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  • Title: Outcomes after Open Surgery for Inflammatory Abdominal Aortic Aneurysm: A 10-Year Single-Center Experience.
    Author: Floros N, Papadakis M, Wagenhäuser MU, Duran M, Simon F, Schelzig H, Oberhuber A.
    Journal: Ann Vasc Surg; 2017 Aug; 43():144-150. PubMed ID: 28478162.
    Abstract:
    BACKGROUND: Inflammatory abdominal aortic aneurysms (IAAAs) are rare clinical entities with an exaggerated inflammatory component. The aim of this study is to report outcomes of a single-center 10-year experience in open surgical management of IAAA and to compare the results with noninflammatory, atherosclerotic abdominal aortic aneurysms (non-IAAAs). METHODS: We retrospectively reviewed the medical records of 18 patients with IAAA selected out of patients with AAA who underwent open surgery in the Department of Vascular and Endovascular Surgery at the University Hospital Dusseldorf from January 2006 to December 2015. These patients were matched with controls, selected from a prospectively retained database of patients with AAA undergoing open surgery during the study period. A 1:2 case-control match regarding age, gender, and year of treatment was performed. We analyzed both groups for preoperative parameters, intraoperative findings, and early postoperative outcomes. RESULTS: The 2 groups showed considerable similarities with no significant differences in the clinical features. Both groups outlined comparable aneurysm size (62 vs. 56 mm); however, the mean preoperative C-reactive protein was found to be significantly elevated in the study group (mean value: 2.6 vs. 0.9 mg/dL, P < 0.05). Most patients were operated using a standard transperitoneal median laparotomy approach; only 1 patient of each group was operated using a left retroperitoneal approach. There was no significant difference in operation time (190 vs. 194 min) and 30-day mortality 0%. The in-hospital mortality was 11% in the study group and 0% in the control group. We found a significant higher complication rate in the study group 10 (56%) vs. 12 (33%). The major complications were also more frequent in the study group 4 (22%) vs. 6 (16.7%). IAAA showed a statistically significant longer length of intensive care unit and hospital stay when compared with non-IAAA (7 and 20 days vs. 2 and 14 days, P < 0.05). IAAAs outlined a significantly greater transfusion requirement for erythrocytes and fresh frozen plasma than non-IAAA. CONCLUSIONS: Open surgical treatment of IAAA guarantees a regression of the inflammatory process in most patients, which was detected through ultrasound in follow-up examination, although the approach to the surgical site is highly demanding. IAAA exhibits clear gender predominance and is associated with significantly higher transfusion requirement, early morbidity, and length of stay.
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