Two case reports on incessant left ventricular tachycardia: curative therapy with radiofrequency ablation.
BACKGROUND
Incessant ventricular tachycardia is a rare arrhythmia which can be life threatening. Treatment with anti-arrhythmic agents may occasionally fail.


METHODS
We report 2 cases of incessant ventricular tachycardia. The first case was a young man with idiopathic left ventricular tachycardia who was in incessant ventricular tachycardia despite treatment with multiple anti-arrhythmic drugs and developed dilated cardiomyopathy. The second case was an asymptomatic girl with the incidental finding of an incessant ventricular tachycardia which originated from the left ventricular outflow tract.


RESULTS
Both patients underwent electrophysiologic study and radiofrequency ablation with complete termination of the tachycardia.


CONCLUSIONS
Radiofrequency catheter ablation in experienced centres should be the first-line therapy for incessant ventricular tachycardia.
Tan
C S
CS
Department of Cardiology, National Heart Centre, Mistri Wing, 17 Third Hospital Avenue, Singapore 168752.
Hsu
L F
LF
Kam
R M L
RM
Teo
W S
WS
D000293:Adolescent; D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000008:administration & dosage; D002311:Cardiomyopathy, Dilated / Q000150:complications / Q000175:diagnosis; D017115:Catheter Ablation / Q000379:methods*; D004351:Drug Resistance; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000150:complications / Q000175:diagnosis; D008297:Male; D018570:Risk Assessment; D017180:Tachycardia, Ventricular / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery*; D016896:Treatment Outcome
D000889:Anti-Arrhythmia Agents