Desarrollo del dolor fetal y neonatal / Development of fetal and neonatal pain

Resumen: El dolor es el principal síntoma reportado a nivel mundial, es la principal causa de sufrimiento humano. Se considera que para que un individuo sienta dolor deben estar presentes: nociceptores, neurotransmisores del dolor, vías que llevan el estímulo al cerebro, el tálamo y conexión con la corteza. Por un tiempo se consideró que en esta etapa no se contaba con la madurez suficiente del sistema nervioso para sentir dolor; sin embargo, en la actualidad hay evidencia de que el feto presenta dolor; y su presencia altera el desarrollo del sistema nervioso. La presente revisión proporciona una visión actualizada de la ontogenia del dolor fetal y neonatal.

Abstract: Pain is the main symptom reported worldwide, it is the main cause of human suffering. It is considered that for an individual to feel pain, the following must be present: nociceptors, pain neurotransmitters, pathways that carry the stimulus to the brain, the thalamus and connection with the cortex. For a time it was considered that at this stage the nervous system was not mature enough to feel pain, however, there is currently evidence that the fetus has pain; and its presence alters the development of the nervous system. This review provides an updated view of the ontogeny of fetal and neonatal pain.

Lineamientos técnicos para la implementación de unidades de puertas abiertas en la atención de neonatos y población pediátrica / Technical guidelines for the implementation of open-door units in neonatal and paediatric care

Para salvaguardar la vida de cada niña y niño es imprescindible la participación de madres, padres, familiares y cuidadores en las unidades de atención neonatal y pediátricas, enfatizando el enfoque de derecho que facilita la transmisión de conocimientos, fomentando una cultura de corresponsabilidad entre el personal de salud y los / as usuarios /as, además promoviendo el empoderamiento de los familiares y cuidadores en el cuidado de niñas o niños durante el periodo de internación. Razón por la cual se han elaborado los presentes lineamientos, que promueven la transformación de las unidades de atención neonatales y pediátricas, a un modelo de puertas abiertas, con calidad, y con calidez, dando un mayor protagonismo y participación activa de las personas que son parte importante de la vida y desarrollo de la niña o niño, asegurando un enfoque práctico que facilite su implementación como parte de los derechos de la niñez, promoviendo la vinculación y participación activa de madres, padres, familiares y cuidadores las 24 horas del día en conjunto con el equipo de salud.

In order to safeguard the lives of each child, the participation of mothers, fathers, relatives and caregivers in neonatal and paediatric care units is essential, emphasizing the legal approach that facilitates the transmission of knowledge, fostering a culture of co-responsibility between health personnel and users//s, and promoting the empowerment of family members and caregivers in the care of children during the period of hospitalization.This is why these guidelines, which promote the transformation of neonatal and pediatric care units, have been developed into an open-door model with quality and warmth, giving greater prominence and active participation to persons who are an important part of the life and development of the child, ensuring a practical approach that facilitates its implementation as part of the rights of the child, promoting the involvement and active participation of mothers, fathers, relatives and caregivers 24 hours a day in conjunction with the health team.

Lineamientos técnicos para realizar tamizaje metabólico neonatal (Crecer juntos) / Technical Guidelines for Performing Neonatal Metabolic Screening (Growing Together)

El Ministerio de Salud, en el contexto de la Política Nacional de Apoyo al Desarrollo Infantil Temprano "Crecer Juntos" y en consonancia con la reciente Ley Nacer con Cariño para un Parto Respetado y un Cuidado Cariñoso y Sensible para el Recién Nacido, emanada desde el Despacho de La primera dama, decide implementar estrategias para disminuir la morbimortalidad, incluyendo el abordaje de aquellas situaciones o condiciones que afecten el neurodesarrollo en los niños y niñas. En este sentido, se ha tomado a bien, ampliar el tamizaje metabólico neonatal para incluir la detección de los errores congénitos del metabolismo más frecuentes como son: hipotiroidismo congénito, fibrosis quística, fenilcetonuria, tirosinemia neonatal transitoria, enfermedad de jarabe de arce e hiperplasia suprarrenal congénita. Por lo anterior, los presentes lineamientos técnicos de tamizaje metabólico neonatal, describen las disposiciones para realizar la toma de muestra para la detección, confirmación diagnóstica, tratamiento oportuno, seguimiento, monitoreo y evaluación en los establecimientos del Sistema Nacional Integrado de Salud (SNIS)

The Ministry of Health, in the context of the National Early Childhood Development Support Policy "Growing Together" and in line with the recent Birth with Affection Act for Respected Childbirth and Caring and Sensitive Care for the Newborn, from the Office of the First Lady, decides to implement strategies to reduce morbidity and mortality, including addressing those situations or conditions that affect neurodevelopment in children. In this sense, we have taken good care to expand the neonatal metabolic screening to include the detection of the most frequent congenital errors of metabolism such as: congenital hypothyroidism, cystic fibrosis, phenylketonuria, transient neonatal tyrosinemia, maple syrup disease and congenital adrenal hyperplasia. Therefore, the present technical guidelines for neonatal metabolic screening describe the arrangements for sampling for detection, diagnostic confirmation, timely treatment, monitoring, monitoring and evaluation in the National Integrated Health System

Factores de riesgo asociados a estancia hospitalaria prolongada en cuidados intensivos neonatales: Un estudio de casos y controles

Objetivo: Identificar las patologías o condiciones neonatales que influyen en la prolongación de la estancia hospitalaria en una Unidad de Cuidados Intensivos Neonatales (UCIN). Materiales y métodos: Se realizó un estudio observacional, retrospectivo, de casos y controles; en neonatos hospitalizados de la UCIN, durante el periodo 2015 - 2019, considerando sus diagnósticos perinatales y posnatales como factores a evaluar, así como la estancia hospitalaria. Se dividieron dos grupos: casos (estancia prolongada) y controles (estancia no prolongada). Los datos recolectados fueron procesados en el programa SPSS v.23 obteniendo el OR y la Regresión Logística Binaria. Resultados: Se incluyeron 361 neonatos (91 casos y 270 controles), encontrándose significancia en factores perinatales (p<0.05): Peso al nacer (1000g a <1500g, ORa 8.2: IC3.1 - 21.2) y edad gestacional (28 a 31 sem., ORa 18.6: IC4.8-71.4; 32-33 sem, ORa 8.1: IC3.5 - 18.4); y factores posnatales (p<0.05): Síndrome de distrés respiratorio (ORa 10.3:IC 4.8-22.2), Hipertensión pulmonar persistente (OR 32.2:IC 1.8-559.0), sepsis (ORa 7.1: IC 3.1-16.0), Malnutrición neonatal (ORa 10.2:IC 4.7-22.1) y anemia del prematuro (ORa 8.3:IC 2.4-28.1). No alcanzaron significancia: asfixia, taquipnea transitoria del recién nacido, neumonía, neumotórax, displasia broncopulmonar, síndrome de aspiración meconial, conducto arterioso persistente, cardiopatía congénita, hiperbilirrubinemia, hipoglicemia, enterocolitis necrotizante y apnea del prematuro. Conclusiones: El peso al nacer, edad gestacional, Síndrome de distrés respiratorio, Hipertensión pulmonar persistente, sepsis, malnutrición neonatal y anemia del prematuro son factores de riesgo para estancia hospitalaria prolongada.

