Sudden death in patients and relatives with the syndrome of right bundle branch block, ST segment elevation in the precordial leads V1to V3and sudden death

The syndrome with an electrocardiographic pattern of right bundle branch block, ST segment elevation in leads V(1)to V(3)and sudden death is genetically determined and caused by mutations in the cardiac sodium channel. The inheritance of the disease is autosomal dominant. Sudden death may, however, occur from a variety of causes in relatives and patients with this syndrome.