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Lead-related complications after DDD pacemaker implantation
Maciej Dębski1, Mateusz Ulman, Andrzej Ząbek
1Department of Electrocardiology, John Paul II Hospital, Krakow, Poland Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland. maciekdebski@gmail.com.
Kardiologia Polska
|April 11, 2018
Summary
Pacemaker leads, particularly those with polyurethane 80A insulation or unipolar construction, show higher failure rates. Subclavian vein access also predicts poorer long-term pacing lead performance.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Device Technology
Background:
- Pacing leads are critical components of pacemaker systems.
- Despite manufacturing advancements, pacing leads remain a vulnerability in pacemaker technology.
- Understanding long-term lead performance is essential for patient care.
Purpose of the Study:
- To evaluate the long-term performance of pacemaker leads in a large, real-world patient cohort.
- To identify factors predicting lead dislodgement and failure after dual-chamber (DDD) pacemaker implantation.
Main Methods:
- Retrospective analysis of 3771 patients undergoing DDD pacemaker implantation (1984-2014).
- Evaluation of 7887 atrial and ventricular leads over 24,431 patient-years of follow-up.
- Analysis of lead dislodgement, perforation, and failure rates and their predictors.
Main Results:
- Lead dislodgement occurred in 1.2% of leads, perforation in 0.1%, and lead failure in 4.2%.
- Atrial lead position predicted dislodgement.
- Age, polyurethane 80A insulation, subclavian vein access, unipolar construction, and manufacturer predicted lead failure.
Conclusions:
- Pacing leads with polyurethane 80A insulation, unipolar construction, and those implanted via subclavian vein puncture demonstrated inferior long-term performance.
- These findings highlight specific lead characteristics and implantation techniques associated with increased risk.
- Optimizing lead selection and implantation may improve pacemaker system reliability.
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