[Axillo-iliac bypass grafting for reoperation of graft stenosis after aortic arch reconstruction of type B interruption of the aortic arch: two cases report].

Right axillo-iliac bypass grafting was performed in two females (10 and 14 years old) who had stenosis or obstruction of grafts after reconstruction of the aortic arch in type B interruption. The initial bypass operations were carried out at the age of 5 months and 5 years, with the use of a 5-mm EPTFE graft and a 10-mm Dacron graft. Nine years later, the EPTFE graft was completely obstructed, and the Dacron bypass has stenosis, kink and calcification. To minimize surgical invasion, axillo-iliac extra-anatomical bypass was employed in both patients. 8-mm or 10-mm Hemashield grafts were implanted between the right axillar artery and the right common iliac artery through the intrapleural-preperitoneal route, and favourable results were obtained in both patients. The axillo-iliac bypass is considered to be a beneficial conservative method of reoperation for stenosis after graft reconstruction of the aortic arch in the younger age patients.