• Thorac Cardiovasc Surg · Oct 2014

    Randomized Controlled Trial

    Omega-3 polyunsaturated Fatty acids reduce the incidence of postoperative atrial fibrillation in patients with history of prior myocardial infarction undergoing isolated coronary artery bypass grafting.

    • Manuel Wilbring, Katrin Ploetze, Susann Bormann, Thomas Waldow, and Klaus Matschke.
    • Department of Cardiac Surgery, University Heart Center Dresden, Dresden, Germany.
    • Thorac Cardiovasc Surg. 2014 Oct 1;62(7):569-74.

    IntroductionThe impact of omega-3 polyunsaturated fatty acids (PUFAs) for prevention of atrial fibrillation (AF) is still part of a lively debate. The present study evaluates the impact of orally administered omega-3 ethyl ester concentrate (omega-3 PUFA) on postoperative onset of AF in patients with recent myocardial infarction (≤ 3 months) undergoing isolated coronary artery bypass grafting (CABG). Patients andMethodsThe study included a total of 198 patients with recent (≤ 3 months) myocardial infarction. The treatment group consisted of 99 prospectively and randomly assigned patients. A matched control group was generated out of the entirety of patients undergoing isolated CABG during the same time period, being not treated with omega-3 PUFA. Primary endpoint was onset of postoperative AF. Patients of the treatment group received a daily dose of 2 g omega-3 PUFA, initiated 5 days before surgery. Effective serum levels were confirmed by laboratory testing.ResultsPatients of the treatment group had less frequently postoperative AF (treatment: 31.3% vs. control: 48.0%; p = 0.017). The reduction in relative risk was 34.8% in the treatment group, which conforms a number needed to treat (NNT) of 6.0 patients. A more pronounced effect with a NNT of 4.1 was observed in patients ≤ 70 years (p = 0.007). Besides, patients of the treatment group had a shorter intensive care unit stay (p = 0.001) and suffered less frequently from impaired wound healing by trend (p = 0.063). One patient out of treatment group and two out of control group died during hospital stay (p = 1.000).ConclusionPreoperative administration of 2 g omega-3 PUFA reduces incidence of postoperative AF in patients with recent (≤ 3 months) myocardial infarction undergoing isolated CABG.Georg Thieme Verlag KG Stuttgart · New York.

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