Objective: Identify neonatal pathologies or conditions that influence the prolongation of hospital stay in a Neonatal Intensive Care Unit (NICU). Materials and methods: An observational, retrospective, case-control study was carried out; in neonates hospitalized in the NICU, during the period 2015-2019, considering their perinatal and postnatal diagnoses as factors to be evaluated, as well as hospital stay. Two groups were divided: cases (prolonged stay) and controls (non-prolonged stay). The collected data were processed in the SPSS v.23 program, obtaining the OR and the Binary Logistic Regression. Results: 361 neonates (91 cases and 270 controls) were included, finding significance in perinatal factors (p<0.05): Birth weight (1000g to <1500g, ORa 8.2: CI3.1 - 21.2) and gestational age (28 to 31 weeks , ORa 18.6: CI4.8-71.4; 32-33 weeks, ORa 8.1: CI3.5 - 18.4); and postnatal factors (p<0.05): RDS (ORa 10.3: CI 4.8-22.2), PHT (OR 32.2: CI 1.8-559.0), sepsis (ORa 7.1: CI 3.1-16.0), Neonatal malnutrition (ORa 10.2: CI 4.7 -22.1) and anemia of prematurity (aOR 8.3: CI 2.4-28.1). The following did not reach significance: asphyxia, transient tachypnea of ​​the newborn, pneumonia, pneumothorax, bronchopulmonary dysplasia, meconium aspiration syndrome, patent ductus arteriosus, congenital heart disease, hyperbilirubinemia, hypoglycemia, necrotizing enterocolitis, and apnea of ​​prematurity. Conclusions: Birth weight, gestational age, RDS, PHPT, sepsis, neonatal malnutrition and anemia of prematurity are risk factors for prolonged hospital stay.

Albúmina sérica predictor de resultados intrahospitalarios en pacientes admitidos a la UCIN del Hospital de la Mujer / Serum albumin predicator of intrahospital outcomes in patients admitted to the NICU of the women's hospital

INTRODUCCIÓN: En el estrés metabólico existe una sobreproducción proteica de reactantes positivos de la fase aguda y en el hígado, se frena la síntesis de otras proteínas, incluyendo la albúmina, denominadas Reactantes Negativos de la Fase Aguda. Los rangos de referencia precisos para la hipoalbuminemia patológica han resultado difíciles de determinar en los recién nacidos. MATERIAL Y MÉTODOS: Descriptivo de corte transversal en 494 recién nacidos. Se realizó un análisis exploratorio de los datos con estadística descriptiva mediante el paquete estadístico SPSS v.20. RESULTADOS: 494 neonatos fueron seleccionados, 39% fueron prematuros tardíos, 27% reportó hipoalbuminemia en sus diferentes grados que se correlacionaron con los días de internación en UCIN (p=0,0001), necesidad y tiempo en ventilador mecánico (p=0,001), con la mortalidad (p=0,001) y patología infecciosa (p=0,001). DISCUSIÓN: La incidencia acumulada de sepsis no confirmada por hemocultivo fue de 54%, La hipoalbuminemia tiene asociaciones importantes con la evolución y pronóstico en pacientes pediátricos. La PCR no tiene correlación en el estudio (p=0,232) y solo fue reactiva en 4 pacientes (0,8%). CONCLUSIONES: El nivel de albúmina sérica reportada en las primeras 24 horas de ingreso a la UCIN es un predictor para los resultados intrahospitalarios (tiempo y requerimiento de ventilación mecánica), mortalidad neonatal, sepsis neonatal y enfermedad de membrana hialina. Su determinación sérica debe ser incluida en la lista de exámenes de laboratorio solicitados a su admisión y la PCR al ingreso debe ser excluida por su pobre sensibilidad como sugiere la SIBEN.

INTRODUCTION: In metabolic stress, there is a protein overproduction of positive acute phase reactants and in the liver, the synthesis of other proteins, including albumin, called negative acute phase reactants is slowed down. Precise reference ranges for pathologic hypoalbuminemia have proven difficult to determine in neonates. MATERIAL AND METHODS: Descriptive cross section in 494 newborns. An exploratory analysis of the data with descriptive statistics was carried out using the statistical package SPSS v.20. RESULTS: 494 neonates were selected, 39% were late preterm, 27% reported hypoalbuminemia in its different degrees that correlated with the days of hospitalization in the NICU (p=0.0001), need and time on a mechanical ventilator (p=0.001), with mortality (p=0.001) and infectious pathology (p=0.001). DISCUSSION: The cumulative incidence of sepsis not confirmed by blood culture was 54%. Hypoalbuminemia has important associations with outcome and prognosis in pediatric patients. CRP does not correlate the study (p=0.232) and was only reactive in 4 patients (0.8%). CONCLUSIONS: Serum albumin level reported in the first 24 hours of NICU admission is a predictor for in-hospital outcomes (time and requirement of mechanical ventilation), neonatal mortality, neonatal sepsis, and hyaline membrane disease. Its serum determination should be included in the list of laboratory tests requested upon admission and the PCR upon admission should be excluded due to its poor sensitivity, as suggested by SIBEN.

Métodos para la detección de cardiopatías congénitas en neonatos

Las cardiopatías congénitas conforman el grupo de las malformaciones innatas más comunes, siendo vital su detección temprana. Este estudio tuvo por objetivo caracterizar las publicaciones acerca de los métodos para la detección de cardiopatías congénitas en neonatos a partir de tres categorías: las características generales de las investigaciones, la información de los investigadores y la definición y características de las metodologías practicadas. Para tal efecto, y con ayuda de tablas dinámicas de MS Excel 16.52 y el software VOSviewer 1.6.17, se llevó a cabo una revisión sistematizada que permitió recopilar 63 artículos publicados entre 2010 y 2021 en Scopus, Web of Science y PubMed. Los hallazgos evidencian que la producción académica ha ido incrementándose desde el 2018, teniendo a Estados Unidos a la vanguardia de esta y siendo la ecocardiografía y la oximetría los procedimientos más estudiados. La comparación entre las metodologías advierte que la detección por oximetría es la más destacable, en cuanto a los factores evaluados. Esta investigación abre nuevas líneas de indagación en la materia con la finalidad de desarrollar y aplicar nuevas metodologías o perfeccionar las ya existentes para que se ajusten a las necesidades de la población.

