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Related Experiment Videos

Long-term performance of single-pass physiological pacing.

A K Kar1, D Roy, M Mondal

  • 1Department of Cardiology, IPGMER, Kolkata, West Bengal.

Indian Heart Journal
|January 5, 2002
PubMed
Summary

Single-pass pacing offers advantages over dual-lead systems. DDDC pacing is recommended for patients needing VDD pacing with occasional atrial pacing due to stable capture and fewer complications.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Devices

Background:

  • Single-pass physiological pacing presents benefits over dual-lead pacing.
  • The overlapping biphasic impulse stimulation technique was used for single-pass pacing.

Purpose of the Study:

  • To evaluate the long-term performance of single-pass pacing using the overlapping biphasic impulse stimulation technique.

Main Methods:

  • 30 patients with single-pass VDD pacing and 8 with single-pass DDDC pacing were monitored for 1 year.
  • Evaluations included basal and magnet electrocardiograms and real-time telemetry.

Main Results:

  • All patients demonstrated satisfactory atrial sensing and pacing capture thresholds.
  • DDDC pacing showed stable capture in 88% supine, 75% upright, and 62% in both positions.

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  • Diaphragmatic contraction occurred in 25% of DDDC pacing cases, but not in VDD pacing.

    • Conclusions:

    • Single-pass pacing is safe, easy, and cost-effective compared to dual-lead systems.
    • DDDC pacing is advisable for patients requiring VDD pacing with infrequent atrial pacing.
    • DDDC pacing exhibited limitations in stable atrial pacing capture and a notable rate of diaphragmatic contraction.