Meeting nutritional needs of infants under 3 months of life within the first week after cardiovascular surgery.

BACKGROUND: After heart surgery requiring cardiopulmonary bypass, neonates have a profound metabolic response to stress. If adequate nutritional support is not provided this leads to loss of lean mass and deterioration of vital organs. The objective of this study was to describe the nutritional status and nutritional support achieved in infants younger than 3 months of life undergo in cardiovascular surgery. METHODS: A prospective, descriptive study was conducted in a Pediatric Cardiovascular intensive therapy at tertiary care center. All patients younger than 3 months of life admitted to the cardiovascular unit undergoing heart surgery between April 2013 and May2014 were included. We proposed to achieve 67 kcal/kg/day as one of the nutritional intervention goals. The children were evaluated on admission and at 3 and 7 days post-surgery. RESULTS: Seventy-four patients were evaluated. Total parenteral nutrition could be implemented in all patients that were entered into the protocol requiring parenteral nutrition. Mean volume administered over this period was 50 mL/kg/day (range, 25 to 80 mL/kg/day). Evaluation on admission, at 72 hours, and one week postoperatively showed that 70%, 69%, and 62.7% of the patients, respectively, were not able to achieve the 67 kcal/kg/day proposed as one of the nutritional intervention goals. It was found that at the three study time points enteral and parental caloric intake could cover 100% of the metabolic resting energy expenditure (REE) estimated using the Schofield and WHO equations with no significant differences between the two. CONCLUSIONS: Although the calorie intake proposed by our intervention was not achieved, it did cover 100% of the REE calculated by the equations.

Resultados de la implementación de un protocolo de soporte nutricional en grandes quemados pediátricos internados en la Unidad de Cuidados Intensivos / Results of the implementation of a nutritional support protocol for major burn pediatric patients hospitalized in the Intensive Care Unit

Introducción: "Gran quemado" es quien sufre lesiones por daño térmico que afectan más del 30% de su superficie corporal (SC). El hipercatabolismo secundario causa pérdida de masa magra y retraso de la cicatrización de heridas. Objetivo: Describir y analizar los resultados de la implementación de un protocolo de soporte nutricional en niños quemados graves internados en una Unidad de Cuidados Intensivos durante las primeras 6 semanas evolutivas. Población y métodos: Diseño analítico, prospectivo, observacional y longitudinal. Se midieron peso, talla, porcentaje de SC quemada, días de internación en la Unidad de Cuidados Intensivos y mortalidad. Se analizaron tasa metabólica basal por calorimetría indirecta y fórmula de Schofield, cobertura de aporte energético y proteico, prealbúmina, proteína C reactiva, vitaminas A, D, E, cobre y zinc semanales. Resultados: Se incluyeron 18 pacientes (media: 3,9 años, 49% de SC quemada). Se alcanzó la media de objetivo energético en la segunda semana y el requerimiento proteico en la semana 6. Doce pacientes requirieron nutrición parenteral complementaria sin complicaciones. Se hallaron parámetros de hipermetabolismo, que se normalizaron a las 4-6 semanas del ingreso, excepto la proteína C reactiva. Las vitaminas A y E y elementos traza (zinc y cobre) estaban descendidos al ingreso con mejoría posterior. La vitamina D persistió en valores bajos. Un paciente falleció. Conclusiones: La implementación del protocolo permitió lograr el aporte de la totalidad del requerimiento energético; la cobertura del requerimiento proteico se postergó hasta la semana 6. Es necesario hacer hincapié en resolver las limitaciones para alcanzar este último.

Introduction. "Major burn" is used to describe a person who suffers thermal damage affecting more than 30% of his/her total body surface area (TBSA). The secondary hypercatabolism causes lean body mass loss and delayed wound healing. Objective. To describe and analyze the results of implementing a nutritional support protocol for pediatric burn patients hospitalized in the intensive care unit in the first 6 weeks. Population an d methods. Analytical, prospective, observational, and longitudinal design. Weight, height, %TBSA, length of stay in the intensive care unit, and mortality were measured. The basal metabolic rate was measured by indirect calorimetry and the Schofield equation, and protein and energy intake, prealbumin, C-reactive protein, vitamins A, D, E, copper, and zinc levels were analyzed every week. Results. Eighteen patients were included (mean: 3.9 years old, 49%TBSA). The mean energy target was achieved by week 2 and protein requirements were met by week 6. Twelve patients required complementary parenteral nutrition and there were no complications. Hypermetabolism parameters were observed, which returned to normal 4-6 weeks after hospitalization, except for C-reactive protein. Vitamins A and E and trace elements (zinc and copper) were reduced at the time of admission and showed a subsequent improvement. Vitamin D remained low. One patient died. Conclusions. Implementing the protocol was useful to cover the total energy requirement; the coverage of protein requirements was delayed until week 6. It is necessary to focus on solving limitations to achieve the latter.

