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OBJECTIVES: To examine trends over time in diet and size of very preterm infants, and associations of diet with size at hospital discharge/transfer. METHODS: The authors studied 4062 surviving very preterm infants born < 32 weeks' gestational age and < 1500 g between January 2012 and December 2020 from 12 Brazilian Neonatal Intensive Care Units. Diet type at discharge/transfer was classified as exclusive human milk, exclusive formula, or mixed. Outcomes were weight and head circumference at hospital discharge and the change in each from birth to discharge. The authors used linear regression to estimate adjusted associations of diet type with infant size, overall, and stratified by fetal growth category (small vs. appropriate for gestational age). The authors also examined trends in diet and infant size at discharge over the years. RESULTS: Infants' mean gestational age at birth was 29.3 weeks, and the mean birth weight was 1136 g. Diet at discharge/transfer was exclusive human milk for 22 %, mixed for 62 %, and exclusive formula for 16 %. Infant size in weight and head circumference were substantially below the growth chart reference for all diets. Infants fed human milk and mixed diets were lighter and had smaller heads at discharge/transfer than infants fed formula only (weight z: -2.0, -1.8, and -1.5; head z: -1.3, -1.2 and -1.1 for exclusive human milk, mixed and exclusive formula respectively). CONCLUSION: Results suggest high human milk use but gaps in nutrient delivery among hospitalized Brazilian very preterm infants, with little evidence of improvement over time.

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Introducción. Con el uso de la nutrición parenteral agresiva en recién nacidos de muy bajo peso, se detectaron alteraciones del metabolismo fosfocálcico. En 2016 se implementó una estrategia de prevención a través del monitoreo fosfocálcico y su suplementación temprana. El objetivo fue estudiar si esta estrategia disminuye la prevalencia de osteopenia e identificar factores de riesgo asociados. Población y métodos. Estudio cuasiexperimental que comparó la prevalencia de osteopenia entre dos grupos: uno después de implementar la estrategia de monitoreo y suplementación fosfocálcica (01/01/2017-31/12/2019), y otro previo a dicha intervención (01/01/2013-31/12/2015). Resultados. Se incluyeron 226 pacientes: 133 pertenecen al período preintervención y 93 al posintervención. La prevalencia de osteopenia global fue del 26,1 % (IC95% 20,5-32,3) y disminuyó del 29,3 % (IC95% 21,7-37,8) en el período preintervención al 21,5 % (IC95% 13,6-31,2) en el posintervención, sin significancia estadística (p = 0,19). En el análisis multivariado, el puntaje NEOCOSUR de riesgo de muerte al nacer, recibir corticoides posnatales y el período de intervención se asociaron de manera independiente a osteopenia. Haber nacido luego de la intervención disminuyó un 71 % la probabilidad de presentar fosfatasa alcalina >500 UI/L independientemente de las restantes variables incluidas en el modelo. Conclusión. La monitorización y suplementación fosfocálcica precoz constituye un factor protector para el desarrollo de osteopenia en recién nacidos con muy bajo peso al nacer.

Introduction. With the use of aggressive parenteral nutrition in very low birth weight infants, alterations in calcium and phosphate metabolism were detected. In 2016, a prevention strategy was implemented through calcium phosphate monitoring and early supplementation. Our objective was to study whether this strategy reduces the prevalence of osteopenia and to identify associated risk factors. Population and methods. Quasi-experiment comparing the prevalence of osteopenia between two groups: one after implementing the calcium phosphate monitoring and supplementation strategy (01/01/2017­12/31/2019) and another prior to such intervention (01/01/2013­12/31/2015). Results. A total of 226 patients were included: 133 in the pre-intervention period and 93 in the post-intervention period. The overall prevalence of osteopenia was 26.1% (95% CI: 20.5­32.3) and it was reduced from 29.3% (95% CI: 21.7­37.8) in the pre-intervention period to 21.5% (95% CI: 13.6­31.2) in the post-intervention period, with no statistical significance (p = 0.19). In the multivariate analysis, the NEOCOSUR score for risk of death at birth, use of postnatal corticosteroids, and the intervention period were independently associated with osteopenia. Being born after the intervention reduced the probability of alkaline phosphatase > 500 IU/L by 71%, regardless of the other variables included in the model. Conclusion. Calcium phosphate monitoring and early supplementation is a protective factor against the development of osteopenia in very low birth weight infants.

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Introduction. With the use of aggressive parenteral nutrition in very low birth weight infants, alterations in calcium and phosphate metabolism were detected. In 2016, a prevention strategy was implemented through calcium phosphate monitoring and early supplementation. Our objective was to study whether this strategy reduces the prevalence of osteopenia and to identify associated risk factors. Population and methods. Quasi-experiment comparing the prevalence of osteopenia between two groups: one after implementing the calcium phosphate monitoring and supplementation strategy (01/01/2017-12/31/2019) and another prior to such intervention (01/01/2013-12/31/2015). Results. A total of 226 patients were included: 133 in the pre-intervention period and 93 in the post-intervention period. The overall prevalence of osteopenia was 26.1% (95% CI: 20.5-32.3) and it was reduced from 29.3% (95% CI: 21.7-37.8) in the pre-intervention period to 21.5% (95% CI: 13.6-31.2) in the post-intervention period, with no statistical significance (p = 0.19). In the multivariate analysis, the NEOCOSUR score for risk of death at birth, use of postnatal corticosteroids, and the intervention period were independently associated with osteopenia. Being born after the intervention reduced the probability of alkaline phosphatase > 500 IU/L by 71%, regardless of the other variables included in the model. Conclusion. Calcium phosphate monitoring and early supplementation is a protective factor against the development of osteopenia in very low birth weight infants.

Introducción. Con el uso de la nutrición parenteral agresiva en recién nacidos de muy bajo peso, se detectaron alteraciones del metabolismo fosfocálcico. En 2016 se implementó una estrategia de prevención a través del monitoreo fosfocálcico y su suplementación temprana. El objetivo fue estudiar si esta estrategia disminuye la prevalencia de osteopenia e identificar factores de riesgo asociados. Población y métodos. Estudio cuasiexperimental que comparó la prevalencia de osteopenia entre dos grupos: uno después de implementar la estrategia de monitoreo y suplementación fosfocálcica (01/01/2017-31/12/2019), y otro previo a dicha intervención (01/01/2013-31/12/2015). Resultados. Se incluyeron 226 pacientes: 133 pertenecen al período preintervención y 93 al posintervención. La prevalencia de osteopenia global fue del 26,1 % (IC95% 20,5-32,3) y disminuyó del 29,3 % (IC95% 21,7-37,8) en el período preintervención al 21,5 % (IC95% 13,6-31,2) en el posintervención, sin significancia estadística (p = 0,19). En el análisis multivariado, el puntaje NEOCOSUR de riesgo de muerte al nacer, recibir corticoides posnatales y el período de intervención se asociaron de manera independiente a osteopenia. Haber nacido luego de la intervención disminuyó un 71 % la probabilidad de presentar fosfatasa alcalina >500 UI/L independientemente de las restantes variables incluidas en el modelo. Conclusión. La monitorización y suplementación fosfocálcica precoz constituye un factor protector para el desarrollo de osteopenia en recién nacidos con muy bajo peso al nacer.

