Objective The objective of this study was to analyze whether some auxological characteristics or a single basal gonadotropin measurement will be sufficient to distinguish the prepubertal from ...pubertal status. Methods Auxologycal characteristics were recorded and serum LH and FSH were measured by immunochemiluminescence assays before and after GnRH stimulation test in a sample of 241 Caucasian girls with breast budding between 6- and 8-years old. Peak LH levels higher than 5 IU/L were considered a pubertal response. Area under the curve, cut-off points, sensitivity, and specificity for auxologycal variables and basal gonadotropins levels were determined by receiver operating curves. Results There were no significant differences in age at onset, weight, height, BMI and height velocity between both groups. Bone age was significantly higher in pubertal girls (P < 0.05), although with limited discriminatory capacity. The sensitivity and specificity for the basal LH levels were 89 and 82%, respectively, for a cut off point of 0.1 IU/L. All girls in the pubertal group had a basal LH higher than 1.0 IU/L (positive predictive value of 100%). There was a wide overlap of basal FSH and LH/FSH ratio between prepubertal and pubertal girls. Conclusions Auxologycal characteristics should not be used only in the differential diagnosis between prepubertal from pubertal status in 6- to 8-year-old girls. We found a high specificity of a single basal LH sample and it would be useful for establishing the diagnosis of puberty in this age group, reducing the need for GnRH stimulation testing.
INTRODUCTIONThe characteristics of catch-up growth in very low birth weight infants (VLBW) have not been clearly established. The aim of this study was to analyse the height catch-up and some ...associated factors in a cohort of VLBW (birth weight<1,500g) from birth to age 14 years. METHODSWe obtained retrospective data on weight and height at birth and ages one, 2, 3, 4, 6, 8, 10, 12 and 14 years in a cohort of 170 VLBW. We compared these anthropometric values with those documented in a control group. RESULTSThirty-seven children (21.8%) were born with an extremely low birth weight and 32 (18.8%) extremely preterm. At 10 years of age, 7% of VLBW (1,000-1,500g) and 35% of extremely low birth weight (<1,500g) children had short stature (P=.001). Almost all VLBW children who had a normal height at ages 2, 4 and 10 years had exhibited adequate weight catch-up in previous evaluations. We found that extremely low birth weight and extremely preterm were independent predictors for inadequate height catch-up. CONCLUSIONThe growth pattern of VLBW children has specific characteristics. The catch-up in weight seems to be an important factor for catch-up in height, and therefore a thorough nutritional follow-up is recommended in these children.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
to analyze the prevalence of vitamin D deficiency throughout a natural year in a pediatric population with normal nutrition status.
cross sectional clinical and analytical study (calcium, phosphorus, ...alkaline phosphatase, calcidiol and parathyroid hormone) in 413 caucasian individuals (aged 3.1 to 15.4 years): 227 school children (96 males and 131 females) and 186 adolescents (94 males and 92 females), all of them in a normal nutrition status, during the year 2014. Vitamin D deficiency was defined according to the United States Endocrine Society guidelines.
calcidiol levels were lower during spring (25.96 ± 6.64 ng/ml) and reached its maximum level in summer (35.33 ± 7.51 ng/ml); PTH levels were lower in summer (27.13 ± 7.89 pg/ml) and reached maximum level in autumn (34.73 ± 15.38 pg/ml). Vitamin D deficiency prevalence was 14.3% in summer and 75.3% in spring. PTH levels were compatible with secondary hyperparathyroidism in 8 individuals (1.9%). There was a negative correlation between calcidol and PTH levels (p < 0.01). There was not a correlation between body mass index (BMI) and calcidiol.
the pediatric population in normal nutrition status shows a high prevalence of vitamin D deficiency during the months of autumn and winter and, especially, in spring; the addition of vitamin supplements and/ or an increase in the ingestion of their natural dietary sources should be considered.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Las características del crecimiento recuperador en niños con muy bajo peso (MBP) al nacer no se han establecido con claridad. El objetivo del estudio fue analizar el crecimiento recuperador de talla ...y factores asociados en una cohorte de niños con MBP al nacer (<1.500g) desde el nacimiento hasta los 14 años de edad.