Results of the implementation of a nutritional support protocol for major burn pediatric patients hospitalized in the Intensive Care Unit. / Resultados de la implementación de un protocolo de soporte nutricional en grandes quemados pediátricos internados en la Unidad de Cuidados Intensivos.

INTRODUCTION: "Major burn" is used to describe a person who suffers thermal damage affecting more than 30% of his/her total body surface area (TBSA). The secondary hypercatabolism causes lean body mass loss and delayed wound healing. OBJECTIVE: To describe and analyze the results of implementing a nutritional support protocol for pediatric burn patients hospitalized in the intensive care unit in the first 6 weeks. POPULATION AND METHODS: Analytical, prospective, observational, and longitudinal design. Weight, height, %TBSA, length of stay in the intensive care unit, and mortality were measured. The basal metabolic rate was measured by indirect calorimetry and the Schofield equation, and protein and energy intake, prealbumin, C-reactive protein, vitamins A, D, E, copper, and zinc levels were analyzed every week. RESULTS: Eighteen patients were included (mean: 3.9 years old, 49%TBSA). The mean energy target was achieved by week 2 and protein requirements were met by week 6. Twelve patients required complementary parenteral nutrition and there were no complications. Hypermetabolism parameters were observed, which returned to normal 4-6 weeks after hospitalization, except for C-reactive protein. Vitamins A and E and trace elements (zinc and copper) were reduced at the time of admission and showed a subsequent improvement. Vitamin D remained low. One patient died. CONCLUSIONS: Implementing the protocol was useful to cover the total energy requirement; the coverage of protein requirements was delayed until week 6. It is necessary to focus on solving limitations to achieve the latter.

Introducción: "Gran quemado" es quien sufre lesiones por daño térmico que afectan más del 30% de su superficie corporal (SC). El hipercatabolismo secundario causa pérdida de masa magra y retraso de la cicatrización de heridas. Objetivo: Describir y analizar los resultados de la implementación de un protocolo de soporte nutricional en niños quemados graves internados en una Unidad de Cuidados Intensivos durante las primeras 6 semanas evolutivas. Población y métodos: Diseño analítico, prospectivo, observacional y longitudinal. Se midieron peso, talla, porcentaje de SC quemada, días de internación en la Unidad de Cuidados Intensivos y mortalidad. Se analizaron tasa metabólica basal por calorimetría indirecta y fórmula de Schofield, cobertura de aporte energético y proteico, prealbúmina, proteína C reactiva, vitaminas A, D, E, cobre y zinc semanales. Resultados: Se incluyeron 18 pacientes (media: 3,9 años, 49% de SC quemada). Se alcanzó la media de objetivo energético en la segunda semana y el requerimiento proteico en la semana 6. Doce pacientes requirieron nutrición parenteral complementaria sin complicaciones. Se hallaron parámetros de hipermetabolismo, que se normalizaron a las 4-6 semanas del ingreso, excepto la proteína C reactiva. Las vitaminas A y E y elementos traza (zinc y cobre) estaban descendidos al ingreso con mejoría posterior. La vitamina D persistió en valores bajos. Un paciente falleció. Conclusiones: La implementación del protocolo permitió lograr el aporte de la totalidad del requerimiento energético; la cobertura del requerimiento proteico se postergó hasta la semana 6. Es necesario hacer hincapié en resolver las limitaciones para alcanzar este último.

