title: Bidirectional ventricular tachycardia of unusual etiology.
abstract: Bidirectional ventricular tachycardia (BDVT) is a rare form of ventricular arrhythmia, characterized by changing QRS axis of 180 degrees. Digitalis toxicity is considered as commonest cause of BDVT; other causes include aconite toxicity, myocarditis, myocardial infarction, metastatic cardiac tumour and cardiac channelopathies. We describe a case of BDVT in a patient with Anderson-Tawil syndrome.
authors.affiliation: Department of Cardiology, Vardhaman Mahavir Medical College and Safdarjang Hospital, Delhi, India.
authors.forename: Praloy
authors.initials: P
authors.lastname: Chakraborty
authors.affiliation: Department of Neurology, Vardhaman Mahavir Medical College and Safdarjang Hospital, Delhi, India.
authors.forename: Bhavna
authors.initials: B
authors.lastname: Kaul
authors.affiliation: Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
authors.forename: Kausik
authors.initials: K
authors.lastname: Mandal
authors.affiliation: Department of Cardiology, Vardhaman Mahavir Medical College and Safdarjang Hospital, Delhi, India.
authors.forename: H S
authors.initials: HS
authors.lastname: Isser
authors.affiliation: Department of Cardiology, Vardhaman Mahavir Medical College and Safdarjang Hospital, Delhi, India.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Bansal
authors.affiliation: Department of Cardiology, Indira Gandhi Government General Hospital and Postgraduate Institute, Pondicherry, India.
authors.forename: Anandaraja
authors.initials: A
authors.lastname: Subramanian