Long QT Syndrome +++

https://emedicine.medscape.com/article/157826-overview?ecd=mkm_ret_250104_mscpmrk_cardio_ecg_etid7138536&uac=148436CN&impID=7138536 Electrocardiography https://emedicine.medscape.com/article/1894014-overview?ecd=mkm_ret_250104_mscpmrk_cardio_ecg_etid7138536&uac=148436CN&impID=7138536 Normal Electrocardiography (ECG) Intervals https://emedicine.medscape.com/article/2172196-overview?ecd=mkm_ret_250104_mscpmrk_cardio_ecg_etid7138536&uac=148436CN&impID=7138536