recorded much higher cannabis use among patients who had survived a heart attack or revascularization treatment.

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  1. American Heart Association, “Marijuana use associated with complications after heart attack or procedures” (2020). Available at: https://bit.ly/38Aqmll
About the Author
Charlotte Barker

Associate Content Director

After studying biology at Imperial College London, I got my start in biomedical publishing as a commissioning editor for healthcare journals, and I’ve spent my career covering everything from early-stage research to clinical medicine. Attracted by the creativity, talent and passion of the team, I joined Texere Publishing in 2014, where I’m now Associate Content Director and Editor of The Cannabis Scientist.

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