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[Pacemaker longevity. Replacement of the device].

J C Deharo1, P Djiane

  • 1Unité de rythmologie, département de cardiologie, hôpital Timone Adultes, 263, rue Saint-Pierre, 13385 Marseille cedex 05, France. jean-claude.deharo@ap-hm.fr

Annales De Cardiologie Et D'Angeiologie
|February 11, 2005
PubMed
Summary
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Pacemaker generator replacement is common due to battery depletion. Optimizing longevity involves managing output voltage, duration, and impedance, while considering higher complication risks with replacement procedures.

Area of Science:

  • Cardiology
  • Biomedical Engineering

Context:

  • Increasing life expectancy of pacemaker patients necessitates frequent generator replacements.
  • Normal battery depletion accounts for over 70% of pacemaker replacement indications.
  • Sophisticated and smaller pacemaker designs present challenges for longevity optimization.

Purpose:

  • To highlight key factors influencing pacemaker longevity.
  • To discuss the limitations of traditional battery depletion indicators like magnet rate.
  • To emphasize the increased complication rates associated with pacemaker replacement compared to initial implantation.

Summary:

  • Pacemaker longevity is primarily determined by programmed output voltage and pulse duration.
  • Battery voltage and internal impedance are accurate, easily obtainable parameters for assessing battery depletion.

Related Experiment Videos

  • Other factors include pacing impedance and percentage of time with pacing.

    • Impact:

    • Understanding these factors can help optimize pacemaker longevity and reduce replacement frequency.
    • Awareness of higher complication rates underscores the importance of careful pre-replacement assessment.
    • Systematic pre-replacement checks are crucial for patient safety and successful outcomes.