Implantable Cardioverter Defibrillator (ICD) devices have been developed for prompt recognization and termination of life-threatening ventricular arrhythmias. We experienced a case of 34-years old male patient with ICD diagnosed as Brugada Syndrome and undergone appendectomy under general anesthesia. Before anesthetic induction, the device was turned off to avoid electromagnetic interference (EMI) from electrocautery during operation and turned on again after surgery. There was no significant cardiac events during perioperative period and postoperative care for 7 days of admission.