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Am Heart J. 2006 Apr;151(4):857-62.

Intake of very long-chain n-3 fatty acids from fish and incidence of atrial fibrillation. The Rotterdam Study.

Author information

1
Wageningen Centre for Food Sciences, Wageningen, The Netherlands. ingeborg.brouwer@wur.nl

Abstract

BACKGROUND:

Atrial fibrillation is the most common sustained cardiac arrhythmia. It is a major cause of morbidity and mortality through an increased risk of thromboembolic stroke. Experimental as well as observational evidence suggests that n-3 polyunsaturated fatty acids may have antiarrhythmic effects. The objective of this study was to examine whether high intakes of fish and its very long-chain n-3 fatty acids eicosapentaenoic acid (EPA) plus docosahexaenoic acid (DHA) are associated with risk of incident atrial fibrillation.

METHODS:

We used data from the Rotterdam Study, a prospective cohort study. At baseline, dietary intake data were available for 5184 subjects free from atrial fibrillation. Dietary intake was assessed using a semiquantitative food-frequency questionnaire, and incidence of atrial fibrillation was continuously monitored during follow-up. Cox proportional hazards model (adjusted for lifestyle and disease factors) was used to examine the associations between intakes of EPA plus DHA and of fish with atrial fibrillation.

RESULTS:

After a mean follow-up of 6.4 (+/-1.6) years, 312 subjects developed atrial fibrillation. Intake of EPA and DHA in the third textile compared with first was not associated with risk of atrial fibrillation (relative risk 1.18, 95% CI 0.88-1.57). Furthermore, no association was observed with intake of >20 g/d fish compared with no fish intake (relative risk 1.17, 95% CI 0.87-1.57).

CONCLUSIONS:

In this study, intakes of EPA and DHA and the consumption of fish were not associated with the onset of atrial fibrillation. This finding does not support that n-3 fatty acids have a general antiarrhythmic effect.

PMID:
16569549
DOI:
10.1016/j.ahj.2005.07.029
[Indexed for MEDLINE]
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