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O objetivo deste artigo foi analisar a associação entre os fatores sociodemográficos, as características maternas e neonatais e o tempo de introdução da alimentação complementar em recém-nascidos pré-termo e com baixo peso. Trata-se de um estudo de coorte prospectivo feito com 79 recém-nascidos pré-termo com peso menor ou igual a 1.800g. Os dados foram coletados no momento da alta hospitalar e ao 6º, 9º e 12º mês de idade gestacional corrigida (IGC), com auxílio de um questionário estruturado para analisar o tempo de introdução da alimentação complementar e texturas dos alimentos introduzidos. Além disso, para avaliar o risco de atraso de desenvolvimento, utilizou-se o Survey of Well-being of Young Children (SWYC-BR). Para análise das variáveis, aplicou-se regressão de riscos proporcionais de Cox. A introdução da alimentação complementar foi observada nos recém-nascidos pré-termo, com a mediana de idade de introdução de alimentos líquidos (3,50; IQ: 2,50-5,00), seguido por sólidos (4,70; IQ: 3,20-5,20) e pastosos (5,00; IQ: 4,50-5.50). Ainda, verificou-se associação da idade gestacional (RR = 1.25; IC95%: 1,02-1,52) em todo o processo da introdução alimentar. Para os alimentos sólidos e pastosos, aqueles com o maior tempo de internação (RR = 1,03; IC95%: 1,10- 1,05) e em amamentação mista (RR = 2,97; IC95%: 1,24-7,09) adiaram mais o tempo para introduzir a alimentação complementar. Para alimentos líquidos, recém-nascidos pré-termo menos graves (Score for Neonatal Acute Physiology and Perinatal Extension - SNAPPE II [RR = 0,96; IC95%: 0,94-0,98]) e mães que estavam amamentando na alta hospitalar (RR = 11,49; IC95%: 1,57-84,10) postergaram a introdução alimentar. Diretrizes para melhor orientação de profissionais e pais e/ou responsáveis sobre o momento ideal de introdução alimentar se faz necessário.

This study aimed to analyze the association between sociodemographic factors, maternal and neonatal characteristics and the time taken to introduce complementary feeding in low birthweight and preterm newborns. This is a prospective cohort study of 79 preterm newborns weighing less than or equal to 1,800g. Data were collected at the time of hospital discharge and at the 6th, 9th ,and 12th months of corrected gestational age (CGA), using a structured questionnaire to analyze the time taken to introduce complementary feeding and the texture of the foods introduced. Furthermore, the Survey of Well-being of Young Children (SWYC-BR) was used to assess the risk of developmental delay. Cox proportional hazards regression was used to analyze the variables. The introduction of complementary feeding was assessed in preterm newborns based on the median age of introduction of liquid foods (3.50; IQR: 2.50-5.00), followed by solid (4.70; IQR: 3.20-5.20) and soft foods (5.00; IQR: 4.50-5.50). There was also an association with gestational age (RR = 1.25; 95%CI: 1.02-1.52) throughout the process of food introduction. For solid and soft foods, those with the longest length of stay (RR = 1.03; 95%CI: 1.10-1.05) and on mixed breastfeeding (RR = 2.97; 95%CI: 1.24-7.09) delayed the introduction of complementary feeding the longest. For liquid foods, less severe preterm newborns (Score for Neonatal Acute Physiology and Perinatal Extension - SNAPPE II [RR = 0.96; 95%CI: 0.94-0.98]) and mothers who were breastfeeding at hospital discharge (RR = 11.49; 95%CI: 1.57-84.10) delayed the introduction of complementary feeding. Guidelines are needed to better advise professionals and parents and/or guardians on the ideal time to introduce feeding.

El objetivo de este estudio fue analizar la asociación entre los factores sociodemográficos, características maternas y neonatales y el momento de introducción de la alimentación complementaria en recién nacidos pretérmino (recém-nascidos pré-termo) y de bajo peso. Se trata de un estudio de cohorte prospectivo realizado con 79 recém-nascidos pré-termo con un peso menor o igual a 1.800g. Los datos se recopilaron en el momento del alta hospitalaria y al 6º, 9º y 12º mes de edad gestacional corregida (EGC), con la ayuda de un cuestionario estructurado para analizar el momento de introducción de la alimentación complementaria y las texturas de los alimentos introducidos. Además, para evaluar el riesgo de retraso en el desarrollo, se utilizó la Survey of Well-being of Young Children (SWYC-BR). Para analizar las variables, se aplicó la regresión de riesgos proporcionales de Cox. La introducción de la alimentación complementaria se observó en los recém-nascidos pré-termo, con la mediana de edad de introducción de alimentos líquidos (3,50; IIC: 2,50-5,00), seguido de los sólidos (4,70; IIC: 3,20-5,20) y pastosos (5,00; IIC: 4,50-5,50). Además, se constató la asociación de la edad gestacional (RR = 1,25; IC95%: 1,02-1,52) durante todo el proceso de introducción alimentaria. En el caso de alimentos sólidos y pastosos, aquellos con mayor tiempo de hospitalización (RR = 1,03; IC95%: 1,10-1,05) y en lactancia mixta (RR = 2,97; IC95%: 1,24-7,09) retrasaron más la introducción de alimentación complementaria. En el caso de alimentos líquidos, los recém-nascidos pré-termo menos graves (Score for Neonatal Acute Physiology and Perinatal Extension - SNAPPE II [RR = 0,96; IC95%: 0,94-0,98]) y las madres que estaban amamantando al alta hospitalaria (RR = 11,49; IC95%: 1,57-84,10) pospusieron la introducción de alimentos. Se hacen necesarias pautas para una mejor orientación a profesionales y padres o tutores sobre el momento ideal para la introducción alimentaria.

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Introdução: O peso ao nascer tem grande influência sobre o desenvolvimento global da criança, que por sua vez sofre influência direta dos cuidados maternos. Objetivo: Identificar na literatura científica a percepção materna sobre o cuidado de recém-nascidos com baixo peso. Métodos: Trata-se de uma revisão sistemática de estudos qualitativos conduzida em conformidade com as diretrizes metodológicas do Instituto Joanna Briggs. A pesquisa foi realizada entre abril de 2021 e março de 2023 nas bases de dados PubMed, MedLine, BVS, Scielo, EMBASE e Web of Science, com os descritores: "percepção materna", "baixo peso ao nascer" e "cuidado da criança", em diferentes combinações. Incluíram-se estudos em português, inglês e espanhol, publicados entre 2013 e 2023, que tratassem do cuidado materno de recém-nascidos com baixo peso no contexto hospitalar ou domiciliar. Os resultados foram categorizados de acordo com a análise de conteúdo. Resultados: Foram identificados 1129 estudos, dos quais apenas 11 foram incluídos nesta revisão, nas seguintes categorias: sentimentos maternos, necessidades e desafios do cuidado, aleitamento materno, vínculo mãe-bebê e apoio social. Considerações finais: Mães de recém-nascidos com baixo peso experimentam insegurança e problemas gerais de adaptação que afetam os cuidados para suprimento das necessidades essenciais da criança. Apoio familiar e de profissionais de saúde podem reforçar a segurança materna e contribuir para o cuidado integral de recém-nascidos com baixo peso.

