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Comparative assessment of safety with leadless pacemakers compared to transvenous pacemakers: a systemic review and meta-analysis

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SPRINGER
DOI: 10.1007/s10840-023-01550-8

Keywords

Leadless pacemakers; Transvenous pacemaker; Safety; Meta-analysis

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This meta-analysis found that leadless pacemakers were significantly safer than transvenous pacemakers in terms of re-intervention, device dislodgment, pneumothorax, and overall complications. However, there were higher rates of pericardial effusion in the leadless pacemaker group. Due to the limited number of patients included in the studies and the observational nature of all studies, randomized trials are needed to validate these findings.
BackgroundLeadless pacemakers (LP) and transvenous pacemakers (TVP) are two stable pacing platforms currently available in clinical practice. Observational data show mixed results with regards to their comparative safety. This meta-analysis was aimed to evaluate the comparative safety of LP over TVP.MethodsThe study protocol was registered in PROSPERO registry (CRD42022325376). Six databases were searched for published literature from inception to April 12, 2022. RevMan 5.4.1 was used for statistical analysis. Odds ratio (OR) and mean difference were used to estimate the outcome with a 95% confidence interval (CI).ResultsA total of 879 studies were imported from the databases. Among these, 41 papers were screened for full text and 17 meet the inclusion criteria. Among them, pooled results showed 42% lower odds of occurrence of complications in the LP group (OR 0.58, CI 0.42-0.80) compared to TVP group. Notably, 70% lower odds of device dislodgment (OR 0.30, CI 0.21-0.43), 46% lower odds of re-intervention (OR 0.54, CI 0.45-0.64), 87% lower odds of pneumothorax (OR 0.13, CI 0.03-0.57), albeit, 2.65 times higher odds of pericardial effusion (OR 2.65, CI 1.49-4.70) were observed in the LP group.ConclusionsThis meta-analysis showed LP to be a significantly safer modality compared to TVP, in terms of re-intervention, device dislodgment, pneumothoraxes, and overall complications. However, there were higher rates of pericardial effusion in the LP group. There was a diverse number of patients included, and all studies were observational. Randomized trials are needed to validate our findings.

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