| Artificial mitral valve chordae: experimental and clinical experience. | |
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MedLine Citation:
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PMID: 2400256 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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C Zussa; R W Frater; E Polesel; M Galloni; C Valfré |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 50 ISSN: 0003-4975 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 1990 Sep |
Date Detail:
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Created Date: 1990-10-16 Completed Date: 1990-10-16 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 15030100R Medline TA: Ann Thorac Surg Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 367-73 Citation Subset: AIM; IM |
Affiliation:
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Division of Cardiac Surgery, Regional Hospital, Treviso, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Animals Calcinosis / surgery Chordae Tendineae / surgery* Dogs Female Follow-Up Studies Heart Valve Prosthesis Humans Male Middle Aged Mitral Valve Insufficiency / surgery* Polytetrafluoroethylene Recurrence Sheep Sutures* |
| Chemical | |
Reg. No./Substance:
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9002-84-0/Polytetrafluoroethylene |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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