Introducción: El peso al nacer tiene una gran influencia en el desarrollo global del niño, el cual a su vez está directamente influido por los cuidados maternos. Objetivo: Identificar en la literatura científica la percepción de la madre sobre el cuidado del niño nacido con bajo peso. Métodos: Esta es una revisión sistemática de estudios cualitativos realizados de acuerdo con las pautas metodológicas del Instituto Joanna Briggs. La investigación fue realizada entre abril de 2021 y marzo de 2023 en las bases de datos PubMed, MedLine, BVS, Scielo, EMBASE y Web of Science, con los descriptores: "percepción materna", "bajo peso al nacer" y "cuidado del niño", en diferentes combinaciones. Se incluyeron estudios en portugués, inglés y español, publicados entre 2013 y 2023, que abordaran el cuidado materno de niños nacidos con bajo peso en el contexto hospitalario o domiciliario. Los resultados se clasificaron según el análisis de contenido. Resultados: Se identificaron 1129 estudios, de los cuales solo 11 fueron incluidos en esta revisión, en las siguientes categorías: sentimientos maternos, necesidades y desafíos de cuidado, lactancia materna, vínculo madre-hijo y apoyo social. Consideraciones finales: Las madres de niños nacidos con bajo peso experimentan inseguridad y problemas generales de adaptación que afectan los cuidados para satisfacer las necesidades esenciales del niño. El apoyo familiar y el apoyo de los profesionales de la salud pueden reforzar la seguridad materna y contribuir a la atención integral en salud de los niños nacidos con bajo peso.

Introduction: Birth weight has a great influence on the child's global development, which in turn is directly influenced by maternal care. Objective: To identify in the scientific literature the mother's perception about the care of children born with low birth weight. Methods: This is a systematic review of qualitative studies conducted in accordance with the methodological guidelines of the Joanna Briggs Institute. The research was carried out between April/2021 and March/2023 in the databases: PubMed, Medline, VHL, SciELO, EMBASE and Web of Science, with the descriptors: maternal perception, low birth weight and child care, in different combinations. Studies in Portuguese, English and Spanish, published between 2013 and 2023, that addressed the maternal care of children born with low birth weight in the hospital or home context were included. Results were categorized according to content analysis. Results: 1129 studies were identified, of which only 11 were included in this review, in the following categories: maternal feelings, care needs and challenges, breastfeeding, mother-infant bonding and social support. Final considerations: Mothers of children born with low birth weight experience insecurity and general adaptation problems that affect care to meet the child's essential needs. Family support and support from health professionals can reinforce maternal security and contribute to the comprehensive health care of low birth weight children.

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Introducción: El parto prematuro y el bajo peso al nacer constituyen un problema de salud a escala mundial, ya que representan un predictor importante del desarrollo y crecimiento posnatal, así como un indicador de morbilidad y mortalidad infantil. Objetivo: Caracterizar a madres con recién nacidos prematuros y de bajo peso según variables clínicas y epidemiológicas. Métodos: Se realizó un estudio descriptivo, de corte transversal, desde enero hasta diciembre de 2022, de 35 madres con recién nacidos prematuros y de bajo peso, pertenecientes al Policlínico Docente Área Este de la ciudad de Camagüey. Entre las variables analizadas figuraron: edad, estado nutricional, clasificación del riesgo, control prenatal, riesgo reproductivo preconcepcional, consulta multidisciplinaria, enfermedades propias del embarazo, estado al nacer, deficiencias detectadas y causas. Resultados: En la serie predominaron el grupo etario de 35 y más años (25,7 %), la obesidad (37,1 %), las madres con elevados riesgos (45,7 %), quienes recibieron entre 8-14 controles prenatales, y malos antecedentes obstétricos (31,4 %). Por otra parte, 22,9 % de las madres tuvieron hijos con bajo peso y 31,4 %, prematuros; en tanto, hubo dificultades en el seguimiento por ausencias (57,1 %). Conclusiones: Las madres presentaron características clínicas y epidemiológicas desfavorables, tales como la edad de 35 y más años, la obesidad, el alto riesgo, los malos antecedentes obstétricos y la infección vaginal como enfermedad propia del embarazo, que influyeron en que los neonatos fueran prematuros o de bajo peso, o ambos.

Introduction: Preterm birth and low birth weight constitute a health problem worldwide, since they represent an important predictor of development and postnatal growth, as well as an indicator of newborn morbidity and mortality. Objective: To characterize mothers with preterm and low weight infants according to clinical and epidemiological variables. Methods: A descriptive, cross-sectional study was carried out from January to December, 2022, of 35 mothers with preterm and low weight infants, belonging to the East Area Teaching Polyclinic in Camagüey city. Age, nutritional state, risk classification, prenatal control, preconcepcional reproductive risk, multidisciplinary visits, diseases characteristic of pregnancy, birth state, detected deficiencies and causes were among the analyzed variables. Results: In the series there was prevalence of the 35 and over age group (25.7%), obesity (37.1%), high risk mothers (45.7%) who received among 8-14 prenatal controls, and bad obstetric history (31.4%). On the other hand, 22.9% of the mothers had low weight children and 31.4% preterm children; as long as there were difficulties in follow up due to absences (57.1%). Conclusions: The mothers presented unfavorable clinical and epidemiological characteristics, such as the 35 and over years, obesity, high risk, bad obstetric history and vaginal infection as a disease characteristic of pregnancy, which influenced the infants to be preterm or low weight, or both.

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OBJECTIVE: To describe the association of maternal and neonatal characteristics with the adherence status to the in-hospital stages of the Kangaroo-Mother Care Method - KMC (full, partial, and no-adherence). METHODS: Retrospective cohort study including infants < 2500 g admitted to a reference maternity hospital for the KMC in Rio de Janeiro from January to December 2018. Maternal and neonatal characteristics were distributed according to the adherence status to the KMC in-hospital stages. In the first stage, KMC is performed in Neonatal Intensive Care Unit and Conventional Neonatal Intermediate Care Unit. The second stage is completed in Kangaroo Neonatal Intermediate Care Unit. Multinomial multiple regression was performed with KMC adherence as a three-category dependent variable and maternal and neonatal characteristics as independent variables. RESULTS: Of 166 dyads, 102 (61.5%) participated in two stages. Those who did not participate in any stage (n = 52; 31.3%) had a lower level of education, a higher frequency of adverse conditions, and were more often single mothers; mothers who participated only in the first stage (n = 12; 7,2%) had more premature and sick infants. Conditions associated with adherence to the two stages compared to no adherence were: high school education (OR = 2.34; 95% CI = 1.08-5.07), presence of a partner (OR = 3.82; 95% CI = 1.7-8.61), no adverse conditions (OR = 3.54; 95% CI = 1.59-7.89) and no neonatal resuscitation (OR = 2.73; 95% CI = 1.22-6.1). CONCLUSIONS: The study identified maternal and neonatal conditions associated with adherence status to the KMC. The results suggest opportunities to improve adherence.

