PO-05-049 OPTIMAL TIMING OF PERMANENT PACEMAKER IMPLANTATION FOLLOWING TRANSCATHETER AORTIC VALVE REPLACEMENT

Atrioventricular nodal block (AVB) is a common complication following transcatheter aortic valve replacement (TAVR). The timing of permanent pacemaker (PPM) implantation with respect to conduction disease and recovery not well established. purpose this study determine the optimal PPM for AVB TAVR. Patients were retrospectively reviewed AB by ECG progress note data in electronic medical record TAVR implantation, interrogation was long-term pacing requirements. Pacemaker dependence defined as absence underlying rhythm at < 40 bpm. Definite/probable need 2nd degree AVB, complete heart (CHB), or atrial fibrillation bradycardia burden > 40%. A total 458 consecutive patients who underwent identified. Of these, 99 had previously implanted excluded, leaving 359 patients. CHB noted 73 (20%). On day 0 post-TAVR, 67 (92%) 6 (8%), 21 (28%) subsequent no clear need. At 1 10 (14%) demonstrated AV did require PPM; 48 (66%) persistent CHB; 15 (20%) intermittent 63 placement. performed 7-30 days implantation. post-TAVR 1, 42 follow-up after >7d. 36 (86%) remained pacemaker-dependent, 14 later follow-up, 9 (64%) need, only 5 (36%) definite/probable (Fig 1). significant number will demonstrate recovery, on same may be justified. those day, relatively few could considered then. However, one high rate return conduction, longer observation appropriate before proceeding