Stopping Aspirin Tied to Quick Rise in Heart Attack, Stroke Risk


News Picture: Stopping Aspirin Tied to Quick Rise in Heart Attack, Stroke RiskBy Amy Norton
HealthDay Reporter

MONDAY, Sept. 25, 2017 (HealthDay News) — People who stop following their doctor’s advice to take a daily aspirin may see their risk of heart attack and stroke quickly rise, a new study suggests.

Low-dose aspirin is a standard therapy for people at increased risk of a heart attack or stroke. But many eventually stop taking it, or at least consider quitting, said Dr. Johan Sundstrom, the lead researcher on the new study.

Sometimes it’s because of side effects, such as upset stomach, according to Sundstrom, a professor at Uppsala University, in Sweden. Other times, he said, it’s simple “forgetfulness.”

His team wanted to find out what happened when patients quit their low-dose aspirin.

The investigators looked at medical records from more than 600,000 Swedish adults who’d been prescribed aspirin to prevent cardiovascular trouble. (In Sweden, it’s given by prescription, not over-the-counter, as in the United States.)

The researchers found that patients who quit the drug were 37 percent more likely to suffer a heart attack or stroke over the next three years, versus those who kept picking up their prescriptions.

The findings, Sundstrom said, underscore the importance of sticking with an aspirin regimen — especially for people who’ve already had a heart attack or stroke.

In those cases, aspirin is being given for “secondary prevention” — to lower the risk of a repeat heart attack or stroke. Studies have found aspirin to be particularly effective for those patients.

Dr. Nieca Goldberg, a spokesperson for the American Heart Association, agreed.

She also pointed out that the risks associated with quitting aspirin seem to go up quickly, and then stay elevated.

“There is evidence that once you stop aspirin, the blood’s clotting tendency goes up,” said Goldberg. She is medical director of the Women’s Heart Program at NYU Langone Medical Center in New York City.

That’s called a “rebound effect,” she said.

The message, according to Goldberg, is straightforward: “If you’ve been prescribed aspirin to prevent cardiovascular disease,” she said, “don’t stop taking it without talking to your doctor first.”

The findings, published in the Sept. 26 issue of Circulation, are based on records from over 601,000 patients aged 40 and up. All were on low-dose aspirin to begin with, but over three years, about 15 percent stopped taking it.

During that same period, there were nearly 62,700 heart attacks, strokes or deaths from cardiovascular causes.

Overall, the study found, those risks were 37 percent greater for patients who’d quit aspirin.

Quitting was more risky for patients using aspirin for secondary prevention. For every 36 patients who dropped their aspirin regimen, there was one additional cardiovascular complication each year.

Quitting was also a gamble for patients on aspirin to prevent a first-time heart attack or stroke. For every 146 of those patients, there was one additional cardiovascular complication per year, the findings showed.

Aspirin can cause side effects, like stomach upset. If that’s the case, Goldberg said, talk to your doctor. There may be a simple fix, such as taking the medication with food.

Sometimes the side effect is not due to aspirin, but to another medication or supplement — or combination thereof, she noted.

Another issue, Goldberg said, is that because aspirin is so basic, people do not always appreciate how important it is in cutting heart disease and stroke risk.

“It’s not ‘just’ aspirin,” she said. “And quitting it could be harmful.”

MedicalNews
Copyright © 2017 HealthDay. All rights reserved.

SOURCES: Johan Sundstrom, M.D., Ph.D., professor, epidemiology, Uppsala University, Sweden; Nieca Goldberg, M.D., spokesperson, American Heart Association, and medical director, Women’s Heart Program, NYU Langone Medical Center, New York City; Sept. 26, 2017, Circulation

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