Se recogieron datos retrospectivos de peso y talla a uno, 2, 3, 4, 6, 8, 10, 12 y 14 años de edad en una cohorte de 170 recién nacidos con MBP. Se compararon estos datos antropométricos con los registrados en un grupo de control.
Treinta y siete niños (21,8%) nacieron con extremado bajo peso y 32 (18,8%) fueron pretérmino extremo. A los 10 años de edad, el 7% de los niños con MBP (1.000-1.500g) y el 35% de los niños con extremado bajo peso (<1.500g) tenían talla baja (p=0,001). Casi todos los niños con MBP que tenían una talla normal a los 2, 4 y 10 años de edad habían alcanzado un peso adecuado en evaluaciones previas. El extremado bajo peso al nacer y el nacimiento pretérmino extremo resultaron ser predictores independientes de un crecimiento recuperador de talla inadecuado.
El patrón de crecimiento de niños con MBP al nacer tiene unas características específicas. El crecimiento recuperador de peso parece ser un factor importante para el crecimiento recuperador de talla, por lo que se recomienda un seguimiento nutricional cuidadoso en estos niños.
The characteristics of catch-up growth in very low birth weight infants (VLBW) have not been clearly established. The aim of this study was to analyse the height catch-up and some associated factors in a cohort of VLBW (birth weight<1,500g) from birth to age 14 years.
We obtained retrospective data on weight and height at birth and ages one, 2, 3, 4, 6, 8, 10, 12 and 14 years in a cohort of 170 VLBW. We compared these anthropometric values with those documented in a control group.
Thirty-seven children (21.8%) were born with an extremely low birth weight and 32 (18.8%) extremely preterm. At 10 years of age, 7% of VLBW (1,000-1,500g) and 35% of extremely low birth weight (<1,500g) children had short stature (P=.001). Almost all VLBW children who had a normal height at ages 2, 4 and 10 years had exhibited adequate weight catch-up in previous evaluations. We found that extremely low birth weight and extremely preterm were independent predictors for inadequate height catch-up.
The growth pattern of VLBW children has specific characteristics. The catch-up in weight seems to be an important factor for catch-up in height, and therefore a thorough nutritional follow-up is recommended in these children.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Algunas personas, también las menores de edad, tienen una identidad de género que no se corresponde con el sexo asignado al nacer. Se les conoce como personas trans*, que es el término paraguas que ...engloba transgénero, transexual y otras identidades no conformes con el género asignado. Las unidades de asistencia sanitaria a menores trans* requieren un trabajo multidisciplinario, realizado por personal experto en identidad de género, que permita, cuando así lo soliciten, intervenciones para el menor y su entorno sociofamiliar, de forma individualizada y flexible durante el camino de afirmación de género. Este modelo de servicio también incluye tratamientos hormonales adaptados en la medida de lo posible a las necesidades del individuo, más allá de los objetivos dicotómicos de un modelo binario tradicional. Esta guía aborda los aspectos generales de la atención profesional de menores trans* y presenta el protocolo actual basado en evidencia de tratamientos hormonales para adolescentes trans* y no binarios. Además, detalla aspectos clave relacionados con los cambios corporales esperados y sus posibles efectos secundarios, así como el asesoramiento previo sobre preservación de la fertilidad.
Some people, including minors, have a gender identity that does not correspond to the sex assigned at birth. They are known as trans* people, which is an umbrella term that encompasses transgender, transsexual, and other identities not conforming to the assigned gender. Healthcare units for trans* minors require multidisciplinary working, undertaken by personnel expert in gender identity, enabling, when requested, interventions for the minor and their social–familial environment, in an individualized and flexible way during the gender affirmation path. This service model also includes hormonal treatments tailored as much as possible to the individual's needs, beyond the dichotomic goals of a traditional binary model. This guide addresses the general aspects of professional care of trans* minors and presents the current evidence-based protocol of hormonal treatments for trans* and non-binary adolescents. In addition, it details key aspects related to expected body changes and their possible side effects, as well as prior counselling about fertility preservation.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The characteristics of catch-up growth in very low birth weight infants (VLBW) have not been clearly established. The aim of this study was to analyse the height catch-up and some associated factors ...in a cohort of VLBW birth weight <1,500 g from birth to age 14 years.