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OBJECTIVE: To evaluate the clinical effect of sodium glycerophosphate (NaGP) in parenteral nutrition solutions on mineral metabolism in extremely low birth weight (ELBW) infants. STUDY DESIGN: NaGP was introduced for use in place of potassium phosphate (K3PO4) in January 2018; this retrospective cohort study included 95 ELBW infants treated with K3PO4 between January 2015 and December 2017 and 77 infants treated with NaGP between August 2018 and January 2021. Mineral intake over the first 14 days; changes in serum calcium, phosphorus, sodium, and alkaline phosphatase (ALP) levels over the first 1-3 months; and the rates of electrolyte imbalance and clinical morbidity were compared. High-risk infants who had nil per os (NPO) status for >14 days and prolonged parenteral nutrition exposure were further analyzed as a subgroup. RESULTS: The use of NaGP instead of K3PO4 significantly increased Ca and P intake, but intakes remained below the recommended range (Ca, 64-140 mg/kg/day; P, 50-108 mg/kg/day). Compared with levels in the K3PO4 group, the NaGP group had significantly higher serum Ca and P levels after day 14 and lower ALP levels after day 56. In the subgroup analysis, the NaGP group had significantly lower incidences of hypophosphatemia, hyponatremia, bronchopulmonary dysplasia, and ALP >500 IU/L. CONCLUSIONS: Although the administration of NaGP instead of K3PO4 in parenteral nutrition regimens still did not provide adequate Ca and P intake for ELBW infants, higher intake significantly improved serum Ca and P levels, especially in ELBW infants with prolonged parenteral nutrition exposure.

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El abordaje nutricional en los recién nacidos de muy bajo peso al nacimiento constituye un desafío en la práctica clínica de los neonatólogos, y muchas veces se aborda fuera del período crítico. Existe evidencia contundente de que la optimización nutricional precoz impacta en forma directamente proporcional en la sobrevida y sobrevida sin morbilidades mayores para este grupo. La implementación de lactancia materna precoz en este contexto debe ser una prioridad del equipo asistencial, siendo la mejora de calidad una herramienta de demostrada utilidad para mejorar los resultados en términos de mortalidad y morbilidad neonatal.

The nutritional approach of the very low birth weight infant poses a great challenge to most neonatologists in their clinical practice, and it is frequently delayed until de newborn is in stable clinical conditions. Currently, scientific evidence supports that early nutritional optimization impacts directly on this group's survival and on their survival without major morbidities. Initiatives fostering early breastfeeding should be prioritized by the healthcare team. Quality improvement has shown to be a very useful resource to improve outcomes regarding neonatal mortality and morbidities.

A abordagem nutricional do recém-nascido de muito baixo peso representa um grande desafio para a maioria dos neonatologistas em sua prática clínica, sendo frequentemente postergada até que o recém-nascido esteja em condições clínicas estáveis. Atualmente, evidências científicas sustentam que a otimização nutricional precoce impacta diretamente na sobrevivência desse grupo e na sobrevivência sem maiores morbidades. Iniciativas de incentivo ao aleitamento materno precoce devem ser priorizadas pela equipe de saúde. A melhoria da qualidade tem se mostrado um recurso muito útil para melhorar os desfechos em relação à mortalidade e morbidades neonatais.

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Death is a frequent occurrence in late-onset neonatal sepsis (LOS). We aimed to evaluate if the Neonatal Sequential Organ Failure Assessment (nSOFA) is associated with mortality due to LOS in very low birth weight (VLBW) infants. This is a single-center Brazilian cohort study including VLBW infants admitted between 2006 and 2020 who were diagnosed with LOS caused by Staphylococcus aureus, Enterococcus sp or Gram-negative bacteria. The primary outcome was mortality associated with sepsis. Two groups of patients-survivors and non-survivors-were compared regarding descriptive maternal and neonatal variables and the nSOFA score, evaluated at nine moments, from 48 hours before the diagnosis of sepsis to 48 hours later (T-48, T-24, T-12, T-6, T0, T+6, T+12, T+24, T+48). Diagnostic accuracy was expressed as the area under the curve (AUC). Among the 1574 VLBW infants hospitalized in the period, 114 episodes of culture-confirmed LOS occurred. There were 21 sepsis-related deaths (18.4%), mostly from Gram-negative bacteria and Enterococcus sp. There were no statistically significant differences between the groups regarding maternal and neonatal variables. Median nSOFA was significantly higher in the non-survivor group at all time points (range 2 to 13 versus 1 to 3). In the logistic regression analysis, each increment of one point in the score significantly increases the risk of death in eight of the nine moments, but no difference was found in T-24. Time T-6 had the best accuracy (88.1%).   Conclusion: The nSOFA score was significantly associated with the risk of death from LOS in VLBW infants. What is Known: • The neonatal sepsis may result in organ dysfunction and death, and it is important to find indicators that could identify this clinical progression. • The nSOFA score was proposed in 2020 to predict mortality from LOS, but since it is recent and still in the research phase, further studies are important to improve it before being widely used in clinical practice. What is New: • We showed a significative association between higher nSOFA scores and mortality. Our results corroborate the validity and the importance of the nSOFA score and highlight its high NPV.

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Introducción: Un 40% de los niños prematuros son egresados de las unidades neonatales y las familias se ven enfrentados a una situación inesperada. Criar un niño prematuro y bajo peso al nacer en posición canguro en el hogar no es tarea fácil para las madres es un cuidado extremo, significa un reto que será compensado con el crecimiento infantil. Objetivo: describir el significado del cuidado materno cultural del lactante prematuro y/o de bajo peso al nacer con oxígeno domiciliario. Metodología: estudio de tipo cualitativo con abordaje etnográfico, realizado en un Programa Canguro ambulatorio de un hospital de Bogotá Colombia. En la investigación previo consentimiento informado y aprobación institucional, participaron 8 madres, la descripción densa o la saturación de la muestra se dio con 21 entrevistas grabadas en los hogares y transcritas textualmente. Para la recolección y análisis de la información se usó la teoría de la diversidad y de la universalidad de los cuidados culturales de Madeleine Leininger y la entrevista a profundidad de James Spradley. Resultados: El significado que asignan las madres al cuidado del niño/a con oxígeno domiciliario es descrito en 9 dominios: El oxígeno como una necesidad vital, conocimientos culturales, conocimientos y educación sobre la administración de oxígeno domiciliario, trámites y sus dificultades, el desplazamiento de la madre con el niño/a prematuro con oxígeno domiciliario, higiene y vestido, los costos se aumentan, participación del padre y familiar y alteración de las emociones maternas. Conclusiones: En el saber de las madres el cuidar a su hijo con oxígeno domiciliario significa "estar pendiente" e interpretan el oxígeno como una necesidad vital. Se requiere incluir el tema en los programas de pregrado y posgrado de enfermería y generar investigaciones al respecto.

