Abstract:
BACKGROUND:Previous studies have suggested that n-3 polyunsaturated fatty acids (n-3 PUFAs) have antiarrhythmic effects on atrial fibrillation (AF). We aimed to assess the effects of therapy with n-3 PUFAs on the incidence of recurrent AF and on postoperative AF. METHODS AND RESULTS:Electronic searches were conducted in Web of Science, Medline, Biological Abstracts, Journal Citation Reports, and the Cochrane Central Register of Controlled Trials databases. In addition, data from the recently completed FORωARD and OPERA trials were included. We included randomized controlled trials comparing treatment with n-3 PUFAs versus control to (1) prevent recurrent AF in patients who underwent reversion of AF or (2) prevent incident postoperative AF after cardiac surgery. Of identified studies, 12.9% (16 of 124) were included, providing data on 4677 patients. Eight studies (1990 patients) evaluated n-3 PUFA effects on AF recurrence among patients with reverted AF and 8 trials (2687 patients) on postoperative AF. Pooled risk ratios through random-effects models showed no significant effects on AF recurrence (RR, 0.95; 95% CI, 0.79 to 1.13; I(2), 72%) or on postoperative AF (0.86; 95% CI, 0.71 to 1.04; I(2), 53.1%). A funnel plot suggested publication bias among postoperative trials but not among persistent AF trials. Meta-regression analysis did not find any relationship between doses and effects (P=0.887 and 0.833 for recurrent and postoperative AF, respectively). CONCLUSIONS:Published clinical trials do not support n-3 PUFAs as agents aimed at preventing either postoperative or recurrent AF. CLINICAL TRIAL REGISTRATION:URL: http://www.crd.york.ac.uk/PROSPERO. Unique Identifier: CRD42012002199.
journal_name
J Am Heart Assocjournal_title
Journal of the American Heart Associationauthors
Mariani J,Doval HC,Nul D,Varini S,Grancelli H,Ferrante D,Tognoni G,Macchia Adoi
10.1161/JAHA.112.005033subject
Has Abstractpub_date
2013-02-19 00:00:00pages
e005033issue
1issn
2047-9980pii
2/1/e005033journal_volume
2pub_type
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