Ethanol Alcohol Ablation of the Marshall Vein as the First Step for Left Atrial Tachycardia Ablation

Electroanatomic mapping guides complex atrial tachycardia ablations, however challenges may emerge post-pulmonary vein isolatıon. In a unique case, vein of Marshall (VOM) ethanol ablation, a conventional secondary intervention, promptly terminated an epicardial atrial tachycardia without further endocardial radiofrequency application, suggesting VOM’s potential as a primary strategy.