A surgical case of inflammatory abdominal aortic aneurysm that responded remarkably to preoperative steroid therapy

Abstract

We describe the surgical management of a 58-year-old man with inflammatory abdominal aortic aneurysm (IAAA) following treatment with preoperative steroids. The patient was transferred to our institution for abdominal pain and fever. Contrast-enhanced computed tomography showed juxtarenal abdominal aortic aneurysm surrounded by dense perianeurysmal fibrous tissue. Under a diagnosis of IAAA, steroid therapy with prednisolone was initiated to control the perianeurysmal inflammation. It continued for 3 weeks with a decreasing dose schedule, with remarkable decrease in the soft tissue mass. The patient underwent elective surgery 21 days after commencing steroid therapy. During surgery, adjacent organs were adherent to the aneurysmal wall, but fibrotic change to the retroperitoneum was very limited. He recovered uneventfully, and was discharged on postoperative Day 10. Therefore, it can be concluded that preoperative steroid therapy could minimize the operative risk for IAAAs, and improve surgical outcome.

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