Eating fish does not correct the abnormal heart rhythm.
NEW YORK There are many good reasons to eat fish, but the prevention of abnormal heart rhythms do not seem to be one of them, according to a new study.
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The team of Dr. Jarrett D. Berry, Southwestern Medical School at the University of Texas at Dallas, found no relationship between the amount of fish (not fried) and postmenopausal women who ate the risk of developing atrial fibrillation, a heart rhythm disorder.
A quarter of the population will develop atrial fibrillation at some point, the team said in the American Journal of Cardiology and online pharmacy.
This disorder occurs when the heart’s two upper chambers quiver instead of contracting rhythmically. That causes blood to accumulate in the atria and the heart does not pump properly to the body, raising the risk of blood clots and stroke (CVA).
There is evidence that omega-3 fatty acids present in fish or supplements reduce the risk of developing atrial fibrillation, but other studies have not confirmed them.
The team studied 44,720 participants from the Women’s Health Initiative, composed of postmenopausal women aged 50 to 79 years. During the follow-up over six years, 378 (less than 1 percent) developed atrial fibrillation.
Less than 5 percent ate five or more servings of fish per week and the average consumption was 1.5 servings a week. But the researchers found no relationship between how much fish or omega-3 consumed and the risk of developing atrial fibrillation.
The team concluded that the findings “provide no evidence” that the omega-3 fatty acids or fish consumption modify the risk of a healthy woman developed atrial fibrillation in menopause.
SOURCE: American Journal of Cardiology, online February 8, 2010.
