“…However, these new guidelines for pediatric implantable cardioverter-defibrillator (ICD) implantation, particularly for secondary prevention in channelopathy patients (specifically long QT syndrome and catecholaminergic polymorphic ventricular tachycardia), are more nuanced and these new guidelines allow for alternate therapies, such as aggressive medical therapy and sympathectomy, to be considered in select patients. 1,5 Another important difference is regarding primary prevention ICD implantation in dilated nonischemic cardiomyopathy patients with an ejection fraction 35%-in pediatric patients, this is now a IIB indication 1,5 in contrast to class I indication in current adult guidelines. 6,7…”