Pacemaker-mediated polymorphic ventricular tachycardia.
A patient with refractory bradycardia dependent polymorphic ventricular tachycardia (PMVT) underwent permanent pacemaker placement for suppression of her arrhythmia. Following implant, the patient had recurrent PMVT. Interrogation of the device revealed a factory programmed feature (+ PVARP on PVC) designed to prevent pacemaker-mediated tachycardia that led to cycle length variability and subsequent arrhythmia recurrence. This feature was deactivated and the patients' arrhythmia did not recur.
Goldman
D S
DS
Division of Cardiology, University of Florida, Jacksonville, USA.
Levine
P A
PA
D000368:Aged; D000465:Algorithms; D004562:Electrocardiography; D004867:Equipment Design; D005260:Female; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D012008:Recurrence; D017180:Tachycardia, Ventricular / Q000209:etiology* / Q000628:therapy*