Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a severe arrhythmia associated with sudden death in the young. It is caused by defective calcium handling in ventricular myocytes. The association of supraventricular tachycardia (SVT) with CPVT is described in the literature. occurring in the lead-up to ventricular tachycardia during exercise testing. https://fitnessgravesyardes.shop/product-category/t-shirt/