Invasive elektrophysiology Ablation of incisional right atrial tachycardia with critical region between surgical scar and crista terminalis in a patient with corrected transposition of great arteries after correction of Fallot-like pentalogy, Ebstein-like tricuspid valve anomaly and WPW syndrome

Abstract

In a 14 year old boy with corrected transposition of great arteries after correction of Fallot-like pentalogy, Ebstein-like tricuspid valve anomaly and WPW syndrome that was treated surgically, atrial tachycardia (AT) 260-280ms was diagnosed and ablated. Due to earlier therapy it was impossible to insert catheters through femoral veins, and a subclavian and carotid veins access was used. The arrhythmia was a periincisional right AT. The isthmus was diagnosed with the use of entrainment pacing between a scar near VCI and the surgical incision along crista terminalis. Application in that region terminated AT and it was not inducible after the procedure.