Non-invasive isthmus identification of complex arrhythmias in congenital heart disease

J Arrhythm. 2021 Aug 30;37(6):1562-1566. doi: 10.1002/joa3.12620. eCollection 2021 Dec.

Abstract

Sustained re-entrant tachyarrhythmias treatment has become pivotal in the grown-up congenital heart patients clinical management. Cardiac LGE-MRI tissue characterization integrated with high definition electroanatomic map could allow fast recognition and effective treatment of substrate of tachyarrhythmias. Cardiac LGE-MRI areas were suggestive of post-surgical changes both in atrium and ventricle. High-density electro-anatomical map localized areas of slow conduction identifying conducting isthmuses of re-entrant arrhythmias.