Document Detail

Artificial mitral valve chordae: experimental and clinical experience.
MedLine Citation:
PMID:  2400256     Owner:  NLM     Status:  MEDLINE    
Failure of mitral valve reconstructive procedures often may be ascribed to severe or progressive alterations of subvalvar apparatus. Expanded polytetrafluoroethylene sutures were used to replace anterior leaflet mitral valve chordae in 8 animals (hypertensive dogs and growing sheep). After the positive results obtained during a 13-month follow-up, 5-0 sutures of the same material were introduced in clinical practice to replace mitral valve chordae. Twelve patients had two to six anterior leaflet chordae replaced for degenerative or rheumatic disease. In 3 patients, the intraoperative result was not acceptable and a prosthetic valve was inserted during the same operation. One case of late failure has been recorded so far (18 months after the procedure), owing to rupture of a natural chorda shortened at operation. Since that event, we have implanted supportive artificial chordae in case of diffuse alteration of natural chordae. The remaining patients show satisfactory hemodynamic results, and no valve-related events have been recognized up to 30 months after operation. We suggest use of 5-0 polytetrafluoroethylene sutures in replacing anterior leaflet chordae in degenerative, rheumatic, and congenital mitral valve diseases.
C Zussa; R W Frater; E Polesel; M Galloni; C Valfré
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Annals of thoracic surgery     Volume:  50     ISSN:  0003-4975     ISO Abbreviation:  Ann. Thorac. Surg.     Publication Date:  1990 Sep 
Date Detail:
Created Date:  1990-10-16     Completed Date:  1990-10-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  15030100R     Medline TA:  Ann Thorac Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  367-73     Citation Subset:  AIM; IM    
Division of Cardiac Surgery, Regional Hospital, Treviso, Italy.
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MeSH Terms
Calcinosis / surgery
Chordae Tendineae / surgery*
Follow-Up Studies
Heart Valve Prosthesis
Middle Aged
Mitral Valve Insufficiency / surgery*
Reg. No./Substance:

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