Focal Atrial Tachycardia

Over the past decade most of the electrophysiologic mechanisms in patients with focal atrial tachycardias (ATs) have been well studied Recently advanced mapping systems have revealed the precise propagation and the relationship between non radial propagation pattern and substrate property of focal AT Non radial activation pattern of focal AT may mimic macrorentrant AT and may lead to inappropriate ablation strategy In this review we will focus on the current state of mapping and ablation techniques safety and efficacy associated with the catheter ablation for focal AT.