[Postoperative aneurysm of the right ventricle]

After reconstruction of the right ventricular outflow tract in the tetralogy of Fallot by means of a pericardial patch or patch from synthetic material in rare instances an aneurysm of the right ventricle may develop. The authors diagnosed seven postoperative aneurysms of the right ventricle in a group of 220 children operated on account of the tetralogy of Fallot (3.18%), incl. four where an urgent surgical operation was necessary. The aneurysm developed once after suture of the transmural pericardial patch and six times after an enlarging plastic operation of the outflow tract of the right ventricle by means of a synthetic patch. Of the four operated patients three times a pseudoaneurysm was involved and once a true aneurysm.