Recent cocaine use and the incidence of hemodynamic events during general anesthesia: A retrospective cohort study

Abstract

Study objectiveTo evaluate the intraoperative hemodynamics and medication requirements of cocaine-positive patients compared to matched cocaine-negative controls. DesignRetrospective cohort study. SettingPublic county hospital. Patients821 patients undergoing general anesthesia. MeasurementsIncidence of hemodynamic events, defined by a mean arterial pressure of <65 mmHg or >105 mmHg or a heart rate of <50 beats per minute or >100 beats per minute. Main resultsCocaine-positive patients did not experience a higher incidence of hemodynamic events when compared with matched cocaine-negative patients. Cocaine-positive patients were not more likely to be administered vasopressors intraoperatively but did receive more anti-hypertensive agents. The minimum alveolar concentration of anesthetics used was similar between the two groups. Anesthesia duration, length of stay, and in-hospital mortality did not significantly differ between the two cohorts. ConclusionsCocaine-positive patients did not demonstrate more intraoperative hemodynamic events or adverse short-term outcomes as compared to matched cocaine-negative controls.