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Pacemaker longevity: the world's longest-lasting VVI pacemaker.

David Katz1, Toshio Akiyama

  • 1Department of Internal Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, USA. david.katz@uphs.upenn.edu

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|July 10, 2007
PubMed
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The CPI Microlith 605 VVI pacemaker demonstrated exceptional longevity, lasting over 19 years on average. One unit even functioned for over 26 years, significantly outperforming other VVI pacemaker models.

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • Cardiac pacemakers are increasingly prevalent in the US, with current batteries typically lasting up to 12 years.
  • Pacemaker generator replacement incurs significant healthcare costs and patient inconvenience.

Purpose of the Study:

  • To evaluate VVI-pacemaker longevity across different models at a single institution.
  • To identify and report on exceptionally long-lasting pacemaker models and individual devices.

Main Methods:

  • Retrospective review of 105 VVI-programmed pacemaker explantations over a 10-year period.
  • Calculation of average pacemaker longevity for all VVI devices, specific VVI models (Medtronic Thera, Kappa; Guidant/CPI Vigor, Discovery), and the CPI Microlith 605.

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Main Results:

  • The average longevity for all VVI pacemakers was 7.2 years.
  • Medtronic Thera (7.1 years) and Kappa (7.3 years) showed comparable longevity.
  • Guidant/CPI Vigor (4.2 years) and Discovery (5.7 years) had shorter average lifespans.
  • The CPI Microlith 605 exhibited an average longevity of 19.2 years, with one unit lasting over 26 years.

Conclusions:

  • The CPI Microlith 605 VVI pacemaker offers significantly longer longevity compared to other VVI models, averaging more than double the lifespan.
  • The findings highlight the potential for extended pacemaker functionality, with one device reaching 26.3 years of service.
  • Increased use of dual-chamber pacing systems may impact overall pacemaker longevity.