Composición corporal y gasto energético en población de niños y adolescentes con mielomeningocele / Body composition and energy expenditure in a population of children and adolescents with myelomeningocele

Introducción: El mielomeningocele es un defecto congénito con cierre incompleto del tubo neural. Presenta alteraciones en la composición corporal y alta prevalencia de obesidad. Es difícil detectar el indicador más apropiado para diagnóstico nutricional por impresición de las medidas antropométricas. Objetivo: Describir en una población de pacientes con mielomeningocele seguidos en el "Hospital Garrahan", la composición corporal, gasto energético en reposo y trastornos metabólicos, comparando los pacientes con mielomeningocele obesos con una población control con obesidad multifactorial. Población y Métodos: Se realizó antropometría, impedanciometría, pliegues cutáneos, perímetro braquial, calorimetría indirecta y determinaciones bioquímicas a todos los pacientes con mielomeningocele entre junio/2013-abril/2014, previa firma del Consentimiento Informado. Resultados: Se evaluaron 131 pacientes de 0,718,6 años, clasificados según Score-Z de Índice de Masa Corporal en 15% bajo peso, 42% normopeso, 12% sobrepeso y 31% obesidad. Se encontró alta correlación (r²0,74) entre %masa grasa por impedanciometría vs calculado con pliegues cutaneos. Los pacientes con % masa grasa elevada vs %masa grasa normal tuvieron mayor score-Z de Indice de Masa Corporal (1,07 vs -0,27 p0,0001) aunque ambos valores se encontraban dentro de parámetros normales. Hubo menor gasto energético en reposo en los pacientes con mielomeningocele obesos comparado con el esperado y con obesos multifactoriales. Conclusiones: Se encontró alto porcentaje de sobrepeso/obesidad en la población con mielomeningocele. Los pliegues cutáneos serían más apropiados para detectar obesidad. Los pacientes con mielomeningocele obesos presentaron gasto energetico en reposo menor al esperado y a los controles. La indicación de energía debe ser personalizada.

Introduction. Myelomeningocele is a congenital defect that occurs when the neural tube fails to close completely. It causes body composition alterations and a high prevalence of obesity. It is difficult to detect the most adequate indicator for a nutritional diagnosis due to the impossibility of recording accurate anthropometric measurements. Objective. To describe body composition, resting energy expenditure and metabolic disorders in a population of patients with myelomeningocele managed at "Hospital Garrahan" by comparing obese patients with myelomeningocele and a control population with multifactorial obesity. Population and methods. An anthropometry, an impedance analysis, skinfold equations, arm circumference equations, indirect calorimetry, and biochemical determinations were done to all patients with myelomeningocele between June 2013 and April 2014, once the informed consent had been signed. Results. 131 patients aged 0.7-18.6 years were assessed; they were classified according to their body mass index Z-score into low weight (15%), normal weight (42%), overweight (12%), and obese (31%). A high correlation (r: 20.74) was observed between the fat mass % measured by impedance analysis versus that estimated using skinfolds. Patients with a high fat mass % had a higher body mass index Z-score than those with a normal fat mass % (1.07 versus -0.27, p: 0.0001) although both values were within normal parameters. A lower resting energy expenditure was observed among obese patients with myelomeningocele than predicted and in comparison with multifactorial obese controls. Conclusions. A high percentage of overweight/obesity was found in the population with myelomeningocele. Skinfold equations would be more adequate to detect obesity. Obese patients with myelomeningocele had a lower resting energy expenditure than predicted and in comparison with controls. Energy indication should be customized.

Body composition and energy expenditure in a population of children and adolescents with myelomeningocele. / Composición corporal y gasto energético en población de niños y adolescentes con mielomeningocele.

INTRODUCTION: Myelomeningocele is a congenital defect that occurs when the neural tube fails to close completely. It causes body composition alterations and a high prevalence of obesity. It is difficult to detect the most adequate indicator for a nutritional diagnosis due to the impossibility of recording accurate anthropometric measurements. OBJECTIVE: To describe body composition, resting energy expenditure and metabolic disorders in a population of patients with myelomeningocele managed at "Hospital Garrahan" by comparing obese patients with myelomeningocele and a control population with multifactorial obesity. POPULATION AND METHODS: An anthropometry, an impedance analysis, skinfold equations, arm circumference equations, indirect calorimetry, and biochemical determinations were done to all patients with myelomeningocele between June 2013 and April 2014, once the informed consent had been signed. RESULTS: 131 patients aged 0.7-18.6 years were assessed; they were classified according to their body mass index Z-score into low weight (15%), normal weight (42%), overweight (12%), and obese (31%). A high correlation (r: 20.74) was observed between the fat mass % measured by impedance analysis versus that estimated using skinfolds. Patients with a high fat mass % had a higher body mass index Z-score than those with a normal fat mass % (1.07 versus -0.27, p: 0.0001) although both values were within normal parameters. A lower resting energy expenditure was observed among obese patients with myelomeningocele than predicted and in comparison with multifactorial obese controls. CONCLUSIONS: A high percentage of overweight/obesity was found in the population with myelomeningocele. Skinfold equations would be more adequate to detect obesity. Obese patients with myelomeningocele had a lower resting energy expenditure than predicted and in comparison with controls. Energy indication should be customized.

