Arrhythmia incidence after the intracardiac lateral tunnel Fontan completion versus the extracardiac conduit

Objectives: Early (within 30 days) and late arrhythmias (after 6 months) are relatively common following completion of the Fontan operation in its original form, which contributes significantly to late morbidity and mortality. Aim of the study was to compare a consecutive series of Fontan patients who had undergone Fontan completion either using an intracardiac lateral tunnel or an extracardiac conduit, for early and late arrhythmia incidence.