Tracking preference as unusual trigger of pacemaker-mediated tachycardia in a resynchronization device

J Electrocardiol. 2016 Jul-Aug;49(4):509-11. doi: 10.1016/j.jelectrocard.2016.02.023. Epub 2016 Mar 11.

Abstract

A 59-year-old woman with a history of congestive heart failure, who previously received a biventricular cardioverter-defibrillator was admitted with dyspnea and peripheral edema. She was noted on telemetry to have multiple self-terminated episodes of rapid ventricular pacing, consistent with pacemaker-mediated tachycardia. All episodes started after three consecutive ventricular extrasystoles. "Tracking preference" algorithm, designed to maintain atrial-tracked biventricular pacing in CRT devices, resulted turned on. It affected minimum PVARP and resulted the trigger for pacemaker mediated tachycardia.

Keywords: Device algorithm; PVARP; Pacemaker-mediated tachycardia; Resynchronization device; Tracking preference.

Publication types

  • Case Reports

MeSH terms

  • Defibrillators, Implantable / adverse effects*
  • Equipment Failure*
  • Female
  • Heart Failure / complications*
  • Heart Failure / prevention & control*
  • Humans
  • Middle Aged
  • Tachycardia, Ventricular / diagnosis*
  • Tachycardia, Ventricular / etiology*
  • Tachycardia, Ventricular / prevention & control
  • Therapy, Computer-Assisted / instrumentation*
  • Therapy, Computer-Assisted / methods
  • Treatment Failure