Ventricular capture by anodal pacemaker stimulation

Europace. 2006 May;8(5):385-7. doi: 10.1093/europace/eul013. Epub 2006 Mar 23.

Abstract

This report describes the case of an 86-year-old male with syncopal paroxysmal 2:1 atrioventricular block and a single chamber VVI pacemaker programmed to bipolar sensing and unipolar pacing. After recurrence of syncope, a complete loss of ventricular capture with regular ventricular sensing was observed on ECG; fluoroscopic examination suggested perforation of the right ventricle by the helix of the implanted screw-in lead. Reprogramming the pacemaker to bipolar pacing/sensing resulted in regular ventricular capture and sensing, suggesting effective anodal stimulation from the ring electrode permitting complete non-invasive palliation.

Publication types

  • Case Reports

MeSH terms

  • Aged, 80 and over
  • Atrioventricular Node / physiopathology*
  • Electrocardiography
  • Equipment Failure
  • Equipment Safety
  • Heart Block / physiopathology*
  • Heart Block / therapy*
  • Heart Ventricles / injuries*
  • Heart Ventricles / physiopathology
  • Humans
  • Male
  • Pacemaker, Artificial / adverse effects*