Adenosine Sensitive VT

By Steven Lome

Adenosine sensitive ventricular tachycardia occurs in structurally normal hearts and arises from the right ventricular outflow tract (pulmonary infundibulum). This gives it a left bundle branch block morphology on the 12-lead ECG.


Adenosine can terminate this rhythm as the name implies, however ablation is the treatment of choice and success rates are high. Beta-blocker therapy is moderately effective to treat this rhythm. Unlike other forms of ventricular tachycardia, adenosine sensitive ventricular tachycardia is usually hemodynamically stable and rarely results in sudden cardiac death.