INTRODUCCIÓN: El mielomeningocele es un defecto congénito con cierre incompleto del tubo neural. Presenta alteraciones en la composición corporal y alta prevalencia de obesidad. Es difícil detectar el indicador más apropiado para diagnóstico nutricional por impresición de las medidas antropométricas. OBJETIVO: Describir en una población de pacientes con mielomeningocele seguidos en el "Hospital Garrahan", la composición corporal, gasto energético en reposo y trastornos metabólicos, comparando los pacientes con mielomeningocele obesos con una población control con obesidad multifactorial. POBLACIÓN Y MÉTODOS: Se realizó antropometría, impedanciometría, pliegues cutáneos, perímetro braquial, calorimetría indirecta y determinaciones bioquímicas a todos los pacientes con mielomeningocele entre junio/2013-abril/2014, previa firma del Consentimiento Informado. RESULTADOS: Se evaluaron 131 pacientes de 0,718,6 años, clasificados según Score-Z de Índice de Masa Corporal en 15% bajo peso, 42% normopeso, 12% sobrepeso y 31% obesidad. Se encontró alta correlación (r20,74) entre %masa grasa por impedanciometría vs calculado con pliegues cutaneos. Los pacientes con % masa grasa elevada vs %masa grasa normal tuvieron mayor score-Z de Indice de Masa Corporal (1,07 vs -0,27 p0,0001) aunque ambos valores se encontraban dentro de parámetros normales. Hubo menor gasto energético en reposo en los pacientes con mielomeningocele obesos comparado con el esperado y con obesos multifactoriales. CONCLUSIONES: Se encontró alto porcentaje de sobrepeso/obesidad en la población con mielomeningocele. Los pliegues cutáneos serían más apropiados para detectar obesidad. Los pacientes con mielomeningocele obesos presentaron gasto energetico en reposo menor al esperado y a los controles. La indicación de energía debe ser personalizada.

Energy expenditure, body composition, and prevalence of metabolic disorders in patients with Duchenne muscular dystrophy.

INTRODUCTION: Duchenne muscular dystrophy (DMD) is a severe muscular disease characterized by progressive loss of functional muscle mass followed by changes in body composition. AIM: To describe body composition, resting energy expenditure (REE), and metabolic disorders in DMD patients followed-up at a tertiary care center. To analyze the association with type of steroid and ambulatory status, and to compare obese DMD patients with patients with multifactorial obesity. POPULATION AND METHODS: A prospective, observational, cross-sectional study was conducted. Anthropometric measurements were taken, evaluating body composition with bioelectrical impedance analysis (BIA), REE with indirect calorimetry, and biochemical parameters in all DMD patients seen between June 2013 and April 2014. RESULTS: 63 boys between 5.4 and 18.7years of age were evaluated. Diagnosis of obesity ranged from 28% measuring body mass indexZ-score (BMIZ-score) to 70% using percentage of fat mass (%FM). Patients who had lost gait had a significantly higher %FM than those in whom gait was preserved (72% vs 46%, p<0.05). Insulin resistance was present in 29% associated with BMI Z-score and waist circumference and 40% had dyslipidemia associated with %FM, both of which were steroid independent. In obese DMD patients REE was lower than predicted and also lower than controls, and persist when dividing the patients into ambulators and non-ambulators. CONCLUSIONS: A high prevalence of obesity was observed. BMI-Z-score underestimates the degree of FM. No correlation was found between steroid type and body composition or metabolic disorders. No differences were found in REE between ambulators and non-ambulators. Obese DMD patients have a lower REE than controls.