Congenital heart disease is one of the most common innate malformations, and early detection is vital. The aim of this study was to characterize the publications on methods for the detection of congenital heart disease in neonates based on three categories: the general characteristics of the investigations, the information provided by the researchers, and the definition and characteristics of the methodologies used. For this purpose, and with the help of MS Excel 16.52 pivot tables and VOSviewer 1.6.17 software, a systematized review was carried out that allowed us to compile 63 articles published between 2010 and 2021 in Scopus, Web of Science and PubMed. The findings evidence that academic production has been increasing since 2018, with the United States being at the forefront of this and echocardiography and oximetry being the most studied procedures. The comparison between the methodologies warns that detection by oximetry is the most outstanding in terms of the factors evaluated. This research opens up new lines of investigation in the field with the aim of developing and applying new methodologies or improving existing ones to meet the needs of the population.

Avaliação audiológica em bebês nascidos de mães que tiveram covid-19 no período gestacional / Audiological assessment in babies born to mothers who had covid-19 during gestation / Evaluación audiológica en bebés nacidos de madres que tenían covid-19 durante la gestación

Introdução: No final de dezembro de 2019, um grupo de casos inexplicáveis de pneumonia foi relatado em Wuhan, China. Alguns dias depois, o agente causador dessa misteriosa doença foi identificado como um novo coronavírus que se disseminou de forma rápida. As infecções maternas, contraídas antes ou durante a gravidez, podem ser transmitidas ao feto, durante a gestação (infecção congênita), durante o parto (infecção perinatal) e pela amamentação (infecção pós-natal) e podem causar danos ao feto ou ao recém-nascido. Objetivo: descrever a avaliação audiológica realizada em uma série de crianças cujas mães tiveram COVID-19, em sua forma leve, no período gestacional. Metodologia: Para a avaliação audiológica foram realizadas a anamnese e os exames de emissões otoacústicas por produto de distorção, nas frequências de 1,5 a 12KHz e pontencial auditivo de tronco encefálico por click. Resultados: A amostra foi composta por 47 recém-nascidos recém-nascidos. Os resultados dos testes das emissões otoacústicas evocadas por produto de distorção indicaram funcionalidade das estruturas avaliadas apontando normalidade da função coclear com nível de resposta adequado para a média de resultados obtidos até a frequência de 11kHz para a amplitude de resposta e para a relação sinal-ruído. Foi possível encontrar em toda a amostra a presença das ondas I, III e V na intensidade de 80dBHL e presença da onda V nas intensidades de 50 e 35dBHL bilateralmente. Conclusão: Não foi estabelecida uma correlação direta da infecção materna pelo vírus da covid-19 com os achados audiológicos nos recém- nascidos. Cabe mencionar que esse foi um estudo preliminar e que essas crianças precisam continuar em acompanhamento para investigação de futuros desfechos tardios no aparelho auditivo.

Introduction: In late December 2019, a cluster of unexplained pneumonia cases was reported in Wuhan, China. A few days later, the causative agent of this mysterious disease was identified as a new coronavirus that spread rapidly. Maternal infections, contracted before or during pregnancy, can be transmitted to the fetus during pregnancy (congenital infection), during childbirth (perinatal infection) and through breastfeeding (postnatal infection) and can cause harm to the fetus or newborn. -born. Objective: to describe the audiological evaluation carried out in a series of children whose mothers had COVID-19, in its mild form, during the gestational period. Methodology: For the audiological evaluation, anamnesis and distortion product otoacoustic emissions tests were carried out, at frequencies from 1.5 to 12KHz and brainstem auditory potential by click. Results: The sample consisted of 47 newborns. The results of the distortion product evoked otoacoustic emissions tests indicated functionality of the evaluated structures, pointing to normal cochlear function with an adequate response level for the average of results obtained up to a frequency of 11kHz for the response amplitude and the signal-to-noise ratio. . It was possible to find in the entire sample the presence of waves I, III and V at an intensity of 80dBHL and the presence of wave V at intensities of 50 and 35dBHL bilaterally. Conclusion: A direct correlation between maternal infection by the Covid-19 virus and audiological findings in newborns was not established. It is worth mentioning that this was a preliminary study and that these children need to continue being monitored to investigate future late outcomes with the hearing aid.

Introducción: A finales de diciembre de 2019, se informó un grupo de casos de neumonía inexplicable en Wuhan, China. Unos días después, el agente causante de esta misteriosa enfermedad fue identificado como un nuevo coronavirus que se propagó rápidamente. Las infecciones maternas, contraídas antes o durante el embarazo, pueden transmitirse al feto durante el embarazo (infección congénita), durante el parto (infección perinatal) y a través de la lactancia (infección posnatal) y pueden causar daños al feto o al recién nacido. Objetivo: describir la evaluación audiológica realizada a una serie de niños cuyas madres tuvieron COVID-19, en su forma leve, durante el período gestacional. Metodología: Para la evaluación audiológica se realizaron pruebas de anamnesis y otoemisiones acústicas de productos de distorsión, en frecuencias de 1,5 a 12KHz y potencial auditivo de tronco encefálico mediante click. Resultados: La muestra estuvo compuesta por 47 recién nacidos. Los resultados de las pruebas de distorsión producto de emisiones otoacústicas evocadas indicaron funcionalidad de las estructuras evaluadas, apuntando a una función coclear normal con un nivel de respuesta adecuado para los resultados promedio obtenidos hasta una frecuencia de 11kHz para la amplitud de respuesta y la relación señal-ruido. . Se pudo encontrar en toda la muestra la presencia de ondas I, III y V con una intensidad de 80dBHL y la presencia de la onda V con intensidades de 50 y 35dBHL de forma bilateral. Conclusión: No se estableció una correlación directa entre la infección materna por el virus Covid-19 y los hallazgos audiológicos en los recién nacidos. Cabe mencionar que este fue un estudio preliminar y que estos niños necesitan seguir siendo monitoreados para investigar futuros resultados tardíos con el audífono.

Diagnóstico audiológico de lactentes após falha na triagem auditiva neonatal universal / Hearing assessment after referral in universal newborn hearing screening

RESUMO Objetivo Estudar o processo de diagnóstico audiológico de lactentes que falharam na Triagem Auditiva Neonatal Universal (TANU). Métodos Análise dos prontuários de 51 lactentes que falharam na TANU nas maternidades do munícipio e que foram encaminhados a um centro de referência em saúde auditiva para diagnóstico audiológico, entre janeiro e junho de 2021. Foram identificados os lactentes que finalizaram o diagnóstico, aqueles que não compareceram ao agendamento para exames ou evadiram durante o processo. Tentativas de contato foram realizadas com os responsáveis pelos lactentes que evadiram, para identificar o motivo da evasão. Resultados O comparecimento ao diagnóstico ficou em 75%, com evasões entre o encaminhamento da maternidade para o centro de referência, bem como durante o processo de diagnóstico. Cinquenta por cento dos sujeitos concluíram as avaliações audiológicas até os 3 meses de vida. A tentativa de contato foi bem-sucedida com os responsáveis pelos lactentes que evadiram, sendo os motivos mais frequentes: adoecimento do lactente, distância entre a moradia e o centro de referência, horário de trabalho dos pais. Conclusão Na etapa de diagnóstico, o índice de comparecimento e o tempo de conclusão até o terceiro mês de vida da criança ficaram abaixo dos índices recomendados, diminuindo a efetividade do Programa de Triagem Auditiva Neonatal Universal (PTANU). A busca ativa por contato telefônico e uso de aplicativo de mensagem telefônico foi importante para reduzir a evasão em 76%. Outras ferramentas que aprimorem o processo para um diagnóstico não prolongado, evitando evasões, necessitam ser estudadas.

