Successful catheter ablation of postoperative atrial tachycardia with conduction disturbances: assessment by late-gadolinium enhancement magnetic resonance imaging and high-resolution electro-anatomical mapping

Atrial tachycardia (AT) in the right atrium often occurs following open-heart surgery. Catheter ablation for these AT is challenging and can lead to unintended conduction block. We performed late-gadolinium enhancement magnetic resonance imaging prior to catheter ablation and predicted wavefront propagation during SR as well as the slow conduction zone