Abstract
We report a three month old infant who developed a persistent junctional
reciprocating tachycardia induced cardiomyopathy that was successfully
treated with radiofrequency ablation. To our knowledge this is the
youngest reported patient with a successful epicardial lesion placed in
a diverticulum off of the coronary sinus. We use this case to highlight
how low power lesions in the coronary sinus in the youngest of patients
can achieve results safely. Delineation of coronary anatomy is crucial
prior to lesion deliverance.