Discussion
This 3-center retrospective registry demonstrated 3 main findings: 1) implantation depth - MS length and severe LVOT calcification were independent predictors of new CD in BAV; 2) when comparing matched BAV and TAV group, MS length was not different, but the incidence of new CD was higher in the patients with BAV, 3) BAV anatomy resulted in a deeper valve implantation, which may explain the increased incidence of CD