New Research Shows Beta-Blockers Might Not Always Be Helpful After a Heart Attack

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content.Beta-blockers work by blocking the effect of adrenaline on the heart muscle, and slow down the heart rateheart attacks

Beta-blockers work by inhibiting the release of certain hormones, such as adrenaline, that speed up the heart. While they’re generally considered safe, they can cause side effects such as wheezing, erectile dysfunction, and fatigue.for all heart attack patients, but the researchers noted that the protocol stems from studies conducted before the emergence of newer treatments improving heart attack outcomes.

The study occurred between 2017 and 2023, and researchers followed up with participants after an average of 3.5 years. They found that participants who took beta-blockers didn’t fare much better than those who didn’t, with 3.9% of the beta-blocker group dying from any cause vs. 4.1% of the other group. The percentage of these two groups that had another heart attack were 4.5% and 4.7%.

He also pointed out that the study wasn’t placebo-controlled, though he doesn’t think this would have introduced bias that could’ve influenced results.

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