Monday, March 23, 2009

Revised guidelines on daily aspirin for your heart


I read an article in Health news that reinforced what my Doctor has been telling me for years.

Who should take an aspirin each day to fight heart disease, and at what dose? The latest guidelines say that lower doses are as effective as higher doses and safer at preventing heart attack and stroke.

The new U.S. Preventive Services Task Force guidelines match age and gender. Aspirin seems to be more effective in men for preventing heart attack but, in women, better at preventing stroke.

Dr. Carl J. Lavie, medical director of cardiac rehabilitation at the Ochsner Heart and Vascular Institute in New Orleans, added: "The benefits of aspirin use always have to be balanced against the risks. If a patient has low risk of events in the near future, aspirin should not be prescribed. If the risk is very high, clearly aspirin is needed."

The recommendations, published in the March 17 issue of the Annals of Internal Medicine, state:

Men aged 45 to 79 with heart risk factors should take aspirin if the preventive benefits outweigh the risk of bleeding.

At-risk women aged 55 to 79 should take aspirin if the odds of reducing a first ischemic stroke outweigh the chance of bleeding.

Men under the age of 45 and women under 55 who have never had a heart attack or stroke should not take aspirin for prevention.

At this time, it isn't clear whether patients aged 80 and older should take aspirin.

The task force emphasized that the recommendations only apply to people who have never had a heart attack or stroke.

The last task force recommendations came out in 2002. At the time, the panel acknowledged that the evidence for the use of aspirin in preventing heart problems was still evolving.

A second paper in the same issue of the journal reaffirms the task force guidelines, finding that lower doses of daily aspirin (75 milligrams to 81 milligrams) are equally, if not more effective, than higher doses (100 mg or more) in preventing heart attack and stroke in at-risk individuals

The paper also found that high doses may actually do more harm, especially in people taking Plavix.

According to background information in the study, aspirin is the most used drug worldwide to prevent heart attack and stroke. More than one-third of U.S. adults are believed to take aspirin each day.

"All these trials put together really favor taking lower doses of aspirin," said Dr. Suzanne Steinbaum, director of women and heart disease at Lenox Hill Hospital in New York City.

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