Magazine article Clinical Psychiatry News

Marijuana May Lower Death Risk after Acute MI

Magazine article Clinical Psychiatry News

Marijuana May Lower Death Risk after Acute MI

Article excerpt

AT ACC 16

CHICAGO -- Patients who reported using marijuana prior to experiencing an acute MI had significantly lower in-hospital mortality and were less likely to have cardiogenic shock or require an intra aortic balloon pump than marijuana nonusers with an MI in an eight-state hospital records study, Dr. Cecelia P. Johnson-Sasso reported at the annual meeting of the American College of Cardiology.

"If this observation is confirmed in independent studies, further investigation into the possible therapeutic benefit of cannabinoid receptor agonists in acute MI may be warranted," declared Dr. Johnson-Sasso of the University of Colorado Denver.

She and her coinvestigators obtained hospital records with identity information removed for more than 3 million patients admitted for acute MI during 1994-2013 in eight states: California, Colorado, New Hampshire, New Jersey, New York, Texas, Vermont, and West Virginia.

After excluding concomitant users of cocaine, methamphetamine, or alcohol due to the potential for confounding cardiotoxic effects; MI patients under age 19 because of the likelihood of congenital heart disease; and patients over age 70 because only 0.01% of them admitted to marijuana use, the investigators were left with a study population of 3,854 marijuana users and 1.27 million MI patients who hadn't used marijuana.

In a multivariate regression analysis adjusted for potential confounders including baseline comorbid conditions, patient demographics, and payer status, the marijuana users prior to MI had a 17% reduction in in-hospital mortality, were 20% less likely to undergo intra-aortic balloon pump placement, and had a 26% reduction in shock. …

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