Ex Vivo Analysis of a Porcine Bicuspid Aortic Valve and Aneurysm Disease Model.

Zhu, Yuanjia; Imbrie-Moore, Annabel M; Park, Matthew H; Paulsen, Michael J; Wang, Hanjay; MacArthur, John W; Woo, Y Joseph · Ann Thorac Surg · 2021

case_report · Level V

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Abstract

We identified an extremely rare congenital porcine type 0 lateral bicuspid aortic valve from a fresh porcine heart. Using a 3-dimensionally printed ex vivo left heart simulator, we analyzed valvular hemodynamics at baseline, in an aortic aneurysm disease model, and after valve-sparing root replacement. We showed that bicuspid aortic valve regurgitation due to aortic aneurysm can be successfully repaired without significant hemodynamic impairment using the valve-sparing root replacement technique in an individualized approach. Our results provide direct hemodynamic evidence supporting the use of valve-sparing root replacement for patients with bicuspid aortic valve regurgitation.

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