Preservation of ventricular capture by anodal stimulation after dislodgment of an epicardial electrode

Pacing Clin Electrophysiol. 2006 Jan;29(1):99-101. doi: 10.1111/j.1540-8159.2006.00288.x.

Abstract

A 58-year-old man had a bipolar epicardial left ventricular (LV) implanted for cardiac resynchronization therapy after a failed transvenous approach. The system was programmed in an LV tip-right ventricular coil configuration, but during follow-up loss of LV capture with recurrence of symptoms occurred. Changing to an LV tip-LV ring configuration restored LV pacing through anodal capture. Loss of cathodal capture was caused by dislodgment of the cathodal electrode due to a broken fixation suture. Anodal capture was used to reinstall resynchronization therapy, which resulted in clinical improvement. There were no adverse effects from anodal stimulation in a follow-up period of 6 months.

Publication types

  • Case Reports

MeSH terms

  • Bundle-Branch Block / therapy*
  • Defibrillators, Implantable*
  • Electrocardiography
  • Electrodes, Implanted*
  • Equipment Failure
  • Heart Failure / therapy*
  • Heart Ventricles / physiopathology
  • Humans
  • Male
  • Middle Aged