 On 03/22/2004, he returned to the operating room and underwent successful 20 mm extracardiac Fontan with placement of an 8-mm fenestration and main pulmonary artery ligation. 
On 03/22/2004 , he returned to the operating room and underwent successful 20 mm extracardiac Fontan with placement of an 8 - mm fenestration and main pulmonary artery ligation .