Suitability of cardiac resynchronisation therapy in patients with Fontan circulation and congenitally corrected transposition of the great arteries

Only a small proportion of patients with single ventricles or ccTGA meet the criteria for CRT. In many of these patients there are significant anatomical barriers to CRT which limit its use in this population. The decision to implant CRT in complex ACHD requires discussion in a combined ACHD electrophysiology surgical multidisciplinary meeting and close collaboration with patients.