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Intra-abdominal acute diseases simulating rupture of abdominal aortic aneurysms
M Porcellini1, B Bernardo, L Del Viscovo
1Department of Vascular Surgery, Medical School, University Federico II, Naples, Italy.
Objective:
To assess preoperative diagnosis of intra-abdominal acute diseases manifesting as a RAAA and determine treatment options.
Design:
Retrospective review, with a mean follow-up period of 4 years.
Setting:
Vascular Department, Medical School, University "Federico II" of Naples, Italy.
Methods:
In 12 patients (8.7%) with clinical suggestion of RAAA were found other intra-abdominal acute lesions, associated with asymptomatic aortic aneurysm in 10 of them and absence in one; the remainder had an intact common iliac artery aneurysm. Sonography was performed in the operating room in 5 patients (41.6%) in shock, 4 hemodynamically stable patients (33.3%) had CT scanning or MRI investigations, while 3 (25%) underwent surgery directly.
Interventions:
Three patients were not operated; one half of patients were submitted to emergency laparotomy and in the remaining 3 patients a preoperative preparation was made. Simultaneous aneurysm repair and nonvascular procedures were performed in 4 patients; nonvascular operations alone were carried out in 5 patients. 4 patients underwent a successful later treatment of their aneurysms: two aneurysmectomy and two endoluminal stenting were done within 4 months.
Results:
Weight loss and fever were found at 58.3% and 50% of patients with concomitant intra-abdominal acute diseases; both were present in 41.6%. Noninvasive imaging techniques detected associate lesions in 6 of 8 patients (75%) and absence of aneurysm in one having a bleeding adrenal mass. There were three in-hospital deaths: one patient died of metastatic disease without operation and two after surgery (22.2%). Two late deaths from cancer cachexia occurred at 11 months and 3.6 years.
Conclusions:
Atypical findings, such as weight loss and fever may be suggestive of coincident lesions in patients with suspected RAAA. Noninvasive assessment may identify associated diseases simulating aneurysmal rupture, without a delay in the treatment. A selective policy of medical or operative therapy may be effective to minimize risk of complications and mortality rate.