[Comparative aspects of the structural and functional status of the myocardium in left-ventricular asymmetrical myocardial hypertrophy in patients with hypertension and cardiomyopathy].

Abstract

23 patients with hypertrophic cardiomyopathy (HCMP) and 19 patients with stage II of essential hypertension (EH) with left ventricular asymmetric hypertrophy (ASH) were examined. Echocardiography demonstrated significantly more manifest hypertrophy of interventricular septum and higher coefficient of asymmetry in patients with HCMP compared to those with EH while left ventricular myocardium mass was equal in both groups. Phase-volumetric analysis exhibited in all the patients deterioration of myocardial relaxation processes. EKG-monitoring showed a significant increase in frequency of supraventricular rhythm disturbances in patients with HCMP while no reliable differences in total frequency of rhythm and conduction disturbances were registered. Regular adequate antihypertensive therapy resulted in patients with EH in decrease of ASH degree caused by regression of interventricular septum hypertrophy. In natural course of EH the ASH degree also decreased, but in this case because of increased hypertrophy of left ventricular posterior wall. The patients with HCMP were followed for 1-1.5 years. Drug therapy produced no significant changes in left ventricular myocardium mass as well as character of degree of ASH.