Type II Bidirectional Ventricular Tachycardia as a Mechanism of Termination of Sustained Ventricular Tachycardia

Bidirectional ventricular tachycardia in ischemic cardiomyopathy during ablation

“…A similar theory of multiple exit sites as the cause of BVT had been previously offered, but in the context of sarcoidosis and angina. 4 , 7 In the presence of scar-mediated reentry VT, it is common to find VT of multiple morphologies because of multiple exit sites. Ablation within areas of scar with an abnormal local EGM during pace mapping with multiple exit sites had been associated with greater success.…”

Bidirectional Ventricular Tachycardia?

“…Triggered activity and reentry mechanism are postulated as possible mechanisms. The etiology is most commonly digitalis toxicity and rarely herbal aconitine poisoning, hypokalemic periodic paralysis, cathecolaminergic VT, myocarditis, and Anderson‐Tawil syndrome …”

Bidirectional Ventricular Tachycardia: A Hallmark of Catecholaminergic Polymorphic Ventricular Tachycardia

“…According to the classification originally proposed by Scherf and Kisch, the BVT presented here is a Type II BVT, defined by a regular and fixed alternation of short and long intervals. [1,2]…”