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Ann Thorac Surg 1980;30:247-258
© 1980 The Society of Thoracic Surgeons

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Articles

Considerations in Selection and Management of Patients Undergoing Valve Replacement with Glutaraldehyde-Fixed Porcine Bioprostheses

From the Departments of Surgery and Biostatistics, University of Alabama School of Medicine and Medical Center, Birmingham, AL

^* Address reprint requests to Dr. Karp, Department of Surgery, University of Alabama Medical Center, University Station, Birmingham, AL 35294

	Abstract

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From November, 1973, through June, 1978, 428 operations in 425 patients were performed for replacement of aortic, mitral, or aortic plus mitral valves, utilizing 277 Hancock and 180 Carpentier-Edwards bioprostheses. Actuarially determined survival at 36 months was similar for all three groups and compared favorably with our experience with the Björk-Shiley prosthesis. Certain patient-related variables influencing late survival were identified by multivariate analysis and included previous operation for congenital heart disease, coronary artery bypass grafting in nonaortic valve replacement, race (black), age at operation, and New York Heart Association Functional Class. A small but definite incidence of thromboembolism occurred in all three groups, again similar to our experience with the Björk-Shiley prosthesis. Multivariate analysis identified four factors influencing risk of thromboembolism: previous cardiac operation, age, double-valve replacement, and rhythm at discharge. Valve degeneration occurred, primarily in children and young adults. Over the medium term, the porcine bioprosthesis compared favorably with mechanical prostheses in terms of survival, function, and thromboembolism. Certain patient-related variables affecting survival may be modified by earlier surgical intervention.

	Footnotes

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Presented at the Sixteenth Annual Meeting of The Society of Thoracic Surgeons, Jan 21–23, 1980, Atlanta, GA.

	References

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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Williams, J. B. Articles by Bradley, E. L. Search for Related Content PubMed PubMed Citation Articles by Williams, J. B. Articles by Bradley, E. L.