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Arch. venez. pueric. pediatr ; 76(2): 54-60, jun. 2013. tab
Article in Spanish | LILACS | ID: lil-702758

ABSTRACT

Objetivo: Identificar las características de la alimentación de niños y adolescentes desnutridos con acidosis. Métodos: Estudio observacional, transversal controlado en 20 pacientes con diagnóstico de desnutrición, menores de 15 años de edad. Se dividieron en dos grupos: A. 12 pacientes con acidosis metabólica y B: 8 pacientes sin acidosis metabólica. Se evaluó la alimentación por recordatorio de 24 horas durante 7 días consecutivos y frecuencia de consumo. Se realizaron evaluación clínica y antropométrica, gases venosos, electrolitos y química sanguínea, uroanálisis y hematología completa. Resultados: En relación al consumo de macronutrientes no se encontraron diferencias estadísticamente significativas entre ambos grupos. La talla presentó un z-score negativo mayor en los desnutridos con acidosis metabólica: -1,15±0,73 vs -0,21±1,18. (p=0,04). Los desnutridos con acidosis metabólica presentaron mayor consumo de queso, leche completa, carnes rojas y un menor consumo de frutas, vegetales y leguminosas. Los pacientes desnutridos sin acidosis metabólica presentaron un consumo mayor de frutas, vegetales, verduras y leguminosas y menor consumo de huevo, carnes rojas y leche completa. Los desnutridos con acidosis metabólica consumieron mayor cantidad de aminoácidos no volátiles con mayor potencial de carga acida como la metionina y cisteína; esta diferencia entre ambos grupos fue significativa: p=0,000 para metionina y p=0,030 para cisteína. Conclusiones: La alimentación de los pacientes desnutridos con acidosis metabólica fue diferente, con mayor consumo de aminoácidos no volátiles que la de los desnutridos sin acidosis metabólica. Esta mayor ingesta de aminoácidos no volátiles podría explicar la generación de acidosis metabólica en algunos pacientes desnutridos.


Objective: To identify the feeding characteristics of malnourished children with metabolic acidosis. Methods: Observational, crosssectional study in 20 patients under 15 years of age with diagnosis of malnutrition. The patients were divided into two groups: A: 12 children with metabolic acidosis and B: 8 children with no metabolic acidosis. Food intake was evaluated by a 24 hours reminder during 7 consecutive days and frequency of consumption. Anthropometric data, venous gases, serum electrolytes, blood chemistry, urine analysis and complete blood count were analyzed. Results: Nutrient intake showed statistical difference between the two groups. Height was significantly lower in malnourished children with metabolic acidosis than in children with no metabolic acidosis: z score -1,15±0,73 vs -0,21±1,18 (p=0,04). Children with metabolic acidosis had increased intake of cheese, milk, red meat and low consumption of fruits, vegetables and legumes. Children with no metabolic acidosis had a high intake of fruits, vegetables and legumes and low consumption of eggs, red meat and milk. Although energy, protein, fat and carbohydrate intake was higher in children with metabolic acidosis, the difference was not significant. Malnourished children with metabolic acidosis consumed higher amount of non-volatile amino acids with greater potential acid load such as methionine and cysteine. This difference in both amino acids intake between the two groups was significant (p=0.000 for methionine and p=0,030 for cysteine). Conclusions: Intake of non volatile aminoacids was higher in malnourished children with metabolic acidosis. This difference may explain the generation of metabolic acidosis in some malnourished patients.

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