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- W4313443617 abstract "Transvenous pacemaker (PM) implantation is a complication in patients undergoing transcatheter aortic valve implantation (TAVI). Recently, a second-generation of leadless PMs able of atrioventricular (AV) synchronous pacing have been introduced and could be an alternative when ventricular pacing is required after TAVI. Real-world data on Micra AV after TAVI are still lacking. Our aim was to determine the per- and post-procedural outcomes in patients with Micra AV leadless PM implantation after TAVI. A total of 20 consecutive patients underwent Micra AV leadless PM implantation after TAVI between November 2020 and June 2021. The main indication for ventricular pacing was high-degree atrioventricular block (55% of patients) and left bundle branch block associated with prolonged HV interval (45% of patients). At discharge, mean (SD) ventricular pacing threshold was 0.397 ± 0.11 V at 0.24 ms and ventricular impedance was 709.4 ± 139.1 Ω. At 1-month follow-up, 95% of patients were programmed in VDD pacing mode. Mean (SD) ventricular pacing threshold was 0.448 ± 0.094 V at 0.24 ms. In patients with ventricular pacing > 90% (n = 5), mean AM-VP was 72.5 ± 8.3%. Pacing threshold at 1-month was not significantly different compared to discharge (P = 0.1088). Mean (SD) impedance was 631.0 ± 111.9 Ω, which remained stable at discharge (P = 0.0813). No procedural complications occurred during implantation. At 1-month follow-up, two patients displayed atrial under-sensing. Micra AV leadless PM implantation after TAVI is associated with a low complication rate and good device performance at 1-month post-implantation." @default.
- W4313443617 created "2023-01-06" @default.
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- W4313443617 date "2023-01-01" @default.
- W4313443617 modified "2023-10-17" @default.
- W4313443617 title "Micra AV Leadless pacemaker implantation after transcatheter aortic valve implantation" @default.
- W4313443617 doi "https://doi.org/10.1016/j.acvdsp.2022.10.191" @default.
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