Dynamics of paroxysmal atrial fibrillation with patients the ischemic heart disease after coronary bypass surgery

Abstract

Dynamics of paroxysmal atrial fibrillation (PAF) in two groups of the ischemic heart disease patients was analyzed during three year follow-up period. The 1st group included 115 patients with preoperative PAF that had undergone coronary bypass grafting (CBG); 149 patients of the 2nd group who had received treatment by medication. The risk transformation of PAF in the permanent form was calculated with the use of indications having been distinguished through multivariate analysis. In the CAG patients the risk index was calculated also three months after surgery. It was found that CAG surgery is followed by significant positive dynamics in the contraction of the left ventricular, left atrial dimension and reduction of the left atrial ectopic activity which included PAF frequency. In a three-year follow up, the risk of PAF transformation in the permanent form in the patients CAG, in comparison with those of the 2nd group on medical treatment, was significantly lower. It is shown that for prognostic purposes in aft er CAG patients it is more effective to use risk indicators registered three month after surgery. Refs 12. Tables 3.