Journal
EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY
Volume 54, Issue 2, Pages 220-233Publisher
W B SAUNDERS CO LTD
DOI: 10.1016/j.ejvs.2017.05.009
Keywords
Peripheral artery disease; C-reactive protein; Biomarkers
Categories
Funding
- National Health and Medical Research Council, Australia [1117061]
- Office of Health and Medical Research
- Queensland Government
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Background: Patients with peripheral artery disease (PAD) are at substantial risk of cardiovascular events. There is interest in using blood markers, such as C-reactive protein (CRP), to monitor prognosis and treatment efficacy in PAD patients. The aim of this meta-analysis was to assess the association between CRP and major cardiovascular events in PAD patients. Method: Studies evaluating the association between CRP and major cardiovascular events (myocardial infarction, stroke, cardiac revascularisation and mortality) were identified using MEDLINE and the Cochrane library. Studies that did not include participants with PAD, measure CRP, or follow-up patients for cardiovascular events were excluded. Meta-analyses of published adjusted hazard ratios (HR) were conducted using an inverse variance weighted random effects model, and heterogeneity was assessed with the I-2 index. Results: A total of 16 studies involving 5041 participants met the inclusion criteria for the systematic review: Eight studies were included in the meta-analyses. Summary effect estimates were reported as HR comparing higher and lower quantiles, and HR per unit increase in log(e)CRP. PAD patients with higher CRP had a significantly greater risk of major cardiovascular events compared with those with lower CRP (HR 2.26, 95% CI 1.65-3.09, p < 0.001). The HR for major cardiovascular events was 1.38 (95% CI 1.16-1.63, p < 0.001) per unit increase in, log(e)CRP. Conclusions: The present findings suggest that high circulating CRP is predictive of major cardiovascular events in PAD patients. Crown Copyright (C) 2017 Published by Elsevier Ltd on behalf of European Society for Vascular Surgery. All rights reserved.
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