Document Detail


The flail mitral valve: echocardiographic findings by precordial and transesophageal imaging and Doppler color flow mapping.
MedLine Citation:
PMID:  1987236     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To determine the echocardiographic and Doppler characteristics of mitral regurgitation associated with a flail mitral valve, precordial and transesophageal echocardiography with pulsed wave and Doppler color flow mapping was performed in 17 patients with a flail mitral valve leaflet due to ruptured chordae tendineae (Group I) and 22 patients with moderate or severe mitral regurgitation due to other causes (Group II). Echocardiograms were performed before or during cardiac surgery; cardiac catheterization was also performed in 28 patients (72%). Mitral valve disease was confirmed at cardiac surgery in all patients. By echocardiography, the presence of a flail mitral valve leaflet was defined by the presence of abnormal mitral leaflet coaptation or ruptured chordae. Using these criteria, transesophageal imaging showed a trend toward greater sensitivity and specificity than precordial imaging in the diagnosis of flail mitral valve leaflet. By Doppler color flow mapping, a flail mitral valve leaflet was also characterized by an eccentric, peripheral, circular mitral regurgitant jet that closely adhered to the walls of the left atrium. The direction of flow of the eccentric jet in the left atrium distinguished a flail anterior from a flail posterior leaflet. By transesophageal echocardiography with Doppler color flow mapping, the ratio of mitral regurgitant jet arc length to radius of curvature was significantly higher in Group I than Group II patients (5.0 +/- 2.3 versus 0.7 +/- 0.6, p less than 0.001); all of the Group I patients and none of the Group II patients had a ratio greater than 2.5.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
R B Himelman; F Kusumoto; K Oken; E Lee; M K Cahalan; P M Shah; N B Schiller
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  17     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  1991 Jan 
Date Detail:
Created Date:  1991-02-21     Completed Date:  1991-02-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  272-9     Citation Subset:  AIM; IM    
Affiliation:
Department of Medicine, University of California, San Francisco 94133.
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MeSH Terms
Descriptor/Qualifier:
Chordae Tendineae
Echocardiography / methods*
Echocardiography, Doppler*
Humans
Middle Aged
Mitral Valve / ultrasonography*
Mitral Valve Insufficiency / etiology,  ultrasonography*
Rupture, Spontaneous
Sensitivity and Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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