Long-term electrical performance of leadless pacemakers in dialysis patients: a single-center cohort study

Description

F Nascimento Ferreira and co-authors follow the electrical performance of leadless pacemakers in dialysis patients over the first year, in a 2026 single-center cohort study. Dialysis patients are prime candidates for leadless devices because leads threaten their scarce veins and invite infection, yet durability data in this group are rare. The retrospective series covered twenty-seven consecutive recipients implanted in 2025, most receiving a Micra device seated mid-septum.

Mixed effects modeling found sensing strength and capture threshold essentially flat across the follow-up, which stretched to a median of about 289 days. Impedance drifted down gently, near four ohms per month, a change the authors describe as expected settling rather than deterioration. Starting values at implant sat comfortably in range. The authors call the first year reassuring for this high risk population while asking for larger series with longer horizons before declaring the devices fully proven here.

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Source: https://europepmc.org/articles/PMC13301114