Closure of residual shunts after Fontan operation with Amplatzer occluder

The fenestrated Fontan operation is commonly performed at several centers to decrease postoperative morbidity. Ultimately, the fenestrations are closed to avoid desaturation and embolism. Closure is safely accomplished in the operating room or in the catheterization laboratory with a device. We report our experience with the Amplatzer septal occluder that was successfully used to close residual shunts and fenestrations in two patients.