ABSTRACT Purpose To study the process of hearing assessment in infants who were referred by professionals responsible for Universal Newborn Hearing Screening (UNHS). Methods Analysis of the medical records of 51 infants referred by maternity hospitals where UNHS was performed and were referred to a Hearing Health Center, between January and June 2021. Infants who completed hearing assessment, who never attended the appointments, or were lost during the diagnostic process were identified. Attempts were made to contact infants' guardians in order to understand the reason for missing the appointments. Results The attendance to the diagnosis was 75%. Fifty percent of the infants completed hearing assessment as recommended, up to 3 months of life. The attempt to contact parents who missed the appointments was successful, and the most frequent reasons are: the infant was ill on the day of scheduled appointment, distance from home to the hearing health center, parents' working hours. Conclusion For the diagnostic stage, the attendance rate and the age for completing hearing assessment were below the recommended. The active search for telephone contact and use of phone messaging application was important to reduce evasion by seventy-six percent. Tools that optimize the diagnostic process with less infants missing still must be studied.

Presencia de dientes natales o neonatales en pacientes pediátricos con y sin labio y paladar hendido / Presence of natal or neonatal teeth in pediatric patients with and without cleft lip and palate

Objetivo: determinar la presencia de dientes natales y neonatales en pacientes pediátricos con/sin labio y paladar hendido, que han sido atendidos en un hospital de tercer nivel de 2019-2020, mediante la revisión de expedientes clínicos. Métodos: estudio retrospectivo, observacional descriptivo y revisión de expedientes de pacientes atendidos de 2019-2020. Resultados: en el hospital de tercer nivel se reportan 15 nacimientos por día, 5475 al año. De estos, se identificaron 110 bebés con dientes natales revisados en cuneros, 84 pacientes con labio y paladar hendido en consulta, con una relación de 1:50, mayor prevalencia en dientes inferiores centrales. Su manejo fue resuelto con extracciones en todos los casos, debido a la movilidad dental y el riesgo potencial en la alimentación por bronco aspiración del paciente. Conclusiones: los dientes neonatales y natales se encontraron con mayor frecuencia en pacientes de unidades de tercer nivel consultadas, posiblemente por ser centros de referencia. Se identificó confusión en el personal de salud respecto a la nomenclatura de los dientes que presentan los pacientes al nacer (dientes neonatales), además, se encontró una alta frecuencia de dientes natales en los pacientes estudiados en este caso. La relevancia se encuentra en que no hay estudios que definan la razón del porqué los pacientes nacen con dientes. La respuesta puede estar relacionada con un factor hormonal de la madre, aunque no se ha encontrado evidencia sobre esto. Mientras que los dientes neonatales

Objective: To determine the presence of natal and neonatal teeth in pediatric patients with/without cleft lip and palate who have been seen in a tertiary hospital from 2019-2020, by reviewing clinical records. Methods: Retrospective, descriptive observational study and review of patient records from 2019-2020. Results: In the third level hospital 15 births are reported per day, 5475 per year. Of these, 110 babies with natal teeth were identified in the nursery, 84 patients with cleft lip and palate were identified in consultation, with a ratio of 1:50, with a higher prevalence in lower central teeth. Their management was solved with extractions in all cases, due to tooth mobility and the potential risk in feeding by bronchial aspiration of the patient. Conclusions: Neonatal and natal teeth were found more frequently in patients in the tertiary level units consulted, possibly because they were referral centers. Confusion was identified among health personnel regarding the nomenclature of the teeth that patients present at birth (neonatal teeth), and a high frequency of natal teeth was found in the patients studied in this case. The relevance lies in the fact that there are no studies that define the reason why patients are born with teeth. The answer may be related to a hormonal factor of the mother, although no evidence on this has been found. While neonatal teeth occurred less frequently, there are no conclusive studies either.

Neonatos en las emergencias pediátricas. Estudio comparativo de las Bronquiolitis con otras patologías neonatales que requirieron hospitalización

Introducción: La bronquiolitis en una infección viral de las vías respiratoria y la causa más frecuente de hospitalización de los lactantes menores El objetivo del estudio fue comparar las características clínicas, socioeconómicas y la evolución de neonatos ingresados por bronquiolitis (BR), con aquellos que ingresaron por otras patologías. (0P) Material y método : estudio observacional descriptivo. Fueron incluidos neonatos con diagnóstico de BR y aquellos que ingresaron por OP Variables: edad postnatal, antecedentes sexo, motivo de ingreso, comorbilidades, ingreso a la unidad de cuidados intensivos pediátricos (UCIP) , días de hospitalización, estrato socioeconómico, presencia de atopia familiar y exposición ambiental al humo. Los datos fueron analizados en SPSS Resultados: ingresaron al estudio 75 neonatos con BR y 86 ingresados OP .El 45% de los neonatos con BR ingresaron por riesgo social, y el 38,4% de los neonatos con OP por sospecha de sepsis neonatal tardía.Los neonatos con BR tenían mayor edad postnatal; 21 días, vs 8,5 p=0,001, procedían de zonas urbanas en el 98,6% vs 79% p=0,001 y las madres tenían menor edad 23 años vs 25 años respectivamente p=0,01. Además, presentaron mayor frecuencia de exposición al humo ambiental. (p=0,01) y menor frecuencia de comorbilidades (p=0,03) Ningún paciente con BR ingreso a la UCIP vs 3,5% en el grupo de neonatos con OP. Conclusiones: Los neonatos con BR, tenían mayor edad, procedían de zonas urbanas, menor comorbilidades, sus madres eran más jóvenes y tenían mayor exposición al humo ambiental. La mayoría fueron cuadros leves de BR

Introduction : Bronchiolitis in a viral infection of the respiratory tract and the most frequent cause of hospitalization of young infants The objective of the study was to compare the clinical, socioeconomic characteristics and the evolution of neonates admitted for bronchiolitis (BR), with those admitted for other pathologies. (0P) Material and method : descriptive observational study. Neonates diagnosed with BR and those admitted for OP were included: Variables: postnatal age, sex, reason for admission, comorbidities, admission to the pediatric intensive care unit (PICU), days of hospitalization, socioeconomic stratum, presence of familial atopy and environmental exposure to smoke. Data were analyzed in SPSS. Results: 75 infants with BR and 86 admitted OP entered the study. 45% of infants with BR were admitted for social risk, and 38.4% of infants with OP due to suspected late neonatal sepsis. Neonates with BR had higher postnatal age; 21 days, vs 8.5 p=0.001, came from urban areas in 98.6% vs. 79% p=0.001 and mothers were younger, 23 years vs. 25 years respectively p=0.01. In addition, they presented a higher frequency of exposure to environmental smoke. (p=0.01) and lower frequency of comorbidities (p=0.03) No patient with BR admission to the PICU vs 3.5% in the group of neonates with OP. Conclusions: Neonates with BR were older, came from urban areas, had fewer comorbidities, their mothers were younger, and they had greater exposure to environmental smoke. Most cases were mild BR.

