Canadian Journal of Cardiology

The Risk of Cardiovascular Events on Cannabis’ Highest Day


      Knowledge of the acute cardiovascular effects of cannabis consumption remains largely unknown and is important given the changing landscape of legalization of recreational cannabis use. “4/20” is an annual event where many individuals gather to consume cannabis. An increased risk of adverse health events such as motor vehicle accidents has previously been reported to occur on “4/20.” In this study, population-based administrative databases in Ontario, Canada, were used to evaluate the association between “4/20” and cardiovascular events. An increased risk of cardiovascular events on a population level was not observed on “4/20.” Additional research into the changes in the prevalence of the use of cannabis with recreational legalization and acute and chronic risk with cannabis use is suggested.


      La connaissance des effets cardiovasculaires aigus de la consommation de cannabis est largement méconnue, mais elle est importante dans le contexte évolutif de la légalisation de l’usage du cannabis à des fins récréatives. Le 4/20 est un événement annuel où de nombreux amateurs se rassemblent pour consommer du cannabis. Un risque accru d’incidents ayant des conséquences négatives sur la santé, comme les accidents de la route, a déjà été signalé dans le cadre du 4/20. Dans cette étude, les chercheurs ont utilisé des bases de données administratives fondées sur la population de l’Ontario, au Canada, pour évaluer l’association entre le 4/20 et les événements cardiovasculaires. Aucun risque accru d’événements cardiovasculaires n’a été observé au sein de la population dans le cadre du 4/20. Il est recommandé d’effectuer d’autres études sur l’évolution de la prévalence de l’usage du cannabis dans le contexte de la légalisation à des fins récréatives et sur les risques aigus et chroniques liés à l’usage du cannabis.
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