Radiofrequency catheter ablation of Mahaim tachycardia by targeting Mahaim potentials at the tricuspid annulus.

21 symptomatic patients with antidromic tachycardia with anterograde conduction over a Mahaim pathway (left bundle branch block configuration), median age 33, 15 female, from a consecutive series of 579 patients referred to three tertiary centers for catheter ablation of accessory pathways.

Radiofrequency catheter ablation targeting discrete Mahaim potentials recorded on the tricuspid annulus

Abolition of Mahaim conduction and symptom-free survival