Evaluación de la antropometría en neonatos sanos. No todas las medidas son relevantes / Anthropometry assesment in healthy neonates. Not all measurements are relevant

Resumen Las medidas antropométricas se han usado para evaluar el crecimiento fetal y neonatal, además de determinar factores de riesgo de forma temprana. Clásicamente se han tomado el peso, talla, perímetro cefálico, torácico y abdominal. Son usadas para establecer condiciones como peso bajo o elevado para la edad gestacional, y con base en esto poder definir riesgos tempranos y tardíos. Otra medida sumamente importante es el perímetro cefálico, misma que determina neonatos con potencial riesgo neurológico. Estas tres medidas son clave como parte de la evaluación inicial neonatal, además de que se incluyen en el seguimiento del crecimiento y desarrollo infantil. No obstante, otras mediciones rutinarias como el perímetro torácico y abdominal, en neonatos con adaptación espontánea y exploración física normal (neonatos sanos), puede que aporten poco acerca del estado de salud neonatal. Estas últimas medidas no forman parte de los parámetros de seguimiento del crecimiento infantil, ni cuentan con gráficas de percentiles extrapolables para género y edad gestacional. Todas estas medidas están condicionadas por múltiples factores como genética, raza y nutrición, entre otros. Es momento de analizar las medidas rutinarias al momento del nacimiento de neonatos sanos, y priorizar las extrapolables a implicaciones clínicas relevantes.

Abstract Anthropometric measurements are used to assess fetal and neonatal growth and determine early risk factors. Classically, weight, height, head circumference, thoracic and abdominal circumference are the usual measures. They are used to identify conditions such as low or high weight for gestational age and, based on this, to determine early and late risks. Another important measurement is head circumference, which determines neonates with potential neurological risk. These three measures are key as part of the initial neonatal evaluation, and they are also a part of the child's growth monitoring and development. However, other routine measurements such as chest and abdominal circumferences, in newborns with spontaneous adaptation and normal physical examination (healthy neonates) may provide little information about the neonatal health status. These last measurements are not part of the child growth monitoring parameters, nor do they have percentile graphs that can be extrapolated to gender and gestational age. All these measures are conditioned by multiple factors such as genetics, race, and nutrition, among others. It is time to analyze routine measures at the time of birth of healthy newborns and prioritize those that can be extrapolated to relevant clinical implications.

Rapid syndromic molecular testing and human parechovirus infection in children: A report of three cases in Argentina / Diagnóstico molecular sindrómico rápido e infección por parechovirus humano en ninos: reporte de 3 casos en Argentina

Abstract Human parechovirus (HPeV) is one of the members of the family Picornaviridae that has been associated with fever of unknown origin, gastroenteritis, clinical sepsis, meningitis, orencephalitis in very young infants. HPeV detection is not routinely performed in most clinical microbiology laboratories in Argentina and, therefore, its real prevalence is unknown. We here report three cases of HPeV CNS infection that presented to our hospital with different clinical features after the implementation of a multiplex PCR meningitis/encephalitis panel. Molecular diagnostic techniques could help improve patient care and understand the real prevalence of this infection in Argentina.

Resumen Los parechovirus humanos (HPeV) son virus de la familia Picornaviridae, que se han asociado a diferentes cuadros clínicos, como fiebre de origen desconocido, gastroenteritis, sepsis, meningitis o encefalitis en ninos pequeños. Su detección no está disponible de rutina en la mayoría de los laboratorios de nuestro país, por lo que su prevalencia es desconocida. Reportamos 3 casos de infección del sistema nervioso central por HPeV con diferentes características clínicas, que se presentaron luego de la implementación de un panel molecular para el diagnóstico sindrómico de meningitis/encefalitis. Las técnicas de diagnóstico molecular podrían ayudar a mejorar el abordaje y el cuidado de estos pacientes, así como también a conocer la prevalencia de esta infección en Argentina.

Repercusiones de la alimentación temprana en la lactancia materna exclusiva / Impact of early initiation of breastfeeding on exclusive breastfeeding

Resumen OBJETIVO: Comparar el efecto de la alimentación temprana y su repercusión en la lactancia materna exclusiva con los cuidados neonatales convencionales en un hospital privado. MATERIALES Y MÉTODOS: Estudio comparativo, observacional, de cohortes, prospectivo y analítico llevado a cabo en el Hospital Ángeles de Querétaro de abril 2015 a octubre de 2021. Criterios de inclusión: madres con periodos intraparto y posparto inmediato, cualquier vía de nacimiento y aplicación o no de anestesia y neonatos de uno y otro sexo, de término, sin patología neonatal o malformaciones congénitas, Apgar a los 5 minutos más o menos mayor a 7 y peso mayor de 2500 g. Criterios de exclusión: embarazos múltiples, recién nacidos con algún padecimiento después del nacimiento o condiciones que impidieron la lactancia. Para la comparación entre grupos de las variables cualitativas se aplicó la prueba de χ2 y, en su caso, corrección de Yates con estimaciones de riesgo. RESULTADOS: Se analizaron 1175 madres de las que 687 (58.4%) recién nacidos tomaron lactancia exclusiva y 488 (41.6%) no lo hicieron. Las características clínicas y sociodemográficas entre los dos grupos de comparación fueron similares. Sobresalió que las madres y neonatos que lograron lactancia materna exclusiva exitosa fueron los del grupo de alimentación temprana en comparación con quienes no la hicieron (91.9 vs 52.6%; p < 0.001, RR 4.85, IC95%: 3.80-6.18). CONCLUSIONES: La alimentación temprana, en la primera hora de vida, tiene un efecto benéfico, protector y positivo en la lactancia exclusiva, incluso de hasta casi cinco veces más que cuando no se consigue.

