Reoperations after dacron patch aortoplasty with heparinized femoro-femoral bypass

Abstract

Dacron patch aortoplasty used to be a standard therapy in some surgical units. Occurrence of aneurysm formation after this procedure is well known. The incidence of aneurysms is reported to be 0-35% with a high risk of lethal rupture. We report three cases of aneurysm repair of the descending thoracic aorta after dacron patch aortoplasty using femoro-femoral extracorporeal system. Heparin-coated system was used primarily to prevent ischemic spinal cord injury through hypotension of the distal aorta and secondarily to reduce the risk of intraoperative hemorrhage.

Multidirectional flow analysis by cardiovascular magnetic resonance in aneurysm development following repair of aortic coarctation

“…Aneurysms may develop at the site of the aortic repair which is most likely associated with the operative technique. In this context, the largely discrepant compliance of the materials used for the patch plastic and the associated gradients along the vessel wall as well as local dehiscence within the suture have been discussed [ 6 - 9 ]. The associated complication rate may be seen as the driving force as to why the Dacron patch plastic (Vosschulte repair) has been more and more replaced by the subclavian patch angioplasty (Waldhausen repair) and a direct end-to-end anastomosis after surgical excision of the stenosis.…”