Left ventricular asynergy in mitral valve diseases. A cineangiographic study.
Mode of left ventricular contraction was studied by cine left ventriculography in 22 cases with mitral valve diseases and 7 control cases. In rheumatic mitral valve diseases, local hypokinesis of the left ventricular wall and poor contraction of the mitral annulus were observed frequently, at various location and to various extent. Transient asynergic motion of local wall was also seen either during systole or during diastole. Local hypokinesis was seen even in normal-sized left ventricles, and was associated with decreased cardiac pump performance, when its localization was extensive. Severe mitral regurgitation of rheumatic nature was always associated with poor contraction of the mitral annulus, although the reverse was not true.
D000293:Adolescent; D000328:Adult; D002302:Cardiac Output; D002306:Cardiac Volume; D002932:Cineangiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000503:physiopathology; D008944:Mitral Valve Insufficiency / Q000503:physiopathology*; D008946:Mitral Valve Stenosis / Q000503:physiopathology*; D009200:Myocardial Contraction