Abstract OBJECTIVE: To compare the effect of early feeding and its impact on exclusive breastfeeding with conventional neonatal care in a private hospital. MATERIALS AND METHODS: Comparative, observational, cohort, prospective and analytical study conducted at the Hospital Ángeles de Querétaro from April 2015 to October 2021. Inclusion criteria: mothers with intrapartum and immediate postpartum periods, any birth route and application or not of anesthesia and neonates of either sex, term, without neonatal pathology or congenital malformations, Apgar at 5 minutes plus or minus greater than 7 and weight greater than 2500g. Exclusion criteria: multiple pregnancies, newborns with any condition after birth or conditions that prevented breastfeeding. For the comparison between groups of qualitative variables, the 2's test was applied and, if necessary, Yates' correction with risk estimates. RESULTS: We analyzed 1175 mothers of whom 687 (58.4%) newborns were exclusively breastfed and 488 (41.6%) were not. The clinical and sociodemographic characteristics between the two comparison groups were similar. It stood out that mothers and infants who achieved successful exclusive breastfeeding were those in the early feeding group compared to those who did not (91.9 vs 52.6%; p < 0.001, RR 4.85, 95%CI: 3.80-6.18). CONCLUSIONS: Early feeding, in the first hour of life, has a beneficial, protective and positive effect on exclusive breastfeeding even up to almost five times more than when it is not achieved.

Endoftalmitis neonatal secundaria a sepsis neonatal temprana: reporte de caso / Endogenous neonatal endophthalmitis as a complication of early neonatal sepsis: Case report

Introducción: La endoftalmitis neonatal endógena es una complicación rara de la sepsis neonatal que puede llevar a ceguera. Un diagnóstico temprano y un tratamiento agresivo son esenciales para evitar la pérdida visual a largo plazo. Caso: Recién nacido pretérmino con endoftalmitis endógena como complicación tardía de una sepsis neonatal temprana, por deterioro clínico generalizado y persistencia de signos oftalmológicos. Se consideró vitrectomía posterior más antibiótico intravítreo de vancomicina y ceftazidima durante la infusión. A pesar de presentar cultivos negativos, posterior al procedimiento presentó mejoría clínica significativa al fondo de ojo y sistémica. Discusión: En los recién nacidos con sepsis neonatal, especialmente los pretérmino con bajo peso al nacer o con infección por microorganismos multirresistentes (que complican el tratamiento sistémico y aumentan el riesgo de diseminación endógena), debe considerarse la endoftalmitis endógena. La sospecha clínica y la adecuada aproximación diagnóstica de forma temprana, aun con cultivos negativos, permite mejorar el pronóstico visual, como en el caso presentado.

Background: Endogenous neonatal endophthalmitis is an uncommon complication of neonatal sepsis, that can lead to blindness. Early diagnosis and aggressive treatment are essential to avoid long-term visual loss. Case: Pre-term newborn with endogenous endophthalmitis as a late complication of early neonatal sepsis, with negative cultures, but with generalized clinical deterioration and persistence of ophthalmological signs, therefore a posterior vitrectomy plus intravitreal vancomycin and ceftazidime infusion was required. After the procedure, the patient presented significant clinical improvement, at the ophthalmological exam as well as systemically. Discussion: Endogenous endophthalmitis should be considered in newborns with neonatal sepsis, especially preterm babies with low birth weight or with infection by multidrug-resistant microorganisms, which complicate systemic treatment and increase the risk of endogenous dissemination. Clinical suspicion and an adequate early diagnostic approach, even with negative cultures, could improve the visual prognosis, as in the case presented.

Risk factors related to the appearance of umbilical disorders in dairy calves / [Fatores de risco relacionados ao surgimento de afecções umbilicais em bezerros leiteiros]

The objective of this study was to determine the types of calve housing used in dairy farms, the prevalence of umbilical disorders and related risk factors. The 16 farms studied were visited to characterize the types of installation and possible risk factors, as well as information obtained from a questionnaire applied to the farmers. 806 Holstein calves were physically examined, in addition to collecting blood samples for the evaluation of Failures in Passive Immunity Transfer (FPIT), in animals that manifested inflammatory omphalopathies, and were also submitted to ultrasound examination. The prevalence of omphalopathies was assessed by Fisher's test, and multivariate logistic regression to assess risk factors. Eight types of installation were found: tropical house, suspended cage, collective stall, collective picket, Argentinean type, single-story cage, individual stall, and collective picket with chain. Omphalopathies accounted for 6.45% of the calves. Small size farms (up to 99 lactation cows) had high risk for umbilical disorders, ground floor collective calves, without side protection, with sand floor, in closed sheds and without heatstroke were considered risk factors for omphalopathies. Adequate colostrum and umbilical antisepsis are not associated with disease, its appearance being related to the housing conditions of the animals.(AU)

O objetivo deste estudo foi determinar os tipos de alojamento para bezerros leiteiros, a prevalência de onfalopatias e os fatores de risco relacionados. As 16 fazendas estudadas foram visitadas buscando-se caracterizar os tipos de instalação e os possíveis fatores de risco, além de informações obtidas de um questionário aplicado aos fazendeiros. Foram examinados fisicamente 806 bezerros da raça Holandesa, além da coleta de amostras de sangue, para avaliação da falha de transferência de imunidade passiva (FTIP), nos animais que manifestaram onfalopatias inflamatórias, sendo submetidos também ao exame ultrassonográfico. A prevalência das onfalopatias foi avaliada por teste de Fisher, e foi feita regressão logística multivariada a fim de se avaliarem os fatores de risco. Verificou-se oito tipos de instalação: casinha tropical, gaiola suspensa, baia coletiva, piquete coletivo, bezerreiro tipo argentino, gaiola térrea, baia individual e piquete coletivo com corrente. As onfalopatias corresponderam a 6,45% dos bezerros. Os bezerreiros coletivos térreos, sem proteções laterais, com piso de areia, borracha, concreto ou madeira, em galpões fechados, sem insolação, com alta densidade animal, antissepsia umbilical realizada por três dias e FTIP acima de 50% foram considerados fatores de risco para onfalopatias e possuem relação com o bezerreiro, sendo decisivas para evitar essas condições a colostragem e a antissepsia umbilical adequadas.(AU)

Embarazadas con hisopado positivo para SARS-CoV-2: presentación clínica y evolución de la dupla madre-recién nacido de una población hospitalaria

RESUMEN Introducción: Durante la pandemia, todas las mujeres embarazadas fueron sometidas a hisopado nasofaríngeo para SARS-CoV-2. Objetivo: Describir las características clínicas y evolución de las embarazadas con estudio de PCR positivo para SARS-CoV-2 y sus recién nacidos en una población hospitalaria. Materiales y Métodos: Estudio observacional ambispectivo de seguimiento de una cohorte, en la maternidad del Instituto de Previsión Social entre marzo 01 de 2020 a mayo 31 de 2021. Participaron embarazadas del tercer trimestre ingresadas para parto, con resultado positivo para SARS-CoV-2. Variables: edad, síntomas, complicaciones del embarazo, clasificación de COVID-19, ingreso a terapia intensiva, antropometría neonatal, seguimiento de la dupla madre-neonato hasta los 7 días post parto. Datos analizados en SPSS utilizando estadísticas descriptivas. Protocolo aprobado por el comité de ética de la investigación. Resultados: Ingresaron 136 embarazadas y 139 neonatos (3 gemelares). El 78,6% sintomáticas, 8,1% presentó formas graves. El 10,3% presentó preeclampsia, el 10,3% ingresó a terapia intensiva y el 2,2% falleció. El 86,4% nació por cesárea, hubo 2 mortinatos. El 29,2% fue pretérmino, el 18,2% de bajo peso de nacimiento, 24,8% fue hospitalizado Fallecieron 3/137 antes de los 7 días. El hisopado neonatal fue positivo en 3. El 78 % se alimentó con pecho materno. Conclusión: El 15,5% de embarazadas positivas ingresaron con formas moderada a grave, de COVID 19, el 10,3% ingresó a UTI y 3 fallecieron. El porcentaje de cesárea, prematuridad y hospitalización neonatal fue muy elevado. Hubo 2 mortinatos y el 2,9% de los nacidos vivos fallecieron. El hisopado neonatal fue positivo en el 2,2%.

