A cardiologist's nightmare: Coronary obstruction during transcatheter aortic valve implantation: How to identify patients at highest risk for this complication.

Transcatheter aortic valve implantation (TAVI) is associated with several complications including coronary obstruction (CO) CO occurs in ∼1% of patients and mostly in patients receiving the SAPIEN XT valve Possible predictors of CO include coronary height <10 mm and aortic sinus diameter of <30 mm.