Diagnosis and treatment progression of inflammatory abdominal aortic aneurysms        HUANG Xin-tian. Department of Vascular Surgery, Shanghai Ninth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
Abstract    Inflammatory abdominal aortic aneurysms (iAAA) are a variant of aortic aneurysm characterized by extensive peri-aneurysmal fibrosis, thickened walls and dense adhesions and represent between 2% and 10% of all abdominal aortic aneurysms (AAA). The etiology of iAAA is understood poorly. Aneurysm development is multifactorial with important genetic and environmental factors. Computed tomography (CT) has become the mainstay of assessing iAAA. The perioperative mortality associated with open iAAA repair is increased compared with normal AAAs, largely due to intraoperative technical difficulties related to inflammation. Endovascular repair (EVAR) for iAAA results in successful management with improvement of periaortic inflammation. It is particularly useful when open repair has failed. EVAR should be considered as first-line therapy in which anatomic parameters are favorable.