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Comparison Of Hemodynamic And Clinical Outcomes Between Bovine Pericardial And Porcine Aortic Valves In Aortic Valve Replacement
Sang Yoon Kim, Jun Sung Kim, Kay-Hyun Park, Cheong Lim.
Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of.

OBJECTIVE: This study aims to identify hemodynamic and clinical difference between bovine pericardial and porcine aortic valves in aortic valve replacement from single-center cohort.
METHODS: From December 2003 through June 2022, a total of 148 patients (110 bovine group and 38 porcine group) underwent isolated aortic valve replacement with tissue valve in our center. Immediate postoperative outcomes, long-term survival and major adverse valve-related events (MAVRE) were compared between the two groups. Echocardiographic results were compared at the timing of discharge and 1-year after operation.
RESULTS: While the preoperative and intraoperative characteristics were comparable between the two groups, except for NYHA functional class, which was more higher in bovine pericardial group, early postoperative outcomes did not differ. Overall survival and MAVRE were not significantly different. In echocardiographic results, moderate or more stenosis of bioprosthetic aortic valve was more frequently observed in porcine group, which was persistent in postoperative 1-year follow-up.
CONCLUSIONS: Although early and long-term clinical outcomes did not differ between the bovine pericardial valve and the porcine aortic valve, the bovine pericardial valve provided superior hemodynamic function with lower degree of bioprosthetic aortic valve stenosis.


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