Chapter 3

Progression of Chronic Kidney Disease

An Evidence-based Approach to Risk Stratification

Meghan J. Elliott

Meghan J. Elliott

Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Alberta, Canada

Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada

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Meha Bhatt

Meha Bhatt

Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Alberta, Canada

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Bryan Ma

Bryan Ma

Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Alberta, Canada

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Matthew T. James

Matthew T. James

Division of Nephrology, Department of Medicine, Cumming School of Medicine, University of Calgary, Alberta, Canada

Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada

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First published: 18 November 2022

Summary

Chronic kidney disease (CKD) is associated with significant risks of several adverse outcomes, including progression to kidney failure, cardiovascular events, and mortality. This chapter provides an evidence-based approach to risk stratification for the progression of CKD. Although CKD may result from a wide variety of causes, once it is established, common pathological findings of vascular injury, glomerulosclerosis, and tubulointerstitial fibrosis have been described, regardless of the inciting cause. Several commonly ascertained measures have been identified as risk factors or risk modifiers of progression of CKD to kidney failure. The chapter reviews the evidence for these laboratory (estimated glomerular filtration rate and albuminuria), demographic (age, sex, and race), and clinical variables (acute kidney injury, blood pressure, diabetes mellitus, and cardiovascular disease). The best ways to assess patient prognosis use prediction models that combine multiple risk factors to provide estimates of a patient's absolute risk of an outcome.

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