Calcium channel blocker use and outcomes following transcatheter aortic valve intervention for aortic stenosis.

Calcium channel blockers (CCBs) are commonly used to treat coronary artery disease (CAD). The effects of the use of CCBs on the prognosis of patients with aortic stenosis (AS) after transcatheter aortic valve intervention (TAVI) has not been explored. This study elucidated the effects of the use of CCBs on clinical outcomes of patients who underwent TAVI for severe AS. This retrospective observational study included 993 consecutive patients who underwent TAVI for severe AS between January 2017 and July 2023. All patients were followed up for all-cause mortality and hospitalisation for heart failure. Composite endpoints between patients with and without CCBs at discharge were compared using propensity score matching (PSM). CCBs were administered to 590 (59.4%) patients following TAVI. Over a median follow-up period of 719 (335-1,120) days, the composite endpoint occurred in 269 patients. After PSM, there was no significant difference in the composite endpoint between the two groups (hazard ratio = 0.879; p = 0.409). Subgroup analysis revealed that the use of CCBs was associated with a better prognosis in the CAD subgroup (p for interaction = 0.002). This study does not suggest that the use of CCBs is associated with worse clinical outcomes in patients after TAVI for severe AS. Additionally, the use of CCBs may lead to a better prognosis in patients with CAD.