Brugada syndrome presenting as incessant polymorphic ventricular tachycardia: a rare cause for a common outcome after cardiac arrest in a middle-aged Asian man

Brugada syndrome (BrS) is a familial disorder and an important though rare cause of sudden cardiac death (SCD). SCD occurs due to ventricular fibrillation (VF), though presentation with incessant polymorphic ventricular tachycardia has also been rarely reported in the literature. We report a case of BrS presenting with incessant polymorphic ventricular tachycardia that ultimately led to prolonged cerebral ischaemia and hypoxic ischaemic encephalopathy sequelae. A 34-year-old man, with no previous comorbidities, collapsed suddenly while attending to his morning routine work. He had a history suggestive of presyncopal episodes in the recent past. There was no family history of SCD. He was taken to a nearby hospital within 10–15 min of collapse, where cardiopulmonary resuscitation (CPR) was initiated. ECG monitor showed polymorphic ventricular tachycardia, so direct current (DC) shock and intravenous magnesium were given. After 20 min of CPR and five cycles of DC shock, the patient reverted to sinus rhythm. Simultaneously, he was intubated and put on ventilatory support. Intravenous amiodarone was …