[Types of left ventricular hypertrophy and their functional changes in essential hypertension].
104 patients of hypertensive left ventricular hypertrophy (LVH) were studied by two-dimensional echocardiography. According to the changes of left ventricular wall thickness, wall mass, end-diastolic volume and ejection fraction, they were divided into three types (concentric, dilated, disproportionate): (1) Concentric LVH 83 cases (79.8%) with thickened ventricular wall and augmented mass. (2) Dilated LVH 13 cases (12.5%) with left ventricular cavity enlarged and both ventricular mass and volume increased, ejection fraction decreased. (3) Disproportionate LVH 8 cases (7.7%), similar to hypertrophic cardiomyopathy with excess increase in interventricular septal thickness. The thickness ratio between interventricular septal and left ventricular posterior wall was greater than or equal to 1.3.
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006332:Cardiomegaly / Q000209:etiology / Q000503:physiopathology*; D004452:Echocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles; D006801:Humans; D006973:Hypertension / Q000150:complications*; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology; D013318:Stroke Volume