Document Detail

Mitral valve repair for anterior leaflet prolapse with expanded polytetrafluoroethylene sutures.
MedLine Citation:
PMID:  16631647     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: This study was a long-term Doppler echocardiographic assessment of mitral valve repair for anterior mitral leaflet prolapse using expanded polytetrafluoroethylene sutures. METHODS: Between April 1992 and December 2003, we performed mitral valve repair using expanded polytetrafluoroethylene sutures in 204 patients (mean age, 54.6 years) with severe mitral regurgitation (MR) having anterior mitral leaflet prolapse. The cause of valve disease was degenerative in 181 patients (88.7%). Postoperative serial transthoracic echocardiographic studies were performed in all hospital survivors. Residual MR flow detected by color Doppler echocardiography was classified according to the maximum regurgitant jet area. RESULTS: The 30-day mortality of 204 patients was 1.4% (3 deaths). There were 12 late deaths and 14 reoperations in this series. Kaplan-Meier survival and freedom from reoperation at 12 years were 84.6% +/- 4.0% and 89.9% +/- 2.9%, respectively. Postoperative transthoracic echocardiographic assessment after discharge (mean follow-up, 4.2 +/- 3.0 years) showed less than mild regurgitation (maximum regurgitant jet area < 4.0 cm2) in 80.9% of the patients. Overall, freedom from severe MR (maximum regurgitant jet area > or = 7.0 cm2) estimates at 12 years were 88.1% +/- 3.1%. Freedom from severe MR at 12 years for 114 patients with no MR (maximum regurgitant jet area = 0 cm2) on intraoperative transesophageal echocardiography and 77 patients with MR was 95.3% +/- 2.1% and 82.9% +/- 5.1%, respectively (p = 0.033). CONCLUSIONS: Twelve-year echocardiographic follow-up demonstrates good long-term results of chordal replacement with expanded polytetrafluoroethylene sutures for anterior mitral leaflet prolapse. To avoid recurrence of regurgitation, a significantly high level of competence of the valve is essential in the repair of anterior mitral leaflet prolapse.
Hitoshi Kasegawa; Tomoki Shimokawa; Ikuko Shibazaki; Hiroki Hayashi; Toshiya Koyanagi; Takao Ida
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  81     ISSN:  1552-6259     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-04-24     Completed Date:  2006-05-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1625-31     Citation Subset:  AIM; IM    
Department of Cardiovascular Surgery, Sakakibara Heart Institute, Tokyo, Japan.
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MeSH Terms
Chordae Tendineae / surgery*
Echocardiography, Doppler, Color
Logistic Models
Magnetic Resonance Angiography
Middle Aged
Mitral Valve Prolapse / surgery*,  ultrasonography
Reg. No./Substance:

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