Evaluation of the Mitral Valve Leaflet Morphology after Mitral Valve Reconstruction with a Concept "Coaptation Length Index"
- 1 November 2004
- journal article
- research article
- Published by Hindawi Limited in Journal of Cardiac Surgery
- Vol. 19 (6), 535-538
- https://doi.org/10.1111/j.0886-0440.2004.200329.x
Abstract
In clinical settings, information on morphology of mitral valve leaflet after mitral valve reconstruction is limited. Between January 1996 and June 2000, 36 underwent mitral valve repair for mitral regurgitation (MR). The etiology of mitral insufficiency was prolapse, dilated annulus, and ischemic. Ring annuloplasty was performed in all cases. Mitral valve short-axis dimension (MVd), vertical distance between annular line and closing point (Vd), coaptation length (CL), coaptation length index (CL/MVd) were measured by the two-dimensional transesophageal echocardiography for the present 11 cases. In 11 cases, residual MR, using a scale from 0 to 4, was 0 in 5 patients, 1 in 4 patients, 2 in 2 patients whose etiology of regurgitation was cardiomyopathy. MVd and Vd decreased significantly (38.7 +/- 6.2 to 27.0 +/- 5.6 mm, 10.1 +/- 7.7 to 6.5 +/- 4.6 mm, respectively). CL and CLI increased significantly (6.4 +/- 2.4 to 11.6 +/- 4.6 mm, 0.16 +/- 0.06 to 0.44 +/- 0.21, respectively). Among those index, only CLI have a statistically significant negative correlation with the degree of residual MR. The mitral valve ring annuloplasty produce the morphologic change of mitral apparatus, especially the increase of CLI, which may be one of the main factors in regulation of regurgitation.Keywords
This publication has 6 references indexed in Scilit:
- Ring annuloplasty prevents delayed leaflet coaptation and mitral regurgitation during acute left ventricular ischemiaThe Journal of Thoracic and Cardiovascular Surgery, 2000
- Cosgrove-Edwards Annuloplasty System: midterm resultsThe Annals of Thoracic Surgery, 2000
- Variations in Annuloplasty Ring and Sizer Dimensions May Alter Outcome in Mitral Valve RepairJournal of Cardiac Surgery, 1997
- Improved results with mital valve repair using new surgical techniquesEuropean Journal of Cardio-Thoracic Surgery, 1995
- Mechanism of ischemic mitral regurgitation. An experimental evaluation.Circulation, 1991
- Reconstructive surgery of mitral valve incompetenceThe Journal of Thoracic and Cardiovascular Surgery, 1980