Factors Associated With Anthropometric Indicators of Nutritional Status in Children With Chronic Kidney Disease Undergoing Peritoneal Dialysis, Hemodialysis, and After Kidney Transplant.

OBJECTIVE: The objective of the study was to demonstrate that there are differences in the factors associated with anthropometric indicators of nutritional status, with particular emphasis on arm indicators, in children with end-stage kidney disease undergoing peritoneal dialysis (PD), hemodialysis (HD), and after kidney transplant (KT). METHODS: An analytical cross-sectional study of consecutive cases included 130 children and adolescents with end-stage kidney disease undergoing substitutive treatment: 49 patients who underwent KT, 33 undergoing PD, and 47 undergoing HD. Socioeconomic data were obtained from all the 3 groups; anthropometric indicators of nutritional status were calculated. Student's t-test and analysis of variance were used for parametric variables. Chi-square test, Mann-Whitney U test, Kruskal-Wallis test, and odds ratio (OR) were used for nonparametric variables. RESULTS: The number of parents living as couples was higher for patients who underwent KT (OR = 3.5 [95% confidence interval {CI} 1.34-9.0]) and undergoing PD (OR = 3.0 [95% CI 1.06-8.8]) than those undergoing HD. The number of mothers who worked outside the home was higher for patients who underwent KT and undergoing PD than the mothers of patients undergoing HD (OR = 13.7 [95% CI: 4.56-41.05]; OR = 15.4 [CI 95% 4.8-49], respectively). Family income was higher for patients who underwent KT and undergoing PD (P = .019, P = .093, respectively). More than 40% of patients in all the 3 groups had growth impairment. Body mass index, mid-upper arm circumference, tricipital and subscapular skinfolds, total arm area, and arm fat area were affected in HD and PD groups (9 to 40%), while of the patients who underwent KT, 36.7% were overweight or obese. More than 50% of patients who underwent KT and undergoing HD and PD had involvement in the arm muscular area. CONCLUSIONS: Socioeconomic conditions are more influential for children in the HD program. The nutritional status of children after KT improves; however, not all anthropometric indicators are fully recovered. Children after KT are up to 9 times more likely to be overweight or obese.

Dietary Intake, Nutritional Status, and Body Composition in Children With End-Stage Kidney Disease on Hemodialysis or Peritoneal Dialysis.

OBJECTIVE(S): This study aimed to demonstrate that dietary intake, anthropometric indicators, and body composition in children with end-stage kidney disease differs between those on peritoneal dialysis (PD) and those on hemodialysis (HD). METHODS: This was a cross-sectional and consecutive study that included 55 children and adolescents with end-stage kidney disease who were undergoing replacement therapy (22 PD patients and 33 HD patients). Two 24-hour dietary recall surveys were conducted for each patient. Anthropometric, biochemical, and body composition indicators were estimated. A Student's t-test and a Mann-Whitney U test were used for the parametric variables, whereas association tests were estimated for the nonparametric variables (i.e., χ2, Fisher exact test, and odds ratio). Regression models were designed to predict dietary intake on anthropometric and body composition indicators. RESULTS: The mid-upper arm circumference was greater on the patients undergoing HD than on the PD patients (odds ratio = 15.8 [95% confidence interval (CI): 2.9, 85.1], P < .001); the arm muscular area was greater in the HD patients than in the PD patients (P = .07). Children on PD had significantly greater creatinine concentration (8.4 ± 3.0 mg/dL vs. 4.6 ± 1.2 mg/dL, P < .001), urea (101 ± 27 mg/dL vs. 50 ± 17 mg/dL, P < .001), and glucose (87 ± 14.4 mg/dL vs. 77 ± 10.2 mg/dL, P = .003). Children on PD had lower lipid intake (31.2 ± 15.8 vs. 40.9 ± 19.1 g/day, P = .032), lower percentage of adequacy of vitamin C (128 ± 66 vs. 146 ± 70, P = .046), and lower sodium (62 ± 43 vs. 79 ± 42, P = .044) than children on HD. Dietary intake predicted 40% to 80% of the variability in the nutritional status in children on PD and 28% to 60% in children on HD. CONCLUSIONS: Nutritional status is affected in most patients on dialysis treatment, which differs significantly among those who are undergoing PD or HD.

Models Predictive of Metabolic Syndrome Components in Obese Pediatric Patients.

