Effect of self-reported cannabis use on postoperative outcomes: a propensity matched cohort analysis of non-cardiac surgery patients

Abstract

Cannabis use is potentially associated with increased harms and varied effects on pain control. Zhang et al performed a retrospective cohort study in patients having non-cardiac surgery and compared patients who self-report cannabis use to matched controls.1 There were no differences in the composite outcome (death, myocardial infarction, stroke, cardiac or respiratory arrest, intensive care unit admission), and in the secondary outcomes of new-onset arrhythmias, pain control or nausea–vomiting.