Surgical treatment of abdominal aortic aneurysms located close to the visceral arteries: Report of three cases

The standard surgical treatment for abdominal aortic aneurysms (AAA) is in situ replacement of the infrarenal aorta, which is associated with a low mo rtality rate. On the other hand, thoracoabdominal aortic aneurysms (TAA) re main a formidable challenge and the complications that ran occur may be sev ere including neurologic dysfunction;and renal failure. We report herein th ree cases of patients with AAA located very close to the visceral arteries, for which in situ replacement of the infrarenal aorta was not feasible due to severe inflammation and adhesion. Therefore, aortic slump closure and i n situ bypass grafting was performed to avoid reconstruction of the viscera l arteries. No major complications or operation-related deaths occurred. Th us, while in situ replacement is usually recommended over bypass grafting f or patients whose aneurysms are located very close to the visceral arteries , aortic stump closure and in situ bypass grafting should be considered as a more effective surgical option.