Local myocardial contractility in patients with coronary heart disease and chronic heart failure

: The aim of the study was to evaluate the peculiarities of local left and right ventricular myocardial contractility in patients with coronary heart disease (CHD) and various degrees of chronic heart failure (CHF) using biventricular radioventriculography (RVG). Local left and right ventricular myocardial contractility was evaluated in 127 patients with CHD and CHF using RVG with a standard procedure of segmentary and phase histogram analysis. The patients were divided into two groups according to left ventricular ejection fraction (LVEF). Group I consisted of 89 CHD patients with NYHA II-III CHF and LVEF of > 40%; group II included 38 CHD patients with NYHA III-IV CHF and LVEF of < 40%. The significant decrease of LVEF in group II was caused by the prevalence of hypo- and akinetic segments in the structure of local contractility. In both groups total LVEF was maintained by lateral wall segments. Right ventricular contractility in patients with CHD and CHF was maintained by anteroseptal segments.