What are the predictors of coronary obstruction following transcatheter aortic valve replacement for degenerative bioprosthetic surgical valves?
Prior stentless or stented bioprostheses with externally mounted leaflets and a short VTC distance are key predictors of life-threatening coronary obstruction during aortic valve-in-valve procedures.
Coronary obstruction following aortic ViV procedures is a life-threatening complication that occurred more frequently in patients with prior stentless or stented bioprostheses with externally mounted leaflets and in those with a short VTC.
Ribeiro et al. (Wed,) studied this question.