Evaluación nutricional de la población con antecedente de craneofaringioma infantil en el Hospital "Prof. Dr. Juan P. Garrahan" / Nutritional assessment of a population with a history of childhood craniopharyngioma seen at Hospital "Prof. Dr. Juan P. Garrahan"

Introducción. los craneofaringiomas son malformaciones histológicamente benignas entre el hipotálamo y la hipófisis que pueden afectar la secreción hormonal clave en la regulación endócrina y modulación de la saciedad. Si bien se trata de una enfermedad relativamente benigna, la combinación de obesidad grave de origen hipotalámico y las comorbilidades asociadas a ella disminuyen la calidad de vida. Objetivo. Evaluar el estado nutricional de pacientes operados de craneofaringioma infantil. Población y métodos. Pacientes menores de 21 años al momento del estudio que requirieron cirugía por craneofaringioma en el Hospital de Pediatría Garrahan y que firmaron el consentimiento informado. Se realizó la evaluación antropométrica, composición corporal con impedanciometría, gasto energético con calorimetría indirecta e ingesta energética. Se determinó la resistencia a la insulina y la dislipidemia. Resultados. Se incluyeron 39 pacientes; 41%, normopeso y 59%, obesos. El 68% de los pacientes presentó distribución grasa central; 40%, resistencia a la insulina; y 32%, dislipidemia. No se encontraron diferencias significativas en la presencia de resistencia a la insulina, dislipidemia, gasto energético en reposo ni en la ingesta entre obesos vs. normopeso. El 77% de los pacientes obesos presentó bajo gasto energético independiente del porcentaje de masa magra (62 ± 2,7% vs. 61,2 ± 1,8% de gasto energético en reposo normal vs. bajo; p 0,8). Conclusiones. El 59% de la población estudiada presentó obesidad. No se encontraron diferencias significativas en complicaciones metabólicas entre pacientes obesos y normopeso. Se observó menor gasto energético independiente del porcentaje de masa magra y similar ingesta energética.

Introduction. Craniopharyngiomas are histologically benign malformations located between the pituitary and hypothalamus that may affect key hormone secretion for endocrine regulation and satiety modulation. Although this is a relatively benign disease, the combination of severe hypothalamic obesity and associated comorbidities results in a reduced quality of life. Objective. To assess the nutritional status of patients after craniopharyngioma surgery. population and Methods. Patients younger than 21 years old at the time of the study who required craniopharyngioma surgery at Hospital de Pediatria Garrahan and who signed an informed consent. Anthropometric characteristics, body composition by impedance analysis, energy expenditure by indirect calorimetry and energy intake were assessed. Insulin resistance and dyslipemia were estimated. Results. A total of 39 patients were included; 41% had a normal weight and 59% were obese. Overall, 68% of patients had a central fat distribution; 40% had insulin resistance; and 32%, dyslipemia. No significant differences were observed in terms of insulin resistance, dyslipemia, energy expenditure at rest, or energy intake between normal weight and obese patients. Among obese patients, 77% had a low energy expenditure, regardless of their percentage of lean body mass (62 ± 2.7% versus 61.2 ± 1.8% of normal versus low energy expenditure at rest; p = 0.8). Conclusions. A total of 59% of the studied population was obese. No significant differences were observedinterms ofmetabolic complications between normal weight and obese patients. A lower energy expenditure was observed, regardless of the lean body mass percentage and a similar energy intake.

Nutritional assessment of a population with a history of childhood craniopharyngioma seen at Hospital "Prof. Dr. Juan P. Garrahan". / Evaluación nutricional de la población con antecedente de craneofaringioma infantil en el Hospital "Prof. Dr. Juan P. Garrahan".

