Long-Term Results of Reconstruction of the Inferior Mesenteric and Internal Iliac Arteries During Resection of the Aneurysm of the Infrarenal Aortic Segment

Abstract

The OBJECTIVE is to assess the patency of the inferior mesenteric artery and internal iliac arteries in the remote period after resection of the aneurysm of the infrarenal aortic segment. MATERIAL AND METHODS. The study included 33 patients who underwent resection of the abdominal aortic aneurysm with reconstruction of the inferior mesenteric artery and (or) internal iliac arteries from 1998 to 2017. All patients were examined with computed tomography scan with contrast to assess the patency of inferior mesenteric artery and internal iliac arteries. RESULTS. Patients were observed from 0.5 to 15 years. Among 30 patients with inferior mesenteric artery implanted into the prosthesis, 23 (76 %) patients had a passable inferior mesenteric artery and 7 patients had an occluded inferior mesenteric artery. The implanted inferior mesenteric artery maintained its patency for 3 years in 100% of cases, from 3 to 5 years – in 86%, after 5 years and more – in 62%. In one patient who underwent reconstruction of the internal iliac artery, thrombosis of the prosthetic-internal iliac shunt was found out in 1.5 years after the operation, without any clinical manifestations. One patient, underwent the reconstruction of the internal iliac artery, was diagnosed with thrombosis of the prosthetic-internal iliac shunt in 1.5 years after the operation, which was not accompanied by clinical manifestations. CONCLUSION. The high remote patency of the inferior mesenteric artery and internal iliac arteries reconstructed during resection of the aneurysm of the infrarenal aortic segment indicates the need for this procedure in order to prevent ischemic disorders of the digestive organs and pelvis.