Journal
EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
Volume 37, Issue 4, Pages 420-424Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.ejvs.2008.11.027
Keywords
Aortic aneurysm; CRP; Expansion; IL-6; MMP-9; Statins
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Funding
- Pfizer AB Sweden
- Gore Swedish Research Foundation
- County of Gavleborg Research and Development Center (FoU)
- Zoega medical research fund
- Schyberg medical research fund
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Objectives: The aim of this study was to evaluate a possible correlation between plasma levels of interteukin-6 (IL-6), metalloproteinase-9 (MMP-9) and C-reactive protein (CRP) and the expansion of small abdominal aortic aneurysms (AAAs). Design: Patients were selected from a prospective randomised clinical trial and categorised in two groups, in which one group received active treatment (azithromycin) and the other received placebo. No statistical difference in the expansion rate of AAAs between the groups was found and the two groups were considered as one cohort in the present study. Material and methods: In this study, 213 patients with AAAs between 35 and 49 mm were followed-up with ultrasound examination every 6th month. Blood samples were taken on two occasions (6 months apart). IL-6 and MMP-9 were analysed on one occasion using Quantikine (R) analysing kits (R&D Systems, Inc., USA). CRP was analysed using sensitive-CRP method. Results: Levels of IL-6, MMP-9 and CRP did not correlate with AAA expansion. Neither was there any correlation between statin medication and changes in MMP-9 levels over the 6-month period. Patients on statins had a tower expansion rate than those not taking statins: 0.16 versus 0.25 cm per year. Conclusion: No correlation was found between levels of circulating IL-6, MMP-9, CRP and the expansion of small-diameter AAAs, indicating no clinical use of these markers in AAA surveillance. (C) 2008 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
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