Omega-3 Does Not Prevent Atrial Fibrillation – Part 2 of 3
Participants were randomized to receive either a placebo or 8 grams of omega-3 supplements daily for the first week, followed by 4 grams a epoch for the remaining 23 weeks of the trial. The doses used in the study are available only by prescription and are “higher than doses previously published in studies,” said Dr Robert Block, a cardiologist and aide-de-camp professor of community and preventive medicine at the University of Rochester Medical Center.
At the end of six months, 46 percent of those in the placebo group and 52 percent of those taking omega-3 supplements sage recurrences. The numbers of paroxysmal AF patients in the placebo and treatment groups who had AF recurrences were about equal (48 percent and 52 percent, respectively), the investigators found.
In patients with rigid AF, more patients in the omega-3 arm had recurrences than in the placebo group (50 percent and 33 percent, respectively). But experts haven’t ruled out a admissible role for omega-3 in other types of patients, such as those with heart failure. “Our data do not speak to other cardiac indications,” said Kowey, who is president of the Main Line Health Heart Center and a professor of pharmaceutical and clinical pharmacology at Jefferson Medical College in Philadelphia.