INTRODUCTION: Craniopharyngiomas are histologically benign malformations located between the pituitary and hypothalamus that may affect key hormone secretion for endocrine regulation and satiety modulation. Although this is a relatively benign disease, the combination of severe hypothalamic obesity and associated comorbidities results in a reduced quality of life. OBJECTIVE: To assess the nutritional status of patients after craniopharyngioma surgery. POPULATION AND METHODS: Patients younger than 21 years old at the time of the study who required craniopharyngioma surgery at Hospital de Pediatr.a Garrahan and who signed an informed consent. Anthropometric characteristics, body composition by impedance analysis, energy expenditure by indirect calorimetry and energy intake were assessed. Insulin resistance and dyslipemia were estimated. RESULTS: A total of 39 patients were included; 41% had a normal weight and 59% were obese. Overall, 68% of patients had a central fat distribution; 40% had insulin resistance; and 32%, dyslipemia. No significant differences were observed in terms of insulin resistance, dyslipemia, energy expenditure at rest, or energy intake between normal weight and obese patients. Among obese patients, 77% had a low energy expenditure, regardless of their percentage of lean body mass (62 Å} 2.7% versus 61.2 Å} 1.8% of normal versus low energy expenditure at rest; p = 0.8). CONCLUSIONS: A total of 59% of the studied population was obese. No significant differences were observed in terms of metabolic complications between normal weight and obese patients. A lower energy expenditure was observed, regardless of the lean body mass percentage and a similar energy intake.

Introducción. los craneofaringiomas son malformaciones histológicamente benignas entre el hipotálamo y la hipófisis que pueden afectar la secreción hormonal clave en la regulación endócrina y modulación de la saciedad. Si bien se trata de una enfermedad relativamente benigna, la combinación de obesidad grave de origen hipotalámico y las comorbilidades asociadas a ella disminuyen la calidad de vida. Objetivo. Evaluar el estado nutricional de pacientes operados de craneofaringioma infantil. Población y métodos. Pacientes menores de 21 años al momento del estudio que requirieron cirugía por craneofaringioma en el Hospital de Pediatría Garrahan y que firmaron el consentimiento informado. Se realizó la evaluación antropométrica, composición corporal con impedanciometría, gasto energético con calorimetría indirecta e ingesta energética. Se determinó la resistencia a la insulina y la dislipidemia. Resultados. Se incluyeron 39 pacientes; 41%, normopeso y 59%, obesos. El 68% de los pacientes presentó distribución grasa central; 40%, resistencia a la insulina; y 32%, dislipidemia. No se encontraron diferencias significativas en la presencia de resistencia a la insulina, dislipidemia, gasto energético en reposo ni en la ingesta entre obesos vs. normopeso. El 77% de los pacientes obesos presentó bajo gasto energético independiente del porcentaje de masa magra (62 ± 2,7% vs. 61,2 ± 1,8% de gasto energético en reposo normal vs. bajo; p 0,8). Conclusiones. El 59% de la población estudiada presentó obesidad. No se encontraron diferencias significativas en complicaciones metabólicas entre pacientes obesos y normopeso. Se observó menor gasto energético independiente del porcentaje de masa magra y similar ingesta energética.

Waist-to-height ratio as a marker of low-grade inflammation in obese children and adolescents.

BACKGROUND: The epidemic of childhood obesity is associated with early atherosclerosis. Several reports have related this event to low-grade inflammation described in obesity. CRP and IL6 are markers that correlate with adiposity. The waist-to-height ratio (WtHR) is an anthropometric marker associated with insulin resistance and inflammation. The objective of this study was to assess the correlation between WtHR, metabolic complications and pro-inflammatory factors in obese children and adolescents. METHODS: Weight, height, waist circumference, glycemia, insulin, CRP, TNF-α and IL-6 were measured in the baseline sample in 280 patients 6-19 years of age with overweight or obesity (OW/OB) and 112 normal-weight controls. Logistic regression was performed using WtHR as an independent variable. p>0.05 STATA11. RESULTS: Mean WtHR was 0.6±0.06 in OW/OB and 0.43±0.02 in controls (p<0.01). WtHR was increased in 93% of the OW/OB vs. 2% of the controls. In the OW/OB inflammatory markers were significantly increased (p<0.01) compared to the controls (CRP 2.2 vs. 0.8; Il-6 2.9 vs. 2.1; and TNF-α 6.2 vs. 5.5). In the WtHR>0.5, insulin resistence and inflammatory markers were significantly increased (p<0.01) compared to the WtHR<0.5 (HOMA 3.4 vs. 1.4; CRP 2.3 vs. 0.6; Il-6 2.9 vs. 2.1; and TNF-α 6.4 vs. 5.55). In logistic regression, a significant independent association was found between WtHR with CRP (OR1.47), IL6 (OR1.60) and TNF-α (OR1.79). CONCLUSIONS: Obese children and adolescents have high inflammatory markers that may increase cardiovascular risk. WtHR is associated with low-grade inflammation and may be considered a relevant anthropometric marker in the clinical practice.