Introduction: Forty percent of premature infants are discharged from neonatal intensive care units, and their families face an unexpected situation. Raising a premature or low-birthweight baby using the kangaroo method at home is not an easy task, and, for mothers, it involves extreme care and is a challenge that will be compensated with the infant's growth. Objective: To describe the cultural meaning assigned by mothers to the care they give to their preterm or low-birthweight infants with home oxygen therapy. Methods: Qualitative study with an ethnographic approach conducted with mothers enrolled in an outpatient kangaroo program in a hospital in Bogotá, Colombia. Eight mothers participated in the research after informed consent and institutional approval were obtained. Thick description or data saturation was achieved with 21 interviews recorded at the participants' homes and transcribed verbatim. For data collection and analysis, Madeleine Leininger's theory of culture care diversity and universality and James Spradley's in-depth interview were used. Results: T h e m e a n i n g assigned by the mothers to the care given to their children with home oxygen therapy is described in nine domains: oxygen as a vital necessity, cultural knowledge, knowledge and education about oxygen therapy administration at home, paperwork and paperwork difficulties, mother's trips with a preterm infant on home oxygen therapy, hygiene and dressing, increased costs, father and other family member involvement, and maternal emotion alterations. Cultural beliefs and practices immersed in the three types of cultural care (preservation, accommodation, and repatterning) are also identified from the analysis of Madeleine Leininger's theory. The technological, religious and physiological, social, cultural, political, economic, and educational factors that influence the culture of the mothers interviewed are evident. Conclusions: In the mothers' minds, caring for their children receiving home oxygen therapy means "being vigilant," and they interpret oxygen as a vital necessity. It is necessary to include the topic in undergraduate and graduate nursing programs and to conduct research on the subject.

Introdução: 40% das crianças prematuras recebem alta das unidades neonatais e as famílias se deparam com uma situação inesperada. Criar um bebê prematuro e/ou de baixo peso ao nascer na posição canguru em casa não é uma tarefa fácil, e para as mães é um cuidado extremo e representa um desafio que será compensado com o crescimento da criança. Objetivo: descrever o significado cultural que as mães atribuem aos cuidados que prestam aos filhos prematuros e/ou de baixo peso com oxigênio domiciliar. Método: estudo qualitativo com abordagem etnográfica, realizado em um programa ambulatorial canguru de um hospital de Bogotá, Colômbia. Oito mães participaram da pesquisa, com Consentimento Livre e Esclarecido e aprovação institucional. A saturação da amostra ocorreu com 21 entrevistas gravadas nos domicílios e transcritas na íntegra. Para a coleta e análise das informações, utilizou-se a teoria da diversidade e universalidade dos cuidados culturais de Madeleine Leininger e a entrevista em profundidade de James Spradley. Resultados: o significado que as mães atribuem ao cuidado da criança com oxigênio domiciliar é descrito em nove domínios: oxigênio como necessidade vital, conhecimentos culturais, conhecimentos e educação sobre administração de oxigênio domiciliar, procedimentos e suas dificuldades, deslocamento do mãe com o prematuro com oxigênio domiciliar, higiene e vestuário, aumento de custos, participação do pai e da família e alteração das emoções maternas; Também são identificadas crenças e práticas culturais imersas nos três tipos de cuidado: preservação, adaptação e reorientação do cuidado cultural a partir da análise com a teoria de Madeleine Leininger e os fatores tecnológicos, religiosos e fisiológicos, sociais, culturais, políticos, econômicos e educacionais que influenciam a cultura das mães entrevistadas. Conclusões: no conhecimento das mães, cuidar do filho com oxigênio domiciliar significa "estar atentas" e elas interpretam o oxigênio como uma necessidade vital. É necessário incluir o tema nos programas de graduação e pós-graduação em enfermagem e gerar pesquisas sobre o assunto.

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Introducción: en Uruguay, la proporción de nacimientos con bajo peso al nacer (BPN) se mantiene cercana al 8%. En este grupo resulta un desafío conseguir un adecuado crecimiento y desarrollo enfocado a prevenir enfermedades a mediano y largo plazo. Objetivo: analizar la velocidad de crecimiento y los aspectos nutricionales de una cohorte de recién nacidos (RN) con BPN desde su egreso hospitalario y hasta los 12 meses de edad corregida (EC). Metodología: estudio descriptivo, prospectivo, de los RN con BPN de la unidad neonatal de la Maternidad del Hospital de Clínicas Dr. Manuel Quintela, entre el 1 de enero y el 31 de diciembre de 2015. Se excluyeron los portadores de malformaciones congénitas y patología quirúrgica al nacer. Se evaluó peso, longitud y perímetro craneano al egreso, y a los 5, 9 y 12 meses de EC. La velocidad del crecimiento fue analizada mediante z-score y Δz-score ajustado a EC en curvas de la OMS. Se estimó aporte nutricional en cada control y se exploraron asociaciones entre cambios en la curva de crecimiento y el grado de adecuación de la ingesta calórica estimada. Resultados: ingresaron al estudio 31 recién nacidos: con peso al nacer <1.500 g hubo 7 neonatos y ≥1.500 g 24. Edad gestacional (EG) media 32,5 semanas (rango 25-39), un término y 30 prematuros: extremos 2, muy prematuros 9, y moderados 19. En relación al peso al nacer para la EG 21 fueron adecuados (AEG), 7 pequeños (PEG) y 3 grandes (GEG). Completaron los tres controles programados 26 niños. En el primer control mantuvieron el carril de crecimiento 15 niños, descendieron 8 y aceleraron 8; en el segundo mantuvieron 9, desaceleraron 8 y aceleraron 12; y en el tercero mantuvieron 9, desaceleraron 7 y aceleraron 10. El número de niños que al final del seguimiento mantenían el mismo carril de crecimiento que al nacer, descendió a expensas de un aumento de aquellos que aceleraron el crecimiento. Al llegar al tercer control se encontró que sólo 9 niños mantuvieron el carril de crecimiento al nacer y el resto (17) cambiaron de carril, lo cual resultó en una diferencia significativa. En los 10 pacientes que aceleraron su crecimiento durante el primer año de vida, no se encontraron asociaciones entre la velocidad de crecimiento y las características energéticas de la alimentación complementaria que recibían. Conclusiones: se observaron problemas en el crecimiento de los niños con BPN durante el primer año de vida. Una proporción significativa presentaron crecimiento acelerado lo cual es un factor de riesgo para obesidad y enfermedades crónicas no transmisibles. Es necesario profundizar en las causas de estas alteraciones, en especial relacionadas con las prácticas de alimentación, para desarrollar estrategias que contribuyan a la prevención.

