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Relation of aortic valve calcium to chronic kidney disease (from the Chronic Renal Insufficiency Cohort Study).

Abstract
Although subjects with chronic kidney disease (CKD) are at markedly increased risk for cardiovascular mortality, the relation between CKD and aortic valve calcification has not been fully elucidated. Also, few data are available on the relation of aortic valve calcification and earlier stages of CKD. We sought to assess the relation of aortic valve calcium (AVC) with estimated glomerular filtration rate (eGFR), traditional and novel cardiovascular risk factors, and markers of bone metabolism in the Chronic Renal Insufficiency Cohort (CRIC) Study. All patients who underwent aortic valve scanning in the CRIC study were included. The relation between AVC and eGFR, traditional and novel cardiovascular risk factors, and markers of calcium metabolism were analyzed using both unadjusted and adjusted regression models. A total of 1,964 CRIC participants underwent computed tomography for AVC quantification. Decreased renal function was independently associated with increased levels of AVC (eGFR 47.11, 44.17, and 39 ml/min/1.73 m2, respectively, p<0.001). This association persisted after adjusting for traditional, but not novel, AVC risk factors. Adjusted regression models identified several traditional and novel risk factors for AVC in patients with CKD. There was a difference in AVC risk factors between black and nonblack patients. In conclusion, our study shows that eGFR is associated in a dose-dependent manner with AVC in patients with CKD, and this association is independent of traditional cardiovascular risk factors.
AuthorsMarie A Guerraty, Boyang Chai, Jesse Y Hsu, Akinlolu O Ojo, Yanlin Gao, Wei Yang, Martin G Keane, Matthew J Budoff, Emile R Mohler 3rd, CRIC Study Investigators
JournalThe American journal of cardiology (Am J Cardiol) Vol. 115 Issue 9 Pg. 1281-6 (May 01 2015) ISSN: 1879-1913 [Electronic] United States
PMID25791240 (Publication Type: Journal Article, Research Support, N.I.H., Extramural)
CopyrightCopyright © 2015 Elsevier Inc. All rights reserved.
Chemical References
  • Lipoprotein(a)
  • C-Reactive Protein
Topics
  • Adult
  • Aged
  • Aortic Valve (pathology, physiopathology)
  • Aortic Valve Stenosis (blood, epidemiology, physiopathology)
  • C-Reactive Protein (metabolism)
  • Calcinosis (blood, epidemiology, physiopathology)
  • Cohort Studies
  • Female
  • Glomerular Filtration Rate
  • Humans
  • Lipoprotein(a) (blood)
  • Male
  • Middle Aged
  • Prevalence
  • Renal Insufficiency, Chronic (blood, complications, diagnosis)
  • Risk Factors
  • Young Adult

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