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

11 , 13 Although these findings were highly significant, these studies were limited by the retrospective nature of the analysis.

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In the matched cohort, the reduction in the risk of overall complications did not reach statistical significance most likely because propensity score matching led to a reduction in sample size of more than 70% and because the number of events observed during follow-up was low.

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