Introduction: in Uruguay, the proportion of low weight births (LBW) remains close to 8%. It is a challenge to achieve adequate growth and development focused on preventing diseases in the medium and long term for the case of this group. Objective: analyze the growth rate and nutritional aspects of a cohort of newborns (NB) with LBW since they were discharged from the hospital and until 12 months of corrected age (CA). Methodology: descriptive, prospective study of NBs with LBW of the neonatal ward of the Manuel Quintela Maternity Hospital, between January 1 and December 31, 2015. We excluded carriers of congenital malformations and surgical pathology at birth and assessed weight, length and cranial perimeter at discharge, and at 5, 9 and 12 months of CA. The growth rate was analyzed using z-score and Δz-score adjusted to CA in WHO curves. Nutritional contribution was estimated in each check-up and associations were explored between changes in the growth curve and the degree of adequacy of the estimated caloric intake. Results: 31 newborns participated in the test: 7 newborns had a birth weight of <1.500 g and ≥1.500 g: 24. Mean Gestational Age (GA) 32.5 weeks (range 25-39), one term and 30 preterm newborns: extreme 2, very premature 9, and moderate 19. Regarding birth weight according to gestational age, 21 were appropiate for gestational age (AGA), 7 small for gestational age (SGA) and 3 large for gestational age (LGA). The 26 children completed the 3 scheduled check-ups. In the 1st check-up, 15 children had been able to maintain the growth trend, in 8 of them it had decreased and in 8 it had accelerated; in the 2nd check-up 9 of them maintained their growth rate, 9 decreased it and 12 of the newborns increased it; and in the 3rd check-up, the trend remained steady for 9 of them , it decreased for 7 of them and it increased for 10 of them. The number of children who at the end of the follow-up maintained the same growth trend they had at birth decreased, despite the increase in the growth trend of those with a more accelerated growth. At the time of the 3rd check-up it was found that only 9 children maintained the growth trend they had at birth and the rest, (17), changed trends, which resulted in a significant gap. We did not find links life between the growth rate and the energy characteristics of the supplementary food they received in the 10 patients who had increased their growth rate in their first year of life. Conclusions: we observed problems regarding the growth rate of children with LBW during the first year of life. A significant proportion showed accelerated growth, which is a risk factor for obesity and chronic non-communicable diseases. It is necessary to research the causes of these alterations, especially regarding their feeding practices in order to develop strategies for their prevention.

Introdução: no Uruguai, a proporção de recém-nascidos com baixo peso ao nascer (LBW) permanece próxima de 8%. É um desafio alcançar um crescimento e desenvolvimento adequados focados na prevenção de doenças a médio e longo prazo nesse grupo de crianças. Objetivo: analisar a taxa de crescimento e aspectos nutricionais de uma coorte de recém-nascidos (RN) com LBW no momento da alta hospitalar e até 12 meses de idade corrigida (EC). Metodologia: estudo prospectivo de RNs com LBW da unidade neonatal da Maternidade do Hospital Dr. Manuel Quintela, entre 1º de janeiro e 31 de dezembro de 2015. Foram excluídos portadores de malformações congênitas e patologia cirúrgica ao nascer. Peso, comprimento e perímetro craniano foram avaliados no momento da alta hospitalar e aos 5, 9 e 12 meses de EC. A velocidade de crescimento foi analisada utilizando-se pontuação z e pontuação Δz ajustada ao EC das curvas da OMS. A contribuição nutricional foi estimada em cada controle e as associações entre mudanças na curva de crescimento e o grau de adequação da ingestão calórica estimada foram exploradas. Resultados: 31 recém-nascidos entraram no estudo: com peso ao nascer <1500 g havia 7 recém-nascidos e ≥1500 g: 24. Idade Gestacional Média (EG) 32,5 semanas (faixa 25-39), um termo e 30 prematuros: extremos 2, muito prematuros 9 e moderados 19. Em relação ao peso ao nascer para EG, 21 foram adequados (AEG), 7 pequenos (PEG) e 3 grandes (GEG). As 26 crianças completaram os 3 controles programados. No 1º controle, 15 crianças mantiveram a faixa de crescimento, 8 desceram e 8 aceleraram; no 2º mantiveram 9, desaceleraram 8 e aceleraram 12; e no 3º mantiveram 9, desaceleraram 7 e aceleraram 10. O número de crianças que, ao final do seguimento, manteve a mesma faixa de crescimento do que ao nascer diminuiu mesmo que houve um aumento daqueles que aceleraram o crescimento. No 3º controle foi constatado que apenas 9 crianças mantiveram a faixa de crescimento que tinham ao nascer e o resto (17) mudou de faixa, resultando numa diferença significativa. Nos 10 pacientes que aceleraram seu crescimento durante o primeiro ano de vida, não foram encontradas associações entre a velocidade de crescimento e as características energéticas da alimentação complementar que receberam. Conclusões: foram observados problemas no crescimento de crianças com LBW durante o primeiro ano de vida. Uma proporção significativa delas mostrou crescimento acelerado, que é um fator de risco para obesidade e doenças crônicas não transmissíveis. É necessário aprofundar nas causas dessas alterações, especialmente aquelas relacionadas às práticas alimentares para poder desenvolver estratégias que contribuam para a prevenção.

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BACKGROUND: Maternal hyperglycemia, periodontitis, and adverse gestational outcomes are important health problems. The present study investigated the hypothesis that periodontitis and the glycemic level of mothers may have opposing influences on birth weight (BW). This study evaluated the effect of high glycemic levels, albeit within the normal range, on the association between periodontitis and low birth weight (LBW). METHODS: A total of 732 women took part in this case-control study; 172 were mothers of children with LBW <2,500 g, and 560 were mothers of children with BW ≥2,500 g. The BW of newborns was obtained from medical records, and information on socioeconomic-demographic, lifestyle behavior were obtained through interviews. Glycated hemoglobin (HbA1c) levels were evaluated, and full-mouth periodontal examination was carried out within 7 days postpartum. Hierarchical and logistic regression analysis evaluated the effect of glycemic levels on the association between periodontitis and LBW by subgroups, estimating odds ratios (OR) with 95% confidence intervals (95% CI). RESULTS: In the group with HbA1c levels <5.6%, a statistically significant relationship existed between periodontitis and LBW. Using the Centre for Disease Control/American Academy of Periodontics criteria, the ORadjusted was 1.55; 95% CI: 1.04 to 2.31; using the Gomes-Filho et al. criteria the ORadjusted was 1.91; 95% CI, 1.06 to 3.45. In the group with higher HbA1c levels but still within the normal range (≥5.6% and <6.5%), the findings showed no association between periodontitis and LBW. CONCLUSION: Higher maternal glycemic levels within the normal range, inferior to those indicative of gestational diabetes, diabetes mellitus, or hyperglycemia, and periodontitis have opposing effects on BW, altering the association magnitude.

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Monitoring preterm infants' growth is essential to ensure the best prognosis for their growth and development. We aimed to compare growth curves in very low birth weight preterm infants after hospital discharge. In this retrospective longitudinal study, 178 preterm infants' growth was assessed by z-scores for weight for age and length to age and compared between Fenton and Kim and Intergrowth-21st charts from hospital discharge until 50 weeks postnatal, and between Intergrowth-21st and WHO charts, 50 and 64 weeks postnatal. The Kappa test was used to evaluate the agreement of the number of cases classified above or below the -2 Z-score concerning weight-for-age and length-for-age indicators to each proposed curve. Our results found that the agreement between Fenton and Kim and Intergrowth-21st curves was almost perfect for most of the weeks investigated, except 35-38 (k = 0.79) and 47-50 (k = 0.61) weeks postnatal. When evaluating the agreement between WHO and Intergrowth-21st, it was substantial for most of the weeks investigated, except for 55-58 and 69-64 weeks postnatal, in which the agreement was almost perfect (k = 0.84; k = 0.81, respectively). Furthermore, we observed that Fenton and Kim curve identified 8.4% and WHO, 5.8% more cases of preterm infants below -2 z than Intergrowth-21st.Conclusion: Although the agreement of the curves was substantial to almost perfect, the Fenton and Kim and WHO curve seem to identify more cases of preterm infants compared to the Intergrowth-21st, a finding that deserves more in-depth investigation in clinical practice. What is Known: • The adequate interpretation of postnatal growth depends on the standard growth chart. • Studies comparing the classification of anthropometric indicators of preterm infants between growth curves consider only the period from birth to hospital discharge. What is New: • This is the first study that compares the classification of weight-for-age and length-for-age indicators of VLBW preterm infants between Intergrowth-21st and Fenton and Kim curves until 64 weeks postnatal. • Substantial to almost perfect agreement of length-for-age indicator was found between the two growth curves of preterm infants during outpatient follow-up.

