Successful cryoablation of ventricular tachycardia arising from the proximal right bundle branch in a child.

摘要

Most ventricular tachycardias (VTs) that are encountered in clinical practice occur in patients who have structural heart disease. Idiopathic VT refers to those arrhythmias that occur in patients without structural heart disease, metabolic/electrolyte abnormalities, or an ion channelopathy. Idiopathic VT in patients with an anatomically normal heart is a distinct entity whose management and prognosis differs from that for VT that is associated with structural heart disease. Catheter ablation has a high success rate in the first group of patients and is often used by our institution to manage this disease. Here we report the first case of idiopathic VT arising from the right bundle branch (RBB) in a child who was treated using cryoablation.