BACKGROUND AND AIMS: Components of metabolic syndrome (MetS) are complications caused by abdominal obesity and insulin resistance (IR). Diagnosis of MetS by clinical indicators could help to identify patients at risk of cardiovascular disease and type 2 diabetes. We undertook this study to propose predictive indicators of MetS in obese children and adolescents. METHODS: A cross-sectional study was carried out. After obtaining informed consent and the registration of the study with an institutional research committee, 172 obese patients from an Obesity Clinic, aged 6-15 years, were included. Variables included were waist circumference (WC), glucose, high-density lipoprotein (HDL), triglycerides (TGL), blood pressure, insulin resistance (by homeostatic model assessment HOMA-index), acanthosis nigricans (AN), uric acid, serum glutamic oxaloacetic transaminase (GOT) and alanine transaminase, and hepatic sonogram. International standards for age and sex variables were used. Multivariate analysis was applied. RESULTS: Variables predicted components of MetS in children: HOMA-IR (insulin resistance by HOMA index) was increased by 2.4 in hepatic steatosis, by 0.6 for each unit of SUA (serum uric acid), and by 0.009 for every mg/dL of triglycerides. In adolescents, every cm of waist circumference increased systolic blood pressure by 0.6 mmHg, and each unit of SUA increased it by 2.9 mmHg. CONCLUSIONS: Serum uric acid and waist circumference are useful and accessible variables that can predict an increased risk of cardiovascular disease in obese pediatric patients.

Componentes clásicos y no tradicionales del síndrome metabólico en niños y adolescentes con exceso ponderal / Classic and nontraditional components of metabolic syndrome in overweight children and adolescents

Introducción: Los componentes del Síndrome Metabólico (SM) en niños son complicaciones que sin intervención oportuna tendrán repercusiones dramáticas, antes de llegar a la adultez. Objetivos: Identificar y comparar componentes clá- sicos y no tradicionales del síndrome metabólico en ni- ños y adolescentes con exceso ponderal. Material y métodos: Estudio transversal en pacientes 6-15 años con exceso ponderal. Variables: Circunferencia de cintura (cm), glucosa(mg/dl), lipoproteína de alta densidad (mg/dl), triglicéridos(mg/dl), presión arterial (mm/Hg), insulina(µU/ml), índice de resistencia insulínica (HOMA), acantosis nigricans (AN), ácido úrico (mg/dl) e hígado graso no alcohólico. Protocolo: estándares internacionales para edad y gé- nero de variables y ultrasonido hepático, diagnóstico de SM por Federación Internacional de Diabetes (FID) y Asociación Latinoamericana de Diabetes (ALAD). Estadística. Frecuencias, porcentajes y X2. Resultados: N= 172. 55.2% sexo femenino, 69.8% adolescentes (11-15 años), 30.2% niños en etapa escolar (6-10 años). Promedio de edad: 11.7 ± 2.3. Componentes de SM: Obesidad visceral 94%; pre-hipertensión 18%; hipertensión arterial 25.6%; hipertrigliceridemia 72.6%; HDL bajo 59.3%; Hiperglucemia 6.4%; Hiperuricemia 52.9%; Hiperinsulinemia 76.7%; Resistencia Insulínica (HOMA) 80.8%; Diabetes Mellitus 2.3%; AN 88.4% e Hígado graso no alcohólico 14%.Diagnóstico de SM: 48.8%. La hipertensión arterial, hiperinsulinemia, RI, hiperuricemia y AN fueron más frecuentes en adolescentes. Un componente fue mayor en niños (p 0.017) y 4 componentes en adolescentes (p 0.002). Conclusiones: Los componentes más frecuentes del SM en pediatría son factores de riesgo cardiovascular, la hiperuricemia es componente novel que debiera investigarse por ser predictor de daño endotelial. Los niños presentaron menos componentes, aumentando en cantidad y severidad en adolescentes (AU)

Introduction: The components of the metabolic syndrome (MS) in children are complications that without opportune intervention will cause dramatic repercussions before reaching adulthood. Aim: To Identify and compare the traditional and nontraditional components of the metabolic syndrome in overweight children and adolescents. Methods: A cross-sectional study was performed using data from 172 obese patients (6-15 years old). The variables analyzed were: Waist circumference (cm), glucose (mg / dl), high density lipoprotein (mg / dl), triglycerides (mg / dl), blood pressure (mm / Hg), insulin (microU / ml), index insulin resistance (HOMA), acanthosis nigricans (AN), uric acid (mg / dl) and NAFLD. Protocols: International standards for age and gender applied to the variables and liver ultrasound, diagnosis of MS by the International Diabetes Federation (IDF) and Latin American Diabetes Association (ALAD). The statistics performed were frequencies, percentages and X2. Results: N = 172. 55.2% female, 69.8% adolescents (11-15 years), 30.2% children (6-10 years). Average age: 11.7 ± 2.3. Components of MS: visceral obesity 94%; pre-hypertension 18%; hypertension 25.6%; hypertriglyceridemia 72.6%; Low HDL 59.3%; Hyperglycemia 6.4%; Hyperuricemia 52.9%; Hyperinsuli nemia 76.7%; Insulin Resistance (HOMA) 80.8%; Diabetes Mellitus 2.3%; AN 88.4% and Nonalcoholic fatty liver 14%. Diagnosis of MS: 48.8%. Hypertension, hyperinsulinemia, RI, hyperuricemia and AN were more common in adolescents. One component was higher in children (p 0.017) and 4 components in adolescents (p 0.002). Conclusions: The most frequent pediatric components of MS are cardiovascular risk factors, the hyperuricemia is a novel component that should be investigated for being predictor of endothelial damage. The children had fewer components, increasing in quantity and severity in adolescents (AU)