Porcine vs Bovine Bioprosthetic Aortic Valves: Long-Term Clinical Results.

The Annals of Thoracic Surgery
Michael PerssonUlrik Sartipy

Abstract

Previous studies have reported superior hemodynamic performance with bovine bioprosthetic aortic valves compared with porcine valves. However, conflicting results mean the long-term effect on survival is not well known. The aim of this study was to examine long-term survival, rate of aortic valve reoperations, and heart failure hospitalizations after surgical aortic valve replacement (AVR) with porcine vs bovine bioprosthetic valves. This was a population-based cohort study including all patients who had undergone AVR in Sweden from 1995 to 2012, with or without concomitant coronary artery bypass grafting. Patients were identified through the SWEDEHEART (Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies) registry. Baseline and outcome data were gathered from national registries. Propensity scores and inverse probability of treatment weighting were used to control for intergroup differences. Analyses accounted for competing risk of death when appropriate. A total of 12,845 patients underwent AVR with porcine (n = 4198) or bovine (n = 8647) prostheses. We found a small but significant difference in mortality favoring porcine prostheses: 78% vs 7...Continue Reading

References

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Citations

Sep 9, 2020·The Annals of Thoracic Surgery·Dominic Emerson, Joanna Chikwe

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