Background: Transcatheter aortic valve implantation (TAVI) is an established treatment for symptomatic patients with severe aortic stenosis (AS). Sometimes patients with severe AS taking immunosuppressants are encountered. The effect of immunosuppressive therapy on clinical outcomes in patients with AS following TAVI were investigated.
Methods and results: In total, 282 consecutive patients with severe AS who underwent transfemoral TAVI from January 2016 to December 2018 at St. Marianna University School of Medicine were reviewed. They were divided into 2 groups: the immunosuppressants group (IM group) in which patients continually used immunosuppressive drugs (n=22) and the non-immunosuppressants group (non-IM group) (n=260). The composite endpoints of a major adverse cardiovascular and cerebrovascular event (MACCE) defined as non-lethal myocardial infarction, unstable angina pectoris, heart failure requiring hospitalization, stroke, and cardiovascular death were evaluated. There were no differences in the incidence of vascular access complications (32% vs. 20%, P=0.143) and the rate of procedure success (100% vs. 93%, P=0.377) between the IM and non-IM groups. During the median follow-up period of 567 (16-1,312) days after the TAVI procedure, there were no significant differences between the IM and non-IM groups in the incidence of infectious complications (14% vs. 9%, P=0.442) or MACCE (18% vs. 20%, respectively; P=0.845).
Conclusions: The use of IM after TAVI is not associated with increased vascular access complications or mid-term MACCE in patients with severe AS treated with TAVI.
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