ABSTRACT Introduction: During the pandemic, all pregnant women underwent a nasopharyngeal swab for SARS-CoV-2. Objective: To describe the clinical characteristics and evolution of pregnant women with a positive PCR study for SARS-CoV-2 and their newborns in a hospital population. Materials and methods: This was an ambispective observational, cohort follow-up study, in the maternity ward of the Social Security Institute Hospital between March 01, 2020 to May 31, 2021. Third trimester pregnant women admitted for delivery, with a positive result for SARS-CoV-2, were included. Variables: age, symptoms, pregnancy complications, COVID-19 classification, admission to intensive care, neonatal anthropometry, follow-up of the mother-neonate pair up to 7 days postpartum. The data was analyzed in SPSS using descriptive statistics. The protocol was approved by the research ethics committee. Results: 136 pregnant women and 139 newborns (3 twins) were admitted. 78.6% were symptomatic, 8.1% had severe forms. 10.3% presented pre-eclampsia, 10.3% entered intensive care and 2.2% died. 86.4% were born by cesarean section, there were 2 stillbirths. 29.2% were preterm, 18.2% had low birth weight, 24.8% were hospitalized. 3/137 died before 7 days of age. The neonatal swab was positive in 3. 78% were breastfed. Conclusions: 15.5% of positive pregnant women were admitted with moderate to severe forms of COVID 19, 10.3% were admitted to the ICU and 3 died. The percentage of caesarean section, prematurity and neonatal hospitalization was very high. There were 2 stillbirths and 2.9% of live births died. The neonatal swab was positive in 2.2%.

Doença do refluxo gastroesofágico em lactentes que apresentaram Eventos Resolvidos Breves Não Explicados - Brief Resolved Unexplained Event (BRUE) / Gastroesophageal reflux disease in infants who presented brief resolved unexplained event (brue)

ABSTRACT BACKGROUND: The term brief resolved unexplained events (BRUE) is a description of the acute event occurring in infants less than 1-year-old that includes at least one of the following characteristics: cyanosis or pallor; absent, decreased, or irregular breathing; marked change in tone or altered level of responsiveness. An investigative proceeding is required to identify the triggering phenomenon in those who are at high risk of complications. Prolonged esophageal pHmetry has been used as a tool in searching for gastroesophageal reflux disease (GERD) as one of the underlying etiologies. OBJECTIVE: The study aims to verify the frequency of GERD in infants up to 1-year-old, when pHmetry has been performed for investigating high-risk BRUE (HR-BRUE) and to analyze if clinical characteristics or any particular symptom related by caregivers during BRUE could be correlated to GERD. METHODS: It was performed a cross-sectional study. The data was collected retrospectively of patients less than 1-year-old, who had performed pHmetry in a tertiary hospital for investigating HR-BRUE between October 2008 and January 2018. For the analysis of medical records, a data collection protocol included: gender, age at the first HR-BRUE episode, age at the time of the pHmetry, gestational age, type of delivery (normal or caesarean) and birth weight and symptoms associated to HR-BRUE related by caregivers. Relation between variables were assessed using Fisher's exact test and Mann-Whitney test. The significance level was set at 0.05. RESULTS: A total of 54 infants were included (preterm 25, term 29), 62.9% males, median age at the HR-BRUE was 36 days, 53.7% HR-BRUE episodes had occurred during or right after feeding. According to pHmetry results: nine pHmetry results were considered inconclusive, physiological reflux (n=30) and GERD (n=15). The frequency of GERD diagnosed by pHmetry was 33%. GERD was not statistically related to gender (P-value=0.757), age at first HR-BRUE episode (P-value=0.960), age at the time of the pHmetry (P-value=0.720), prematurity (P-value=0.120) or type of delivery (P-value=0.738). GERD was statistically related to low birth weight (P-value=0.023). There was no association between symptoms reported by caregivers during HR-BRUE and GERD. CONCLUSION: GERD diagnosed by the pHmetry was found in one third of infants that experiencing a HR-BRUE, showing the importance of properly investigation. In half of infants BRUE occurred during or right after feeding. Besides low birth weight, it was not possible to select other data from the clinical history that suggest that these patients would be more likely to have GERD.

RESUMO CONTEXTO: O termo Eventos Resolvidos Breves Não Explicados (Brief Resolved Unexplained Event - BRUE) é uma descrição do evento agudo que ocorre em lactentes menores de 1 ano de idade que inclui pelo menos uma das seguintes características: cianose ou palidez; respiração ausente, diminuída ou irregular, alteração acentuada no tônus ou nível alterado de responsividade. É necessário um procedimento investigativo para identificar o fenômeno desencadeante naqueles que apresentam alto risco de complicações. A pHmetria esofágica prolongada tem sido usada como uma ferramenta na pesquisa de doença do refluxo gastroesofágico (DRGE) como uma das etiologias subjacentes. OBJETIVO: Este estudo tem como objetivo verificar a frequência da DRGE em lactentes de até 1 ano de idade, quando a pHmetria foi realizada para investigação da BRUE de alto risco, e analisar se alguma característica clínica ou sintoma particular relatado pelos cuidadores durante a BRUE poderia estar correlacionado a DRGE. MÉTODOS: Foi realizado um estudo observacional, transversal, cujos dados foram coletados retrospectivamente de pacientes menores de 1 ano de idade, que realizaram pHmetria em hospital terciário para investigação de BRUE de alto risco de outubro de 2008 e janeiro de 2018. Para a análise dos prontuários, um protocolo de coleta de dados incluiu: sexo, idade no primeiro episódio de BRUE de alto risco, idade no momento da pHmetria, idade gestacional, tipo de parto (normal ou cesárea), peso ao nascer e sintomas associados a alto risco-BRUE relatado por cuidadores. A relação entre as variáveis foi avaliada por meio do teste exato de Fisher, qui-quadrado e teste de Mann-Whitney. O nível de significância foi estabelecido em 0,05. RESULTADOS: Foram incluídos 54 lactentes (pré-termo 25, termo 29), 62,9% do sexo masculino, idade mediana na BRUE de alto risco foi de 36 dias. De acordo com o relatório do cuidador, 53,7% dos episódios de BRUE de alto risco ocorreram durante ou logo após a alimentação. Resultados da pHmetria: nove resultados da pHmetria foram considerados inconclusivos, refluxo fisiológico (n=30) e DRGE (n=15). A frequência de DRGE diagnosticada por pHmetria foi de 33%. A DRGE não foi estatisticamente relacionada ao sexo (P=0,757), idade no primeiro episódio de BRUE de alto risco (P=0,96), idade no momento da pHmetria (P=0,72) prematuridade (P=0,321) ou tipo de parto (P=0,738). A DRGE foi estatisticamente relacionada ao baixo peso ao nascer (P=0,023). Não houve associação entre os sintomas relatados pelos cuidadores durante BRUE de alto risco e o diagnóstico de DRGE. CONCLUSÃO: A DRGE diagnosticada pela pHmetria foi encontrada em um terço dos lactentes que vivenciaram BRUE de alto risco, mostrando a importância da investigação adequada. Em metade das crianças, o evento ocorreu durante ou logo após a alimentação. Além do baixo peso ao nascer, não foi possível selecionar outros dados da história clínica que sugiram que esses pacientes terão maior probabilidade de apresentar DRGE.

