4.6 Article

Rate and nature of complications with leadless transcatheter pacemakers compared with transvenous pacemakers: results from an Italian multicentre large population analysis

Journal

EUROPACE
Volume 25, Issue 1, Pages 112-120

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/europace/euac112

Keywords

Leadless pacemaker; Transvenous pacemaker; Complications; Lead-related complications; Pocket-related complications; Device infection

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This study compared the rate and nature of device-related complications in patients undergoing leadless intracardiac-permanent pacemaker (L-PM) or conventional transvenous-permanent pacemaker (T-PM) implantation. The results showed that the risk of device-related complications was generally lower in the L-PM group compared to the T-PM group, with significantly lower risk of late complications in the L-PM group.
Aims The safety and efficacy of leadless intracardiac-permanent pacemaker (L-PM) have been demonstrated in multiple clinical trials, but data on comparisons with conventional transvenous-permanent pacemaker (T-PM) collected in a consecutive, prospective fashion are limited. The aim of this analysis was to compare the rate and the nature of device-related complications between patients undergoing L-PM vs. T-PM implantation. Methods and results Prospective, multicentre, observational project enrolling consecutive patients who underwent L-PM or T-PM implantation. The rate and nature of device-related complications were analysed and compared between the two groups. Individual 1:1 propensity matching of baseline characteristics was performed. A total of 2669 (n = 665 L-PM) patients were included and followed for a median of 39 months, L-PM patients were on average older and had more co-morbidities. The risk of device-related complications at 12 months was significantly lower in the L-PM group (0.5% vs. 1.9%, P = 0.009). Propensity matching yielded 442 matched pairs. In the matched cohort, L-PM patients trended toward having a lower risk of overall device-related complications (P = 0.129), had a similar risk of early complications (<= 30 days) (P = 1.000), and had a significantly lower risk of late complications (>30 days) (P = 0.031). All complications observed in L-PM group were early. Most (75.0%) of complications observed in T-PM group were lead- or pocket-related. Conclusion In this analysis, the risk of device-related complications associated with L-PM implantation tended to be lower than that of T-PM. Specifically, the risk of early complications was similar in two types of PMs, while the risk of late complications was significantly lower for L-PM than T-PM.

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