Radiofrequency catheter ablation of a macroreentrant ventricular tachycardia late after surgical repair of tetralogy of Fallot using the electroanatomic mapping (CARTO).
This case report describes a patient with a sustained monomorphic VT after surgical repair of a tetralogy of Fallot (TOF). In combination with the three-dimensional electroanatomic mapping system, CARTO, and conventional mapping techniques the VT was identified as a macro-reentrant tachycardia circling around the border between pulmonary graft and right ventricular outflow tract (RVOT). A y-shaped ablation line crossing this zone was created. The VT terminated during RF application and was not inducible again. This case underlines the use of a combined conventional and three-dimensional electroanatomic mapping technique can be helpful for catheter ablation of ventricular arrhythmias in TOF patients.
Rostock
Thomas
T
Department of Cardiology, University Hospital Eppendorf, Hamburg, Germany. rostock@uke.uni-hamburg.de
Willems
Stephan
S
Ventura
Rodolfo
R
Weiss
Christian
C
Risius
Tim
T
Meinertz
Thomas
T
D000328:Adult; D000638:Amiodarone / Q000627:therapeutic use; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D002921:Cicatrix / Q000503:physiopathology / Q000601:surgery; D004562:Electrocardiography / Q000187:drug effects; D005500:Follow-Up Studies; D006352:Heart Ventricles / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D012008:Recurrence; D012984:Software; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D013771:Tetralogy of Fallot / Q000601:surgery*
D000889:Anti-Arrhythmia Agents; D000638:Amiodarone