Preservation of ventricular capture by anodal stimulation after dislodgment of an epicardial electrode.
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.
Römers
Hans
H
Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands.
Bracke
Frank A
FA
Meijer
Albert
A
Van Gelder
Berry M
BM
D002037:Bundle-Branch Block / Q000628:therapy*; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D004567:Electrodes, Implanted; D004868:Equipment Failure; D006333:Heart Failure / Q000628:therapy*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged