Mehboob Ali, Javaid Arif Khan, Tariq Masood, Fahad Shamsi, Mushtaq Hussain Dero, Sulman Khan.
Bidirectional ventricular tachycardia of unknown etiology.
J Coll Physicians Surg Pak Jan ;23(5):347-9.

A 45 years old male presented to the emergency department with palpitations, headache and apprehension. His electrocardiogram revealed bidirectional ventricular tachycardia. He remained vitally stable and responded to intravenous beta-blocker. Initially digitalis toxicity was suspected but history was negative for digitalis intake. The cause remained unidentified in patient despite detailed investigations. During a short follow-up (of 6 months) he remained asymptomatic and no cause was further identified during this period. Some other unseen causes of bidirectional ventricular tachycardia need to be explored.

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