[Hemolysis, a rare complication after percutaneous closure of an atrial septal defect].

Haemolysis after closure of an atrial septal defect with an Amplatzer device is a rare complication. The suggested mechanism is the association of a residual shunt with flow of tricuspid regurgitation, impinging on the inferior edge of the prosthesis, factors which should be taken into consideration during the implantation of this type of device.