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Nutritional status and protein intake in peritoneal dialysis patients

John M Burkart, MD
Section Editor
Steve J Schwab, MD
Deputy Editor
Alice M Sheridan, MD


Moderate to severe malnutrition (also called protein-energy wasting) is associated with an increased risk of death in patients on both hemodialysis and peritoneal dialysis. The early identification and treatment of malnutrition may improve nutritional status and patient outcome.

This topic reviews malnutrition among patients treated with peritoneal dialysis. Malnutrition among hemodialysis patients and among patients with chronic kidney disease who are not on dialysis is discussed elsewhere. (See "Patient survival and maintenance dialysis", section on 'Malnutrition' and "Overview of the management of chronic kidney disease in adults", section on 'Malnutrition'.)

Malnutrition among older patients in the general population is discussed elsewhere. (See "Hospital management of older adults", section on 'Malnutrition'.)


The diagnosis of malnutrition (protein-energy wasting) is based upon biochemical measures, anthropometric parameters, and history of dietary intake. In 2008, the International Society for Renal Nutrition and Metabolism (ISRNM) published standardized criteria for the diagnosis [1].

Four categories of criteria are recognized:

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Literature review current through: Nov 2017. | This topic last updated: Jan 12, 2017.
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