Assessment of the mechanical function of the left atrium in patients with ischemic mitral regurgitation

Objective. The study was designed to investigate LA mechanical aspects in patients with IMR by using a vector analysis of endocardium rivement. Methods. 92 CHD patients aged 57.16±10.31 years, with 63 of them being males (68%), were treated at о^ center over a perbd of 2013-2014. The inclusbn criteria were: hemodynamically relevant damage of œronary arteries during œronary angbgraphy, I-III stage IMR acœrding to echocardiography, sinus rhythm of 60-89 beats per minute during examinatbn and good quality of echocardiographic visualization of endocardial LA. Results. A strong direct correlation between MP and SR at LA systole (RS=0.84) and MP and SR at LA at the œnduit phase was revealed. A reverse œrrelatbn of MP and SR о^^^ at the soaking phase (RS= -0.8) and at the reserroir phase (RS= -0.8). LA fongitu-dinal systolic deformation was significantly fow at the œntractile phase (patients with МР -6.2±4.4% vs -12±2.1% in the œntrol group, р