Permanent pacemaker implantation
The primary endpoint of the study was PPI within 30 days after TAVR. The indications for PPI following TAVR were: persistent high degree atrioventricular block (AVB), new onset alternating bundle branch block, pre-existing right bundle branch block (RBBB) with new post-procedure conduction disturbance. Among the 179 included in the study, 48 had previous CAs (11 1st degree AVB, 31 right or left bundle branch block (RBBB or LBBB), 6 AVB and RBBB or LBBB), and 131 had no evidence of CAs at hospital admission. Thus, the analysis included 48 patients with pre-TAVR CAs and 131 patients without pre-TAVR CAs. The two groups were assessed for new onset CAs requiring PPI (Table 1).
The study protocol was approved by our local institutional review board (#000127/2017). The present study complies with the Declaration of Helsinki.