| Long-term experience with the Ionescu-Shiley pericardial valve. | |
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MedLine Citation:
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PMID: 7646174 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To determine the long-term durability of the Ionescu-Shiley valve, we analyzed our experience with this valve at the University of Ottawa Heart Institute. To 1988, 780 patients have had aortic valve replacement (AVR = 528) or mitral valve replacement (MVR = 252). Of the aortic valves, 310 were standard profile and 218 were low profile. Of the mitral valves, 143 were standard profile and 109 were low profile. Actuarial survival at 10 years was as follows: AVR, 62% +/- 3%; MVR, 58% +/- 4%; p = 0.42. At 14 years, the results were AVR, 44% +/- 1% and MVR, 46% +/- 5%; p = 0.40. Reoperation was required in 197 patients. Structural failure was present in 85% of these valves, with leaflet tears alone in 69%, tears with calcification in 21%, and calcification alone in 10%. Leaflet tears occurred in 95% after AVR and in 78% after MVR (p = 0.006) and were seen in 95% of low-profile valves and 87% of standard-profile valves (p = 0.16). The actuarial freedom from reoperation at 10 years was: AVR, 58% +/- 3%; MVR, 62% +/- 5%; p = 0.49. At 13 years, these rates were 38% +/- 4% for AVR and 25% +/- 9% for MVR (p = 0.79). For AVR, the 10-year rate of freedom from reoperation was 57% +/- 4% for standard-profile valves and 57% +/- 8% for low-profile valves (p = 1.0). Similarly for MVR, the 10-year freedom from reoperation was 61% +/- 6% for standard-profile valves and 68% +/- 8% for low-profile valves.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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R G Masters; V M Walley; A L Pipe; W J Keon |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 60 ISSN: 0003-4975 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 1995 Aug |
Date Detail:
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Created Date: 1995-09-20 Completed Date: 1995-09-20 Revised Date: 2004-11-17 |
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: S288-91 Citation Subset: AIM; IM |
Affiliation:
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Department of Surgery, University of Ottawa Heart Institute, Ottawa Civic Hospital, Canada. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Actuarial Analysis Adult Aged Aged, 80 and over Aortic Valve / surgery Bioprosthesis* / adverse effects, mortality Female Heart Valve Prosthesis* / adverse effects, mortality Hospital Mortality Humans Male Middle Aged Mitral Valve / surgery Postoperative Complications Prosthesis Design Prosthesis Failure Reoperation Survival Rate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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