Resumo

MORENO, Greysi; MARCANO, Gilmary; LUGO, Gustavo  e  LOPEZ, Michelle. Potential Renal Acid Load in children with Chronic Kidney Disease. Arch Venez Puer Ped [online]. 2016, vol.79, n.2, pp.62-68. ISSN 0004-0649.

It has been shown that metabolic acidosis accelerates the progression of Chronic Kidney Disease (CKD) and that modern diet is characterized by a high content of acid -forming elements that could contribute to this metabolic disorder. The aim of this study was to estimate the Potential Renal Acid Load (PRAL) in CKD patients attended at the Department of Nephrology at the Children's Hospital J.M. de los Ríos from April 2014 through February 2016. Method: A descriptive cross-sectional study was conducted in 28 children (10 months-17 years) with the diagnosis of CKD in stages 1 , 2, 3 and 4. Nutritional status was evaluated by weight, height and mid-arm circumference, and the diet composition by food frequency questionnaire and 24 hours intake reminder. PRAL was calculated by the method of Manz and Remer. Results: Height and nutritional status were under normal values in 15 and 9 patients respectively. Meat and cereal intake were high, whereas vegetables and fruit intake were low. Protein intake was high in 22 patients. PRAL was 16 ±10.7 mEq/day and a positive correlation was observed with protein intake (p=0,001), daily rations of meat (p=0,010), fat (p=0,006), and cereals (p=0,022), and a negative correlation with vegetable intake (p=0,032). Conclusions: The dietary pattern of children with CKD may contribute to the progression of the disease by promoting metabolic acidosis. PRAL must be addressed as part of the nutritional treatment of children with CKD.

Palavras-chave : Chronic Kidney Disease; CKD; Potential Renal Acid Load; PRAL; metabolic acidosis; nutrition.

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