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

Kidney International
|April 11, 2008
PubMed

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.

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