Luchynets O. The effectiveness of reconstruction for mitral regurgitation depending on the left ventricle function.

Thesis comprises analysis of the results of the mitral valve reconstruction in patients with mitral regurgitation based on the anamnestic and clinical data, hemodynamic parameters, functional state of the contractile ability of the left ventricle. In the presented work, the data of 218 patients with mitral valve regurgitation, who underwent reconstructive operations at the Amosov National Institute of Cardiovascular Surgery National Academy of Medical Science of Ukraine in the period from 2011 to 2015 yy., were used as clinical material. The paper presents analysis of anamnestic data, clinical data, indexes of intracardiac hemodynamics, functional state of patients before and after surgery, and also determines the effect of left ventricle myocardial contractility on the results in the immediate and long-term postoperative periods. There were analyzed the rates and causes of complications and negative outcomes in the immediate and long-term periods, after mitral valve reconstructive surgery. Analysis of the data of 218 patients who underwent mitral valve reconstruction showed that in 48 (22.1%) cases there were signs of impaired contractility of the left ventricle. The group of patients with left ventricle systolic dysfunction (EF<50%) was characterized by a high rate of left bundle branch block - 24 (50,0%) and atrial fibrillation - 24 (50,0%) cases, with the greatest duration of the arrhythmia itself - 6,8 ± 2, 4 months. More expressed left ventricle dilatation - CDI 132.3 ± 38.0 ml / m2 – was combined with a high degree of pulmonary hypertension - 52.8 ± 11.0 mm Hg.