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La presente investigación tuvo como fin medir la respuesta fisiológica (frecuencia cardiaca, saturación de oxígeno y temperatura) del niño(a) prematuro(a) o con bajo peso al nacer, con la aplicación de la técnica "Masaje al Bebé Canguro-MBC", con el animo de demostrar la seguridad de esta técnica en estos parámetros fisiológicos en el recién nacido. Por lo tanto, se efectuó un estudio cuantitativo, con diseño preexperimental de preprueba/posprueba con un solo grupo entre enero y junio del 2019 en un Programa Canguro Ambulatorio de Bogotá. Resultados: Se acogieron un total de 63 bebés canguro. Se realizó análisis estadístico con SPSS, descriptivo e inferencial con prueba de normalidad de Kolmogorov-Smirnov y métodos paramétricas t-student y no paramétricas Friedman. La frecuencia cardiaca presentó un aumento en el índice siendo la media inicial de 147.22±7.17 lpm y de 147.54±7.96 lpm después de la intervención, aunque este no fue significativo (p=0.603). Por su parte, la oximetría presentó un aumento al ser la mediana inicial de 92% y después del MBC 93% variación que fue significativa (p=0.000). Finalmente la temperatura inicial y después presentó una mediana de 36.6°C con un índice inicial de 36.59±0.169°C y de 36.62±0.163°C después de la intervención, aunque este no fue significativo (p=0.182). Se realizó un modelo de regresión ajustado a las variables fisiológicas no encontrandose factores predictores estadísticamente significativos. Desde el modelo de Callista Roy el MBC tuvo una respuesta adaptativa eficaz. Conclusiones: La técnica de MBC tiene un efecto favorable y seguro en la frecuencia cardiaca, saturación de oxigeno y temperatura sin alteración de los parámetros normales con buena adaptación según el modelo de Callista Roy.

The purpose of this research was to measure the physiological response (heart rate, oxygen saturation and temperature) of the premature or low birth weight child, with the application of the "Kangaroo Baby MassageKBM" technique. , with the aim of demonstrating the safety of this technique in these physiological parameters in the newborn. Therefore, a quantitative study, with a pre-experimental pre-test/post-test design, was carried out with a single group between January and June 2019 in a Kangaroo Outpatient Program in Bogotá. Results: A total of 63 kangaroo babies were received. Statistical analysis was performed with SPSS, descriptive and inferential with the Kolmogorov-Smirnov normality test and parametric tstudent and non-parametric Friedman methods. The heart rate presented an increase in the index, the initial mean being 147.22±7.17 bpm and 147.54±7.96 bpm after the intervention, although this was not significant (p=0.603). On the other hand, oximetry showed an increase as the initial median was 92% and after the KBM was 93%, a variation that was significant (p=0.000). Finally, the temperature presented initial and after median 36.6°C an increase with an initial index of 36.59±0.169°C and 36.62±0.163°C after the intervention, although this was not significant (p=0.182). A regression model adjusted to the physiological variables was performed, and no statistically significant predictive factors were found. From Callista Roy's model, the KBM had an effective adaptive response. Conclusions: The KBM technique has a favorable and safe effect on heart rate, oxygen saturation and temperature without alteration of normal parameters with good adaptation according to the Callista Roy model.

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Introdução: alterações no padrão de crescimento de recém-nascidos prematuros podem ter implicações para sua saúde futura. A literatura dispõe de diversas ferramentas e pontos de corte para avaliação da sua adequação, logo, diferentes diagnósticos podem ser obtidos a depender do parâmetro adotado. Objetivo: determinar a diferença no diagnóstico de Retardo de Crescimento Extrauterino em prematuros, durante internamento hospitalar, conforme as curvas de Fenton e Intergrowth. Metodologia: trata-se de estudo transversal, com dados secundários, coletados durante o internamento em unidade de terapia intensiva e de cuidados intermediários convencionais neonatais de uma maternidade pública, em 2019, Coletaram-se medidas de peso e perímetro cefálico ao nascer e no momento da alta/transferência e calcularam-se seus respectivos indicadores antropométricos de acordo com as duas curvas. Utilizaramse duas classificações para o Retardo: diagnóstico de Pequeno para Idade Gestacional na alta/transferência; queda no escore Z dos indicadores maior ou igual a 1 entre o nascimento e a alta/transferência. Resultados: Não houve diferença em relação ao número de crianças classificadas como Pequeno para Idade Gestacional ao nascer, entre as curvas. Porém, no momento da alta/transferência houve maior prevalência de Pequeno para a Idade Gestacional/Retardo de Crescimento Extrauterino, de acordo com Fenton (73,6% versus 64,9%). A análise longitudinal dos indicadores de crescimento para caracterização do referido retardo por meio da curva de Fenton também detectou maior número de diagnósticos. Conclusão: conclui-se que o diagnóstico do retardo apresentou diferenças entre os referenciais. Os parâmetros de Fenton determinaram maior ocorrência dele no momento do desfecho, independente da realização da avaliação transversal ou longitudinal dos indicadores.

Introduction: changes in growth pattern of preterm infants may have implications for their future health. Literature has several tools and cutoff points to assess its adequacy, therefore, different diagnosis may be obtained depending on the adopted parameter. Objective: determine the difference in diagnosis of extrauterine growth restriction (EUGR) in preterm infants during hospitalization based on Fenton 2013) and Intergrowth-21 (2014) curves. Methods: this is a cross-sectional study with secondary data which were collected during hospitalization in an intensive care unit and neonatal conventional intermediate care in a public maternity hospital, in 2019. Results: weight and head circumference measurements were collected at birth and at discharge/transfer and their respective anthropometric indicators were calculated according to Fenton and Intergrowth-21 curves. The following EUGR criteria were used: diagnosis of small for gestational age (SGA) at discharge/transfer; decrease in Z score for indicators higher or equal to 1 between birth and discharge/transfer. There was no difference in the number of children classified as SGA at birth between the curves. However, at the time of discharge/ transfer there was a higher prevalence of SGA/EUGR according to Fenton (73.6% versus 64.9%). Longitudinal analysis of growth indicators for EUGR using Fenton curve also detected a higher number of patients with EUGR. Conclusion: the conclusion is that EUGR diagnosis showed differences between Fenton and Intergrowth methods. Fenton's parameters determined a higher occurrence of EUGR at the time of outcome, regardless of whether indicators were cross-sectionally or longitudinally evaluated.

