[Late pseudoaneurysm formation after patch angioplasty of coarctation of the aorta; report of a case].

We report a case of a 13-year-old boy presenting with pseudoaneurysm associated with a knitted Dacron patch used to repair a coarctation of the aorta. At the age of 3 months, he had undergone patch angioplasty for a coarctation of the aorta, which develops following patent ductus arteriosus division at 2 months of age. He was treated by distal aortic arch replacement using 16 mm woven Dacron tube graft in an end-to-end fashion with open proximal anastomosis under deep hypothermic circulatory arrest. The aneurysm was in the aortic wall opposite the patch graft. There was no evidence of infection or dilatation of the patch graft. This case illustrates that repair of aortic coarctations with Dacron patches cannot be recommended.