No abstract

Post-CAF treatment sequelae include thrombosis and MI, revascularization, persistent coronary dilatation, remodeling, and decrease in conduit coronary artery size towards normal. The large size distal type of CAF may be at highest risk for coronary thrombosis post closure. The optimal treatment approach to various morphologies of CAF at various ages remains to be determined.

Overall arrhythmia burden is similar between the 2 groups, but the extracardiac Fontan group had a higher incidence of early bradyarrhythmias. There was no difference in the incidence of late tachyarrhythmias over time between the 2 operations. Therefore, the type of Fontan performed should be based on factors other than an anticipated reduction in arrhythmia burden from the extracardiac conduit.