| The Ultracor tilting disc heart valve prosthesis: a seven-year study. | |
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MedLine Citation:
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PMID: 9870199 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND AIM OF THE STUDY: The Ultracor heart valve is a recent entry in the evolution of the tilting disc valve. This report summarizes the experience with the Ultracor valve from three European centers. METHODS: Between 1990 and 1996, 446 patients received 499 Ultracor heart valve prostheses in 450 procedures, including 225 (50.0%) aortic, 172 (38.2%) mitral and 49 (10.9%) double valve replacements. An additional four (1.0%) patients had mitral valve replacement (MVR) added to a previous aortic valve replacement (AVR) and were considered double valve replacement (DVR) patients. The total follow up was 751 patient-years (pt-yr) for AVR (mean 3.4), 440 pt-yr for MVR (mean 2.6) and 125 pt-yr for DVR (mean 2.4). Nine patients (one AVR, eight MVR) were lost to follow up, which was 98% complete. RESULTS: The actuarial survival rate, including operative mortality rate, at five years was 90% for AVR, 77% for MVR and 82% for DVR. The linearized complication rates (%/year) for AVR, MVR and DVR were: 2.1, 4.0 and 4.0 for late mortality; 0.1, 3.0 and 0.8 for thromboembolism; 0, 0.2 and 0 for thrombosis; 2.0, 1.6 and 1.6 for anticoagulant-related hemorrhage (ACH); 0.3, 0.5 and 1.6 for prosthetic valve endocarditis (PVE); and 0.5, 0.9 and 3.2 for reoperation, respectively. The actuarial rates of freedom from complications at five years were: thromboembolism, 99% for AVR and 88% for MVR; thrombosis, 100% for AVR and 99% for MVR; ACH, 91% for AVR and 94% for MVR; PVE, 99% for AVR and 97% for MVR; reoperation, 98% for AVR and 98% for MVR. No structural failure was observed. CONCLUSIONS: Seven years' experience showed the Ultracor heart valve prosthesis to be comparable with other currently used mechanical heart valves. Continued evaluation of this prosthesis is warranted in order to obtain a more extended clinical follow up. |
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Authors:
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H H Li; R R Jeffrey; K G Davidson; D Seifert; R Körfer; G L Grunkemeier |
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Publication Detail:
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Type: Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of heart valve disease Volume: 7 ISSN: 0966-8519 ISO Abbreviation: J. Heart Valve Dis. Publication Date: 1998 Nov |
Date Detail:
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Created Date: 1999-03-04 Completed Date: 1999-03-04 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9312096 Medline TA: J Heart Valve Dis Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 647-54 Citation Subset: IM |
Affiliation:
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Providence Health System, Portland, Oregon, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aortic Valve Aortic Valve Insufficiency / surgery Aortic Valve Stenosis / surgery Evaluation Studies as Topic Female Heart Valve Diseases / mortality, surgery* Heart Valve Prosthesis* Humans Male Middle Aged Mitral Valve Prosthesis Design Retrospective Studies Survival Rate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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