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Carotid Atherosclerosis and Relation to Growth of Infrarenal Aortic Diameter and Follow-up Diameter: The Tromsø Study.
MedLine Citation:
PMID:  23267698     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: This research aims to study how carotid atherosclerosis is related to growth of infrarenal aortic diameter and aneurysmal formation. DESIGN: Population-based follow-up study. MATERIALS AND METHODS: At baseline, ultrasound examination of the carotid artery and the abdominal aorta was performed in 4241 persons from a general population with no evidence of abdominal aortic aneurysm (AAA). The burden of atherosclerosis was assessed as carotid total plaque area (TPA). After a mean follow-up of 6.3 years, a new ultrasound examination was performed and measurements of the aortic diameter and carotid TPA were repeated. The effects on aortic diameter progression, follow-up diameter and risk for AAA were assessed in multiple linear and logistic regression models according to carotid TPA, adjusted for known risk factors. RESULTS: When analysing AAA as a dichotomous variable, a borderline association between atherosclerosis and AAA could be demonstrated. When modelling aortic diameter as a continuous variable, a 1-SD increase in 5 years' carotid plaque area (ΔTPA) was associated with a 0.12-mm growth in infrarenal aortic diameter (standard error (SE) 0.04) and a 0.20-mm wider aorta at follow-up (SE 0.06). No independent relation was seen for baseline atherosclerosis. CONCLUSIONS: Carotid plaque progression was positively related to growth in infrarenal aortic diameter and aortic diameter at follow-up. Whether this co-variation between plaque growth and aortic diameter growth is causally related or independent events is still an open question.
Authors:
S H Johnsen; S H Forsdahl; S Solberg; K Singh; B K Jacobsen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-22
Journal Detail:
Title:  European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery     Volume:  -     ISSN:  1532-2165     ISO Abbreviation:  Eur J Vasc Endovasc Surg     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9512728     Medline TA:  Eur J Vasc Endovasc Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Neurology and Neurophysiology, University Hospital North Norway, Tromsø, Norway; Department of Clinical Medicine, University of Tromsø, Tromsø, Norway. Electronic address: sh_johnsen@live.no.
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