Document Detail

Mycotic Aneurysms in the Abdominal Aorta and Iliac Arteries: CT-based Grading and Correlation with Surgical Outcomes.
MedLine Citation:
PMID:  23188535     Owner:  NLM     Status:  Publisher    
BACKGROUND: Computed tomography (CT) is the modality of choice in the diagnosis of mycotic aneurysms. The present study aimed to classify the CT findings of mycotic aneurysms, and to assess their predictive value based on the correlation of a CT-based grading system with prognostic factors and outcomes. METHODS: Over the past 21 years, 40 consecutive patients underwent open surgery for mycotic aneurysms of the abdominal aorta and iliac arteries in our hospital. The CT appearances of mycotic aneurysms were categorized into four grades: grade 1, periarterial changes without destruction of the arterial wall; grade 2, presence of saccular outpouching; grade 3, extensive retroperitoneal infection; and grade 4, massive perianeurysmal hemorrhage. Clinical data were recorded for analysis. RESULTS: The surgical mortality and overall aneurysm-related mortality rates were 17.5 and 25 %, respectively. The poor prognostic predictors were shock, rupture, and concomitant gastrointestinal procedures. The increasing proportions of shock and rupture status corresponded to mycotic aneurysms of higher grades in the CT-based grading. In addition, one patient in grades 1 and 2, versus five in grades 3 and 4 (P = 0.02), required concomitant gastrointestinal procedures. The CT-based grading exhibited a strong association with surgical mortality (Cramer's V coefficient = 0.65; P = 0.002) and a relatively strong association with overall aneurysm-related mortality (Cramer's V coefficient = 0.53; P = 0.01). CONCLUSIONS: For patients surgically treated for abdominal mycotic aneurysms, the CT-based grading is correlated with clinical severity, surgical complexity, and outcomes, and thus it may serve as a simple scale for risk classification.
Chao-Han Lai; Ruey-Sheng Chang; Chwan-Yau Luo; Chung-Dann Kan; Pao-Yen Lin; Yu-Jen Yang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-28
Journal Detail:
Title:  World journal of surgery     Volume:  -     ISSN:  1432-2323     ISO Abbreviation:  World J Surg     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7704052     Medline TA:  World J Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Institute of Clinical Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan.
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