Comparison of energy expenditure, body composition, metabolic disorders, and energy intake between obese children with a history of craniopharyngioma and children with multifactorial obesity.

UNLABELLED: Craniopharyngioma is a histologically benign brain malformation with a fundamental role in satiety modulation, causing obesity in up to 52% of patients. AIM: To evaluate cardiovascular risk factors, body composition, resting energy expenditure (REE), and energy intake in craniopharyngioma patients and to compare the data with those from children with multifactorial obesity. POPULATION: All obese children and adolescents who underwent craniopharyngioma resection and a control group of children with multifactorial obesity in follow-up between May 2012 and April 2013. MATERIALS AND METHODS: Anthropometric measurements, bioelectrical impedance, indirect calorimetry, energy intake, homeostatic model assessment insulin resistance (HOMA-IR), and dyslipidemia were evaluated. RESULTS: Twenty-three patients with craniopharyngioma and 43 controls were included. Children with craniopharyngioma-related obesity had a lower fat-free mass percentage (62.4 vs. 67.5; p=0.01) and a higher fat mass percentage (37.5 vs. 32.5; p=0.01) compared to those with multifactorial obesity. A positive association was found between %REE and %fat-free mass in subjects with multifactorial obesity (68±1% in normal REE vs. 62.6±1% in low REE; p=0.04), but not in craniopharyngioma patients (62±2.7 in normal REE vs. 61.2±1.8% in low REE; p=0.8). No differences were found in metabolic involvement or energy intake. CONCLUSIONS: REE was lower in craniopharyngioma patients compared to children with multifactorial obesity regardless of the amount of fat-free mass, suggesting that other factors may be responsible for the lower REE.

[Obstructive sleep apneas in symptomatic obese children: polisomnographic confirmation and its association with disturbances in carbohydrate metabolism]. / Síndrome de apnea obstructiva del sueño en niños obesos sintomáticos: confirmación polisomnográfica y su asociación con trastornos del metabolismo hidrocarbonado.

INTRODUCTION: It has been shown that obesity is a risk factor for Obstructive Sleep Apneas (OSA) and that it could be related to insulin resistance (IR). OBJECTIVE: To establish the frequency of OSA in obese children and adolescents with suggestive symptoms of sleep disordered breathing (SDB) by polisomnografic study (PSG) and to clinically characterize the groups with and without OSA, and their association with IR. PATIENTS, MATERIAL AND METHODS: Descriptive, retrospective, cross-sectional study in patients with obesity and symptoms of SDB examined in the Hospital Nacional de Pediatría "Prof. Dr. Juan P. Garrahan" between october/2002 and july/2008 to whom PGS had been done. Anthropometric and oral glucose tolerance test data were obtained and indices of insulin resistance derived from the homeostatic model were calculated. We assessed the presence of OSA defined as apnea-hypopnea Index > or = 1 Student's and Chi Square Tests were used, establishing a level of significance of 0.05. RESULTS: A total of 58 children were studied (59%M), average age 8.8 +/- 3.5 and Score Z-IMC 2.8 +/- 0.7. In 55.2% of cases, OSA was confirmed, independently of the degree of obesity. 56.9% presented IR. The patients were divided in groups according to the presence or not of OSA. There were no significant differences in age nor in Score Z-IMC. The patients with OSA presented greater frequency of tonsil hypertrophy (p= 0.01, OR= 6.86) and IR (p= 0.01, OR= 4,44) and less insulin sensitivity (p= 0.04). CONCLUSIONS: Both IR and the presence of tonsil hypertrophy were predictors of OSA. This population seems to be heterogeneous. We underline the importance to look for SDB related signs and symptoms in patients with obesity of any degree.