We obtained retrospective data on weight and height at birth and ages one, 2, 3, 4, 6, 8, 10, 12 and 14 years in a cohort of 170 VLBW. We compared these anthropometric values with those documented in a control group.
Thirty-seven children (21.8%) were born with an extremely low birth weight and 32 (18.8%) extremely preterm. At 10 years of age, 7% of VLBW (1,000–1,500 g) and 35% of extremely low birth weight <1,500 g children had short stature P = 0.001). Almost all VLBW children who had a normal height at ages 2, 4 and 10 years had exhibited adequate weight catch-up in previous evaluations. We found that extremely low birth weight and extremely preterm were independent predictors for inadequate height catch-up.
The growth pattern of VLBW children has specific characteristics. The catch-up in weight seems to be an important factor for catch-up in height, and therefore a thorough nutritional follow-up is recommended in these children.
Las características del crecimiento recuperador en niños con muy bajo peso (MBP) al nacer no se han establecido con claridad. El objetivo del estudio fue analizar el crecimiento recuperador de talla y factores asociados en una cohorte de niños con MBP al nacer (< 1.500 g) desde el nacimiento hasta los 14 años de edad.
Se recogieron datos retrospectivos de peso y talla a uno, 2, 3, 4, 6, 8, 10, 12 y 14 años de edad en una cohorte de 170 recién nacidos con MBP. Se compararon estos datos antropométricos con los registrados en un grupo de control.
Treinta y siete niños (21.8%) nacieron con extremado bajo peso y 32 (18.8%) fueron pretérmino extremo. A los 10 años de edad, el 7% de los niños con MBP (1.000-1.500 g) y el 35% de los niños con extremado bajo peso < 1.500 g tenían talla baja p = 0,001. Casi todos los niños con MBP que tenían una talla normal a los 2, 4 y 10 años de edad habían alcanzado un peso adecuado en evaluaciones previas. El extremado bajo peso al nacer y el nacimiento pretérmino extremo resultaron ser predictores independientes de un crecimiento recuperador de talla inadecuado.
El patrón de crecimiento de niños con MBP al nacer tiene unas características específicas. El crecimiento recuperador de peso parece ser un factor importante para el crecimiento recuperador de talla, por lo que se recomienda un seguimiento nutricional cuidadoso en estos niños.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The aim of this study is to describe the effects of a prolonged dietary-behavioral-physical activity intervention (24 months) on body composition in a group of adolescents with obesity.
Longitudinal ...study in 196 individuals with obesity (86 boys and 110 girls) aged 10.1-14.9 years that completed a prolonged combined intervention (24 months). Values for weight, height, skinfold thickness, waist circumference, BMI, body fat, fat mass index (FMI) and fat-free mass index (FFMI) were registered or calculated. A good response to treatment was reported when a BMI z-score reduction of greater than or equal to 0.5 units of the initial value occurred after 24 month of follow up.
A good response after 24 months of follow-up reached 58.2% (n = 114). In boys with obesity and BMI status improvement, weight z-score, BMI z-score, body fat, and FMI significantly decreased (p < 0.05). In girls with obesity and BMI status improvement, weight z-score, BMI z-score, waist circumference, waist z-score, body fat and FMI significantly decreased (p < 0.05). In both sexes the height and FFMI increased significantly (p < 0.05). The multiple logistic regression analysis showed that girls and younger age were associated with BMI status improvement; concurrently, the place of residence (urban or rural) and degree of obesity were not associated with BMI status improvement.
The application of long-term combined strategies in the treatment of childhood obesity seems to be effective. As BMI decreases, a reduction in fat mass is also detected, with evident sexual dimorphism, in the absence of changes in fat-free mass and, consequently, in longitudinal growing.
