Department of Anesthesiology Faculty of Medicine Prince of Songkla University Hat Yai Songkhla 90110 Thailand;
Department of Anesthesiology Faculty of Medicine Prince of Songkla University Hat Yai Songkhla 90110 Thailand;
Department of Anesthesiology Faculty of Medicine Prince of Songkla University Hat Yai Songkhla 90110 Thailand;
Cardiopulmonary bypass; Internal defibrillation; Ventricular fibrillation; Ventricular tachycardia;