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Resumen Introducción: El Bajo Peso al Nacer (BPN) tiene múltiples causas y continúa siendo un problema que afecta diferentes regiones de Colombia. Objetivo: Determinar los factores asociados con BPN en el Hospital Universitario Departamental de Nariño. Materiales y métodos: Estudio de casos y controles que incluyó madres y recién nacidos, cuyo parto fue atendido entre noviembre de 2014 y junio de 2015. Resultados: El riesgo de BPN fue mayor en mujeres con edad entre 10-19 años (OR=7,79, IC95%=2,61-23,23), con antecedente de infección vaginal durante el embarazo (OR=4, IC95%=1,26-12,66), nivel educativo primaria incompleta (OR=10,93, IC95%=1,51-79,13) o primaria completa (OR=2,94, IC95%=1,06-8,13), afiliadas al régimen de salud subsidiado (OR=4,96, IC95%=1,71-14,41). El riesgo de tener un recién nacido con BPN se redujo un 10% (OR=0,90, IC95%=0,84-0,96) por cada incremento en una unidad de Índice de Masa Corporal y un 76% (OR=0,23, IC95%=0,16-0,34) por cada incremento en una semana de gestación. Conclusiones: La mayoría de factores de riesgo identificados pueden ser prevenidos o intervenidos precozmente desde un enfoque de salud pública.

Abstract Introduction: Low Birth Weight (LBW) has multiple causes and continues to be a problem that affects different regions of Colombia. Objective: To determine factors associated with LBW in the Departmental University Hospital of Nariño (Colombia). Materials and methods: A case-control study that included newborns and mothers whose delivery took place between November 2014 and June 2015. Results: Risk of LBW was higher in: women aged between 10-19 years (OR=7.79, 95%CI=2.61-23.23); with history of vaginal infection during pregnancy (OR=4, 95%CI=1.26-12.66); and those affiliated with the subsidized health regimen (OR=4.96, 95%CI=1.71-14.41). The risk of having a newborn with LBW was reduced by 10% (OR=0.90, 95%CI=0.84-0.96) for each one unit increase in Body Mass index, and by 76% (OR=0.23, 95%CI=0.16-0.34) for each increase in one week of gestation. Conclusions: Most of the identified risk factors can be prevented or intervened with through an early public health approach.

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A low birth weight (LBW, < 2500 g), intrauterine growth restriction (IUGR), and preterm birth (PB, < 37 weeks of gestational age) are the most common clinical factors for an altered programming of nephron number and are associated with a greater risk for hypertension, proteinuria, and kidney disease later in life. At present, an indirect assessment of total nephron number based on postnatal markers is the most important approach to evaluate the risk for future kidney disorders in newborn infants with a LBW, IUGR or PB. Here we describe advances made in animal experiments and biochemical markers in humans, and the recommendations for the prevention of preconception kidney injury, including social factors and chronic diseases. According to the evidence, IUGR and prematurity alone can modulate nephrogenesis and kidney function, and, if occurring simultaneously, their effects tend to be cumulative.

El bajo peso al nacer (BP, < 2500 g), la restricción del crecimiento intrauterino (RCIU) y el parto prematuro (PP, < 37 semanas de gestación) son los factores clínicos más habituales para la programación alterada del número de nefronas y se asocian con un mayor riesgo de hipertensión, proteinuria y enfermedad renal futura en la vida. En la actualidad la evaluación indirecta del número total de nefronas mediante el uso de marcadores en el período posnatal representa el enfoque principal para evaluar el riesgo de evolución futura de los trastornos renales en los recién nacidos con BP, RCIU o PP. Se presentan los avances en la investigación en animales y sobre marcadores bioquímicos en humanos, y recomendaciones para la prevención del daño renal preconcepcional, incluidos los factores sociales y las enfermedades crónicas. La evidencia demuestra que la restricción de crecimiento y la prematuridad solas son capaces de modular la nefrogénesis y la función renal y, cuando son concurrentes, sus efectos tienden a ser acumulativos.

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OBJECTIVE: Prematurity and low birth weight predispose preterm infants to cardiovascular disease in later life. Is the metabolic profile of these children impacted by the relation between birth weight and gestational age (GA)? This study aimed to evaluate whether the relationship between birth weight and GA of preterm infants has a positive correlation with the metabolic profile from birth to the sixth month of corrected age. METHODS: This is a longitudinal, prospective study with a cohort of 70 preterm and 54 term infants, who were enrolled in the study and shared into two groups: Appropriate for GA (AGA) and Small for GA (SGA), both classified at birth by Fenton and Kim curves. Longitudinal evaluation of anthropometry measures and blood samples of total cholesterol, glucose, triglycerides, and insulin were collected at birth, NICU discharge, and the sixth month of corrected age. Data were analyzed using descriptive and inferential statistical analysis (ANOVA, Fisher test, Shapiro-Wilk, and Cochran test). The effect size was 0.15, power was 0.92, and confidence interval 95%. RESULTS: No significant statistical differences were observed in relation to biochemical tests between AGA and SGA groups. However, a significant increase in triglyceride results above the reference values for age in the SGA group was observed throughout the follow-up. CONCLUSION: Changes observed in the preterm infant metabolic profile show no correlation with adequacy of birth weight. Preterm lipid profile requires continuous evaluation at follow-up, due to the increased cardiovascular risk in later life.

Assuntos

RESUMO

El bajo peso al nacer (BP, < 2500 g), la restricción del crecimiento intrauterino (RCIU) y el parto prematuro (PP, < 37 semanas de gestación) son los factores clínicos más habituales para la programación alterada del número de nefronas y se asocian con un mayor riesgo de hipertensión, proteinuria y enfermedad renal futura en la vida. En la actualidad la evaluación indirecta del número total de nefronas mediante el uso de marcadores en el período posnatal representa el enfoque principal para evaluar el riesgo de evolución futura de los trastornos renales en los recién nacidos con BP, RCIU o PP.Se presentan los avances en la investigación en animales y sobre marcadores bioquímicos en humanos, y recomendaciones para la prevención del daño renal preconcepcional, incluidos los factores sociales y las enfermedades crónicas. La evidencia demuestra que la restricción de crecimiento y la prematuridad solas son capaces de modular la nefrogénesis y la función renal y, cuando son concurrentes, sus efectos tienden a ser acumulativos.

A low birth weight (LBW, < 2500 g), intrauterine growth restriction (IUGR), and preterm birth (PB, < 37 weeks of gestational age) are the most common clinical factors for an altered programming of nephron number and are associated with a greater risk for hypertension, proteinuria, and kidney disease later in life. At present, an indirect assessment of total nephron number based on postnatal markers is the most important approach to evaluate the risk for future kidney disorders in newborn infants with a LBW, IUGR or PB.Here we describe advances made in animal experiments and biochemical markers in humans, and the recommendations for the prevention of preconception kidney injury, including social factors and chronic diseases. According to the evidence, IUGR and prematurity alone can modulate nephrogenesis and kidney function, and, if occurring simultaneously, their effects tend to be cumulative.

Assuntos