Can Heart Medicine Lead to Depression? Study Sheds Light
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All patients who have had a heart attack are typically treated using beta blockers. According to a Swedish study conducted earlier this year, this drug is unlikely to be needed for those heart patients who have a normal pumping ability. Now a sub-study at Uppsala University shows that there is also a risk that these patients will become depressed by the treatment.
“We found that beta blockers led to slightly higher levels of depression symptoms in patients who had had a heart attack but were not suffering from heart failure. At the same time, beta blockers have no life-sustaining function for this group of patients,” says Philip Leissner, a doctoral student in cardiac psychology and the study’s first author.
The researchers wanted to look at the side effects of beta blockers, that is, whether they affect anxiety and depression levels. Earlier this year, a major national study was conducted in Sweden, which found that those who received beta-blocking drugs were not protected from relapse or death compared to those who did not receive the drug. Leissner and his colleagues based their research on these findings and conducted a sub-study. It ran from 2018 to 2023 and involved 806 patients who had had a heart attack but no problems with heart failure. Half were given beta blockers and the other half were not. About 100 of the patients receiving beta blockers had been taking them since before the study, and the researchers observed more severe symptoms of depression in them.
“Most doctors used to give beta blockers even to patients without heart failure, but as the evidence in favour of doing so is no longer so strong, this should be reconsidered. We could see that some of these patients appear to be more at risk of depression. If the drug doesn’t make a difference to their heart, then they are taking it unnecessarily and at risk of becoming depressed,” adds Leissner.
References: Philip Leissner, Katarina Mars, Sophia Humphries, Patric Karlström, Troels Yndigegn, Tomas Jernberg, Robin Hofmann, Claes Held, Erik M G Olsson, Short- and long-term effects of beta-blockers on symptoms of anxiety and depression in patients with myocardial infarction and preserved left ventricular function: a pre-specified quality of life sub-study from the REDUCE-AMI trial, European Heart Journal. Acute Cardiovascular Care, 2024;, zuae112, https://doi.org/10.1093/ehjacc/zuae112
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