Síndrome de apnea obstructiva del sueño en niños obesos sintomáticos: confirmación polisomnográfica y su asociación con trastornos del metabolismo hidrocarbonado / Obstructive sleep apneas in symptomatic obese children: polisomnographic confirmation and its association with disturbances in carbohydrate metabolism

La obesidad es un factor de riesgo para el síndrome de apnea obstructiva del sueño (SAOS) que estaría relacionado a insulinorresistencia(IR).Objetivo. Establecer la frecuencia de SAOS, mediante polisomnografía (PSG) en niños y adolescentes obesos con síntomas sugestivos de trastornos respiratorios del sueño y caracterizar clínicamente los grupos con SAOS y sin él, y su asociación con IR.Población, material y métodos. Estudio descriptivo, retrospectivo, transversal de pacientes obesos atendidos en el Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan, entre octubre/2002-julio/2008, con PSG realizada porpresentar síntomas asociados a trastornos respiratorios del sueño (TRS).Se recabaron datos antropométricos, se realizó prueba de tolerancia oral a la glucosa y se calcularon índices de insulinorresistencia (modelo homeostático).Se evaluó la presencia de SAOS definida por Indice de apnea-hipopnea obstructiva/hora ≥ 1.Se aplicaron las pruebas de Student y c2. Se trabajó con un nivel de significación de 0,05.Resultados. Estudiamos 58 niños (60 por ciento V) edad (media) 8,8 años por ciento 3,5 y puntaje Z-IMC 2,8 más menos 0,7.En el 55,2 por ciento se confirmó SAOS, independientemente del grado de obesidad. En el 56,9 por ciento se hallóIR. Agrupamos los pacientes de acuerdo a la presencia o no de SAOS; no encontramos diferencias significativas en edad ni en puntaje ZIMC. Los pacientes con SAOS presentaron mayor frecuencia de hipertrofia amigdalina (p= 0,01;OR= 6,86), IR (p= 0,01; OR= 4,44) y menor sensibilidad a la insulina (p= 0,04).Conclusiones. Tanto la IR como la presencia de hipertrofia amigdalina fueron predictoras de SAOS. La población con SAOS parece ser heterogénea.Remarcamos la importancia de la búsqueda de signos y síntomas relacionados con TRS en los pacientes con obesidad de cualquier grado.(AU)

Síndrome de apnea obstructiva del sueño en niños obesos sintomáticos: confirmación polisomnográfica y su asociación con trastornos del metabolismo hidrocarbonado / Obstructive sleep apneas in symptomatic obese children: polisomnographic confirmation and its association with disturbances in carbohydrate metabolism

La obesidad es un factor de riesgo para el síndrome de apnea obstructiva del sueño (SAOS) que estaría relacionado a insulinorresistencia(IR).Objetivo. Establecer la frecuencia de SAOS, mediante polisomnografía (PSG) en niños y adolescentes obesos con síntomas sugestivos de trastornos respiratorios del sueño y caracterizar clínicamente los grupos con SAOS y sin él, y su asociación con IR.Población, material y métodos. Estudio descriptivo, retrospectivo, transversal de pacientes obesos atendidos en el Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan, entre octubre/2002-julio/2008, con PSG realizada porpresentar síntomas asociados a trastornos respiratorios del sueño (TRS).Se recabaron datos antropométricos, se realizó prueba de tolerancia oral a la glucosa y se calcularon índices de insulinorresistencia (modelo homeostático).Se evaluó la presencia de SAOS definida por Índice de apnea-hipopnea obstructiva/hora ≥ 1.Se aplicaron las pruebas de Student y c2. Se trabajó con un nivel de significación de 0,05.Resultados. Estudiamos 58 niños (60 por ciento V) edad (media) 8,8 años por ciento 3,5 y puntaje Z-IMC 2,8 más menos 0,7.En el 55,2 por ciento se confirmó SAOS, independientemente del grado de obesidad. En el 56,9 por ciento se hallóIR. Agrupamos los pacientes de acuerdo a la presencia o no de SAOS; no encontramos diferencias significativas en edad ni en puntaje ZIMC. Los pacientes con SAOS presentaron mayor frecuencia de hipertrofia amigdalina (p= 0,01;OR= 6,86), IR (p= 0,01; OR= 4,44) y menor sensibilidad a la insulina (p= 0,04).Conclusiones. Tanto la IR como la presencia de hipertrofia amigdalina fueron predictoras de SAOS. La población con SAOS parece ser heterogénea.Remarcamos la importancia de la búsqueda de signos y síntomas relacionados con TRS en los pacientes con obesidad de cualquier grado.