Nutrition in children with continuous renal replacement therapy

Introduction: The aim of this study was to analyse the nutritional state, diet and gastrointestinal complications of children that require continuous renal replacement therapy (CRRT). Material and methods: A retrospective analysis of a database, which included the information about patients who required CRRT between the years 2013 and 2017. Data were collected on the replacement technique, type of nutrition, calorie and protein intake, gastrointestinal complications, and clinical course. Children on extracorporeal membrane oxygenation (ECMO) were compared with the rest of patients. Results: A total of 65 children (61.5% male) were treated with CRRT, and 24 patients (37%) also needed ECMO support. Just over one-quarter (27.7%) of patients had a weight less than P3, and 48.4% of them a height less than P3. At the beginning of the technique, 31 children (47.7%) received enteral nutrition, at the end, there were 52 patients receiving enteral nutrition (80%). The transpyloric tube was used to provide nutrition in 76% of the cases. The median calorie intake was 63 kcal/kg/day, and the protein intake was 1.6 g/kg/day. There were gastrointestinal difficulties during the process in 48 patients (73.8%), with 29 (44.6%) patients being diagnosed with gastric distension or excessive gastric remains, 22 (33.8%) with constipation, 8 (12.3%) with vomiting, and 4 (6.1%) diarrhoea. One patient treated with ECMO presented with intestinal ischaemia. Enteral nutrition was cancelled in 3 patients (4.6%) due to the complications. There was no relationship between complications and type of diet or ECMO assistance. Conclusions: A high percentage of children treated with CRRT showed undernutrition but they had adequate tolerance to the enteral nutrition. Although the gastrointestinal complications percentage was high in a the low number of subjects, these complications are the reason why enteral nutrition was stopped. ECMO patients do not show higher incidence of digestive complications. Resumen: Introducción: El objetivo de este estudio ha sido analizar el estado de nutrición, la alimentación y las complicaciones digestivas de los niños que precisan técnicas de depuración extrarrenal continua (TDEC). Material y métodos: Estudio retrospectivo realizado sobre una base de datos prospectiva de los niños tratados con TDEC entre 2013 y 2017. Se analizaron las características de los pacientes, la técnica de depuración, el tipo de nutrición, el aporte calórico y proteico, las complicacion