Catheter ablation of supraventricular tachycardia in a child with situs ambiguus, single ventricle, interrupted IVC and Glenn shunt

Abstract

A 13 year old boy with drug refractory Supraventricular Tachycardia (SVT) was admitted for electrophysiological study and possible radiofrequency catheter ablation. He was a known case of complex congenital cyanotic heart disease: dextrocardia, common atrium, single ventricle, common atrioventricular (AV) valve with atrio ventricular septal defect and AV valve incompetence. He underwent Modified Blalock Taussig shunt in 1995 followed by Glenn Shunt in 1998. He had recurrent SVT despite amiodarone, digoxin and diltiazem.