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Related Experiment Videos

Overdrive pacing for atrial flutter

R W Peters1, D N Weiss, N H Carliner

  • 1Department of Medicine, Baltimore Department of Veterans Affairs Medical Center, Maryland 21201.

The American Journal of Cardiology
|November 15, 1994
PubMed
Summary
This summary is machine-generated.

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Overdrive pacing moderately restores normal sinus rhythm in atrial flutter patients, with 60% success. Pacing-induced atrial fibrillation often converts spontaneously, and no predictors of success were found.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Atrial flutter is a common supraventricular tachycardia.
  • Pace termination is a therapeutic option for restoring normal sinus rhythm.

Purpose of the Study:

  • To determine the incidence and predictors of conversion to normal sinus rhythm using overdrive pacing.
  • To evaluate the effectiveness of pacing protocols in terminating atrial flutter.

Main Methods:

  • 124 pace termination procedures were performed in 101 consecutive inpatients with atrial flutter.
  • A standard pacing protocol was utilized.
  • Clinical and laboratory parameters were assessed for predictive value.

Main Results:

  • Normal sinus rhythm was achieved in 60% of procedures (75/124).

Related Experiment Videos

  • Pacing-induced atrial fibrillation occurred in 39 procedures, with spontaneous conversion to sinus rhythm in over 20%.
  • No clinical or laboratory parameters predicted successful pacing; antiarrhythmic drugs did not enhance conversion rates.

    • Conclusions:

    • Overdrive pacing is moderately effective for terminating atrial flutter.
    • Pacing-induced atrial fibrillation can be transient and self-converting.
    • Predictors of successful pacing are lacking, and repeat procedures may be successful after initial failure.