Transcatheter Aortic Valve Replacement (TAVR/TAVI)

Mostly used for severe aortic stenosis with symptoms, and comprehensive assessment showing high surgical risk or unfavorable access; some medium-risk patients can also be discussed by the cardiac team. The decision focuses on annulus size and calcification distribution, coronary ostia and vascular access conditions, combined diseases and self-care ability, and the feasibility of postoperative antithrombotic therapy.