Radiofrequency ablation of incessant ventricular tachycardia to prevent multiple defibrillator shocks.
In a patient who received frequent shocks from an implantable defibrillator, a slow ventricular tachycardia originating in a large left ventricular aneurysm was ablated with radiofrequency current. Pacemapping perfectly matched the spontaneous, incessant arrhythmia. Local entrainment was present, along with a mid-diastolic potential of 65 microV. Application of 30 W terminated tachycardia within 12 s. He had no more recurrences during follow-up.
Jordaens
L
L
Department of Cardiology, University Hospital Ghent, Belgium.
Vertongen
P
P
Provenier
F
F
D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology / Q000628:therapy*; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D017147:Defibrillators, Implantable; D004562:Electrocardiography; D006322:Heart Aneurysm / Q000150:complications / Q000503:physiopathology; D006352:Heart Ventricles / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology; D017180:Tachycardia, Ventricular / Q000503:physiopathology / Q000601:surgery*