Clinical and echocardiographic characteristic of mitral valve chordae rupture.
In 23 patients with mitral valve chordae rupture, the diagnostic sensitivity, specificity and predictive accuracy of various changes found by one-dimensional echocardiography (M-echo) were determined. Nearly all M-echo changes have a relatively low sensitivity (10-50%), high specificity (80-100%) and moderate predictive accuracy (30-80%). Greater diagnostic value--moderate sensitivity, high specificity and greater predictive accuracy--is shown by the following changes: systolic mitral valve flutter, diastolic mitral leaflets flutter, paradoxical (chaotic) movement of the posterior mitral leaflet in diastole. Of very low sensitivity (10%) but high specificity (100%) are pathological systolic echo-signals in the left atrial cavity.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002815:Chordae Tendineae / Q000473:pathology*; D004452:Echocardiography; D005260:Female; D006331:Heart Diseases / Q000473:pathology*; D006333:Heart Failure / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000473:pathology*; D008944:Mitral Valve Insufficiency / Q000473:pathology; D008945:Mitral Valve Prolapse / Q000473:pathology; D008946:Mitral Valve Stenosis / Q000473:pathology; D009200:Myocardial Contraction; D010701:Phonocardiography; D012422:Rupture, Spontaneous