The combination of iliac branch device with parallel stent graft to preserve bilateral internal iliac arteries in a patient with infrarenal abdominal aortic and bilateral common iliac artery aneurysm with short common iliac lengths: A case report.

Coexistent aneurysmal involvement of common iliac artery is frequently seen in patients with infrarenal abdominal aortic aneurysm. Bilateral iliac branch devices are an option to preserve bilateral internal iliac arteries in order to decrease the risk of buttock claudication. In Asian population, however, the aortoiliac lengths are commonly not adequate for bilateral iliac branch endoprosthesis. In this technical note, we use a novel hybrid technique to preserve bilateral internal iliac arteries in a patient without adequate aortoiliac length for bilateral iliac branch endoprosthesis. The right internal iliac artery is preserved with iliac branch endoprosthesis. The left internal iliac artery is preserved with cross-over chimney stent grafts which are deployed simultaneously with the parallel grafting of iliac extension from the contralateral gate to the right iliac branch endoprosthesis. Follow-up computed tomography and three-dimensional angiography showed complete aneurysm exclusion with flow preservation to bilateral internal iliac arteries.