The Y-graft Fontan as described today suffers from the disadvantage of being hostage to restrictions imposed upon the design of the limbs of the Y by existent cardiac anatomy. We describe a patient with discontinuous pulmonary arteries following a prior Glenn shunt, who underwent Fontan completion using an intra-atrial Y-limb placement for recruitment of the discontinuous pulmonary artery. Intracardiac placement of the limb(s) of the Y-graft could potentially increase the applicability of this Fontan modification without being constrained by external cardiac anatomy.
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