Radiofrequency catheter ablation of ventricular tachycardia guided by nonsurgical epicardial mapping in chronic Chagasic heart disease.
We report a case of a 63-year-old women with Chagas' disease and recurrent, syncopal VT treated by RF catheter ablation in whom endocardial application of RF energy was guided by nonsurgical epicardial mapping. The procedure was undertaken in the electrophysiology laboratory under deep anesthesia. VT was interrupted after 2.4 seconds of application and rendered noninducible afterwards. Two weeks after the procedure, a distinct morphology VT was induced by programmed ventricular stimulation, and the patient was started on amiodarone, remaining asymptomatic 12 months after the procedure.
Sosa
E
E
Heart Institute-University of São Paulo Medical School, Brazil.
Scanavacca
M
M
D'Avila
A
A
Bellotti
G
G
Pilleggi
F
F
D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation / Q000379:methods*; D002598:Chagas Cardiomyopathy / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008875:Middle Aged; D015641:Radiography, Interventional; D017180:Tachycardia, Ventricular / Q000150:complications / Q000503:physiopathology / Q000601:surgery*