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Advanced kidney failure and hyperuricemia

Mariana Murea1

  • 1Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC 27157-1053, USA. mmurea@wakehealth.edu

Advances in Chronic Kidney Disease
|October 24, 2012
PubMed

Insights

Kidney failure causes uric acid (UA) buildup, increasing cardiovascular risks. This review explores UA metabolism in kidney disease and its link to heart health.

Area of Science:

  • Nephrology
  • Metabolic Disorders
  • Cardiovascular Medicine

Background:

  • Metabolic byproducts, like uric acid (UA), accumulate in kidney failure.
  • Hyperuricemia (HUA) is linked to gout and increased cardiovascular (CV) morbidity/mortality, common in kidney disease patients.
  • Serum UA levels increase as kidney function declines, while gout attacks decrease and CV death risk rises.

Purpose of the Study:

  • To review uric acid metabolism kinetics in chronic kidney disease (CKD) and dialysis.
  • To discuss potential mechanisms for gout mitigation in kidney failure.
  • To explore the role of hyperuricemia in adverse CV outcomes in kidney disease.

Main Methods:

  • Literature review of uric acid metabolism in CKD and dialysis.
  • Analysis of factors influencing gout frequency and CV mortality in kidney disease.
  • Discussion of hyperuricemic milieu's contribution to cardiovascular outcomes.

Main Results:

  • Uric acid accumulation is characteristic of declining kidney function.
  • Despite rising UA levels, gout attacks may decrease in advanced kidney disease.
  • Hyperuricemia is increasingly associated with cardiovascular complications in kidney patients.

Conclusions:

  • Understanding UA kinetics is crucial in managing kidney disease.
  • Mechanisms for gout mitigation in kidney failure warrant further investigation.
  • The hyperuricemic state in kidney disease may significantly contribute to cardiovascular risk.

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