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Related Experiment Videos

Pacemaker endless loop tachycardia: termination by simple techniques other than magnet application.

S S Barold1, M D Falkoff, L S Ong

  • 1Department of Medicine, Genesee, Rochester, New York 14607.

The American Journal of Medicine
|December 1, 1988
PubMed
Summary
This summary is machine-generated.

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Chest wall stimulation (CWS), myopotential oversensing, and chest thumping offer effective alternatives for terminating pacemaker endless loop tachycardia (ELT) when magnet use is not feasible. These simple methods provide accessible solutions for physicians managing pacemaker-dependent arrhythmias.

Area of Science:

  • Electrophysiology
  • Cardiovascular Medicine
  • Biomedical Engineering

Background:

  • Pacemaker endless loop tachycardia (ELT) is a common arrhythmia.
  • Magnet application is the standard method for terminating ELT by converting pacemakers to asynchronous mode.

Purpose of the Study:

  • To investigate alternative, simple methods for terminating ELT.
  • To evaluate chest wall stimulation (CWS), myopotential oversensing, and chest thumping as ELT termination strategies.

Main Methods:

  • A modified CWS technique using an external pulse generator was tested in 74 patients with DDD pacemakers.
  • CWS was applied during induced ELT in 20 patients.
  • Myopotential oversensing and chest thumping were attempted during ELT in subsets of patients.

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Main Results:

  • Modified CWS successfully terminated ELT in all tested patients.
  • Myopotential oversensing terminated ELT in 60% of patients.
  • Chest thumping terminated ELT in 67% of patients.

Conclusions:

  • CWS, myopotential oversensing, and chest thumping are effective alternatives to magnet application for ELT termination.
  • These techniques are simple and can be readily applied by physicians, even those less familiar with advanced pacemaker programming.