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DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK, VSZLJ
Resumen Objetivo Analizar la prevalencia de hipovitaminosis D y factores asociados en escolares y adolescentes residentes en una región del norte peninsular. Diseño Estudio descriptivo transversal ...(muestreo de conveniencia). Emplazamiento Atención primaria. Participantes Fueron incluidos 602 sujetos sanos de raza caucásica con edades comprendidas entre 3,1 y 15,4 años. Mediciones principales Se ha calculado la prevalencia de hipovitaminosis D (variable dependiente) según los criterios de la US Endocrine Society : deficiencia (calcidiol < 20 ng/ml), insuficiencia (calcidiol: 20-29 ng/ml) y suficiencia (calcidiol ≥ 30 ng/ml). Se han registrado como variables independientes: sexo, edad, índice de masa corporal, lugar de residencia y estación del año, analizándose su asociación con la hipovitaminosis D mediante regresión logística múltiple. Resultados La prevalencia de hipovitaminosis D era del 60,4% (insuficiencia: 44,6%; deficiencia: 15,8%). Las variables asociadas con la hipovitaminosis D eran el sexo femenino (OR: 1,6; IC 95%: 1,1-2,3), la edad puberal (OR: 1,8; IC 95%: 1,2-2,6), las estaciones de otoño (OR: 9,5; IC 95%: 4,8-18,7), invierno (OR: 8,8; IC 95%: 4,5-17,5) y primavera (OR: 13,2; IC 95%: 6,4-27,5), el entorno urbano (OR:1,6; IC 95%: 1,1-2,2) y la obesidad severa (OR: 4,4; IC 95%: 1,9-10,3). Conclusiones En la población infantojuvenil existe una alta prevalencia de hipovitaminosis D, y los factores asociados son el sexo femenino, la edad puberal, el otoño, el invierno y la primavera, la obesidad severa y el entorno urbano. Habría que considerar la necesidad de administrar suplementos vitamínicos o ingerir mayores cantidades de sus fuentes dietéticas naturales y/o alimentos enriquecidos durante los meses de otoño, invierno y primavera.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
The objective of this study was to analyze the prevalence of hypovitaminosis D in children with severe obesity. We hypothesized that severe obesity could modify the seasonal variations in 25(OH)D and ...PTH serum levels throughout the year. A cross-sectional clinical and blood testing (calcium, phosphorus, 25(OH)D, and PTH) was carried out in 282 patients with severe obesity, aged 7.2–15.2 years. A control group was recruited (348 healthy children, aged 7.1–14.9 years). The criteria of the US Endocrine Society were used for the definition of hypovitaminosis D. Vitamin D deficiency and hyperparathyroidism were more frequent (
p
< 0.05) in the obesity group (44.5 vs. 11.5% and 22.4 vs. 3.9%, respectively). There were seasonal variations in 25(OH)D levels in the obesity group, but they were lower (
p
< 0.05) with respect to the control group. In contrast, PTH levels were higher (
p
< 0.05) in the obesity group with respect to the control group, but there were no significant seasonal variations in PTH levels.
Conclusion
: Suboptimal vitamin D status and high levels of PTH are a common feature in pediatric population with severe obesity. In these patients, the seasonal variations in 25(OH)D were not modified, and PTH levels remained increased throughout the year, but without any seasonal variations.
What is Known:
• Obesity has been associated with lower 25(OH)D and higher PTH levels.
• Relation among vitamin D and PTH through a natural year in children with obesity is partially known.
What is New:
• Seasonal variations in 25(OH)D are maintained in children with severe obesity, but PTH levels remained increased throughout the year, without seasonal variations.
• -PTH levels in obesity are independent of vitamin D status and do not appear to represent secondary hyperparathyroidism.
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DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, VSZLJ, ZAGLJ
Resumen El objetivo de este documento es revisar las recomendaciones actuales en el manejo del hijo de madre con patología autoinmune tiroidea. En este 2017 se ha publicado la guía de la Asociación ...Americana de Tiroides para el diagnóstico y manejo de la enfermedad tiroidea durante el embarazo y el posparto. En dicha guía se establecen 97 recomendaciones y se propone un algoritmo de diagnóstico y tratamiento del hipotiroidismo gestacional. También en este último año se ha publicado una amplia revisión sobre el abordaje fetal y neonatal del hijo de madre con enfermedad de Graves. Se insiste en la trascendencia de la determinación de anticuerpos maternos frente al receptor de TSH en la segunda mitad del embarazo para estratificar adecuadamente el riesgo en el neonato.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
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