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Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
Inflammation and cardiovascular events in individuals with and without chronic kidney disease
D E Weiner1, H Tighiouart, E F Elsayed
1Department of Medicine, Division of Nephrology, Tufts Medical Center, Boston, Massachusetts 02111, USA. dweiner@tuftsmedicalcenter.org
Insights
Inflammation and chronic kidney disease independently predict cardiovascular events. These inflammatory markers showed similar prognostic ability to C-reactive protein for adverse outcomes.
Area of Science:
- Cardiovascular epidemiology
- Nephrology
- Clinical immunology
Background:
- Inflammation and chronic kidney disease (CKD) are known risk factors for cardiovascular events.
- Assessing inflammatory markers in CKD patients is crucial for risk stratification.
- Understanding the interplay between inflammation and CKD in predicting cardiovascular outcomes is essential.
Purpose of the Study:
- To evaluate inflammation markers (fibrinogen, albumin, white blood cell count) as risk factors for adverse cardiovascular events in individuals with and without stages 3-4 CKD.
- To assess the synergy between inflammation and CKD.
- To compare the prognostic ability of these inflammatory markers with C-reactive protein.
Main Methods:
- Utilized data from the Atherosclerosis Risk in Communities and Cardiovascular Health Study.
- Defined inflammation based on the worst quartile of at least two of three markers: fibrinogen, albumin, and white blood cell count.
- Employed Cox regression models to analyze the association with a composite of cardiac events, stroke, and mortality.
Main Results:
- Among 20,413 participants, inflammation was identified in 3,594 and CKD in 1,649.
- Both inflammation and CKD independently predicted all studied outcomes in multivariable analyses.
- The interaction between inflammation and CKD was not significant.
- Inflammation and elevated C-reactive protein demonstrated similar hazard ratios for adverse outcomes.
Conclusions:
- Inflammation, assessed by fibrinogen, albumin, and white blood cell count, is an independent predictor of cardiovascular events, stroke, and mortality.
- Chronic kidney disease also independently predicts these adverse outcomes.
- The prognostic value of these inflammatory markers is comparable to C-reactive protein.
Abstract:
Inflammation and chronic kidney disease predict cardiovascular events. Here we evaluated markers of inflammation including fibrinogen, albumin and white blood cell count in individuals with and without stages 3-4 chronic kidney disease to assess inflammation as a risk factor for adverse events, the synergy between inflammation and chronic kidney disease, and the prognostic ability of these inflammatory markers relative to that of C-reactive protein. Using Atherosclerosis Risk in Communities and Cardiovascular Health Study data, inflammation was defined by worst quartile of at least 2 of these 3 markers. In Cox regression models, inflammation was assessed as a risk factor for a composite of cardiac events, stroke and mortality as well as components of this composite. Among 20 413 patients, inflammation was identified in 3594 and chronic kidney disease in 1649. In multivariable analyses, both inflammation and chronic kidney disease predicted all outcomes, but their interaction was non-significant. In 5597 patients with C-reactive protein levels, inflammation and elevated C-reactive protein had similar hazard ratios. When focusing only on individuals with the worst quartile of white cell count and albumin, results remained consistent.
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