Ablation of outflow tract ventricular tachycardia.

Ventricular tachycardia in patients with structurally normal hearts is most frequently due to adenosine-sensitive, triggered activity. The most common sites of origin are the right and left ventricular outflow tracts. Patients may present with symptoms such as palpitations, or less commonly cardiomyopathy. Treatment options include beta blockers, calcium channel blockers, sodium channel blockers, potassium channel blockers, and catheter ablation. Catheter ablation is highly effective and when performed by a skilled electrophysiologist, can be considered first-line treatment. Knowledge of outflow tract and surrounding anatomy is vital to optimizing results. In this review, we discuss outflow tract anatomy and electrocardiographic morphology, as well as techniques for optimizing ablation outcomes.