Contact pathway in surgical and transcatheter aortic valve replacement.

Background: Aortic valve replacement is the gold standard treatment for severe symptomatic aortic stenosis, but thrombosis of bioprosthetic valves (PVT) remains a concern.

Objective: To analyze the factors involved in the contact pathway during aortic valve replacement and to assess their impact on the development of thromboembolic complications.

Methods: The study was conducted in 232 consecutive patients who underwent: transcatheter aortic valve replacement (TAVR, = 155), and surgical valve replacement (SAVR, = 77) (MUVITAVI project).