Mi Chen, Jonathan M Michel, Barbara E Stähli, Felix C Tanner, Albert Markus Kasel
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Role of imaging in third aortic valve implantation: TAV-in-TAV-in-SAV.
Coronary obstruction remains a primary concern for redo transcatheter aortic valve implantation (TAVI) due to supra-annular leaflets. Hereby, we present two valve-in-valve-in-valve cases, initially incorporating a surgical valve implanted to clarify our concept that the surgical valve serves to safeguard against the coronary ostium obstruction.