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  • Title: Transcatheter closure of atrial septal defects by the "buttoned" device: complications and need for surgical revision.
    Author: Gildein HP, Däbritz S, Geibel A, Sarai K, Vazquez-Jimenez J, Hügel W, Mocellin R.
    Journal: Pediatr Cardiol; 1997; 18(5):328-31. PubMed ID: 9270098.
    Abstract:
    Immediate and medium-term experience with transcatheter closure of a secundum atrial septal defect by the "buttoned" device in seven patients is reported. Complications occurred in two patients during the procedure. In one patient with complications, the occluder was partly released in the right atrium. All efforts to correct its position were unsuccessful and caused considerable deformation of the device, which had to be removed surgically. In the other patient with complications, disconnection of the occluder and counteroccluder occurred immediately after removal of the loading wire. Both parts were retrieved by catheter. Five patients had uneventful closure of the atrial septal defect. On follow-up, however, displacement of the device towards the mitral valve was observed in two patients, which caused mitral regurgitation. Surgical removal of the device and repair of the mitral valve was necessary in both patients. Two years after the procedure, the atrial septal defect was closed completely in two of the remaining three patients and a small residual defect persisted in one patient.
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