Ablation of atrial tachycardia after Mustard and Senning surgeries for d-transposition of the great arteries

Various types of cardiac arrhythmias can be encountered in patients with previous Mustard or Senning palliation for dextro transposition of the great arteries. This review focuses on the most frequent presentations with supraventricular tachycardias which are amenable to catheter ablation using advanced technologies.In most of the cases, success can be achieved with ablation from the neo-pulmonary venous site, a region no longer directly accessible. Different techniques can be employed to reach the pulmonary side of the circulation, depending on the personal experience and the available equipment including remote magnetic navigation. Careful pre- and peri-procedural assessment of the underlying anatomy, possible baffle obstructions or residual leaks is essential.