Right ventricular anatomical and functional parameters in healthy Mexican term newborns / Parámetros anatómicos y funcionales del ventrículo derecho en recién nacidos Mexicanos sanos

Abstract Objective: Right ventricle (RV) function plays an important role during fetal and neonatal transitional circulation. Despite the published echocardiography guidelines in children including neonates, there is scare evidence on RV assessment using echocardiography in Mexican neonates. This study was aimed at assessing RV function and anatomical measures in healthy term newborns and defines normal values in this cohort of patients. Methods: A prospective study involving healthy term newborns in a single center were enrolled in the study to assess RV, all patients were recruited within 24-72 h after birth. The right ventricular assessment was performed as per American Society of Echocardiography's guidelines. Results: Seventy healthy term newborns with a median gestational age of 38 (38.5 ± 2.7) weeks had RV function assessment and anatomical structures measures with a predefined ten echocardiographic parameters protocol. The mean values for: tricuspid valve diameter was 13 mm ± 1.8, basal diameter of the RV 16.7 mm ± 2, RV length 27.8 mm ± 2.2, mid cavity diameter 14.3 mm ± 1.7, RV-anteroinferior basal diameter 21.5 mm ± 2.5, tricuspid regurgitation gradient 13.3 mmHg ± 5.9, tricuspid annular plane systolic excursion 8.7 mm, right ventricular fractional area change (RVFAC) 4 chamber (%) 40.6 ± 7.5, tricuspid E/A 0.7 ± 0.5, myocardial velocities (cm/s) E´ 8 ± 2.7, A´ 9.6 ± 2.4, S´ 6.9 ± 1.2, myocardial performance index 0.5 ± 0.1, RVFAC 3 chamber (%) 37.8 ± 15.8, and pulmonary acceleration time mean value 58.8 ± 14.9. Flattening of interventricular septum was seen in 13% infants. Conclusions: This study describes echocardiographic parameters for anatomical structures and assessment of RV function in healthy term newborns during transitional circulation. We reported novel anatomical measures of the RV; this information can provide normal reference range values and be referenced while assessing RV function in normal and sick newborns during transitional circulation.

Resumen Objetivo: Realizar una valoración ecocardiográfica de parámetros anatómicos y funcionales del ventrículo derecho (VD) en recién nacidos de término (RNT) sanos durante el periodo transicional. Método: Estudio prospectivo en RNT sanos de la Unidad de Cuidados Intensivos Neonatales del Hospital Español. Todos los pacientes fueron estudiados en las primeras 24-72 horas de vida, con base en las guías de la American Society of Echocardiography. Resultados: Se estudiaron 70 RNT sanos con una media de edad gestacional de 38 semanas de gestación (38.5 ± 2.7); en estos pacientes se obtuvieron 10 parámetros ecocardiográficos. El valor medio obtenido para la válvula tricúspide fue de 13 ± 1.8 mm, diámetro basal del VD 16.7 ± 2 mm, longitud 27.8 ± 2.2 mm, cavidad media del VD 14.3 ± 1.7 mm, diámetro basal anteroinferior 21.5 ± 2.5 mm, gradiente de insuficiencia tricuspídea 13.3 ± 5.9 mmHg, tricuspid annular plane systolic excursion (TAPSE) 8.7 mm, Fracción de acortamiento del VD (FAVD) 4 cámaras (%) 40.6 ± 7.5, E/A tricuspídeo 0.7 ± 0.5, velocidades miocárdicas (cm/s) E´ 8 ± 2.7, A´ 9.6 ± 2.4, S´ 6.9 ± 1.2, índice de rendimiento miocárdico 0.5 ± 0.1, FAVD 3 cámaras (%) 37.8 ± 15.8, tiempo de aceleración pulmonar 58.8 ± 14.9. Conclusiones: Este estudio describe parámetros anatómicos y funcionales del VD en RNT sanos durante el periodo de transición. Se reportan valores de normalidad que pueden servir como referencia.

Delta de hemoglobina materna entre el primer y tercer trimestre como factor de riesgo para bajo peso al nacer: Un estudio de cohorte / Maternal Delta Hemoglobin between the First and Third Trimesters as a Risk Factor for Low Birth Weight: A Cohort Study

Objetivo: El presente estudio se centró en determinar si la diferencia de hemoglobina del tercer y el primer trimestre de gestación mayor de ­ 1 (Delta de hemoglobina disminuido) es un factor de riesgo para el bajo peso al nacer en recién nacidos a término en el Hospital Belén de Trujillo. Material y métodos: Estudio de cohorte histórica. Se realizó un estudio de cohorte retrospectiva donde se incluyeron 218 neonatos, de acuerdo con los criterios de selección, los cuales fueron divididos en dos grupos: pacientes con delta de hemoglobina materna disminuida y no disminuida: aplicando el riesgo relativo y el test estadístico de chi-cuadrado. Resultados: La frecuencia de neonatos con bajo peso al nacer en mujeres embarazadas con delta de hemoglobina disminuida fue de 32/109 = 29 %; la frecuencia de bajo peso al nacer en las mujeres embarazadas con delta de hemoglobina no disminuida fue de 18/109 = 17 %. La delta de hemoglobina materna disminuida es un factor de riesgo para el bajo peso al nacer con un riesgo relativo de 1.78 [IC: 95 % (1.45 ­ 3.56) p < 0.05]. Conclusiones: La delta de hemoglobina materna disminuida es un factor de riesgo para el bajo peso al nacer en recién nacidos a término en el Hospital Belén de Trujillo.

Objetive:The present study focused on determining if the hemoglobin difference of the third and first trimester of gestation greater than - 1 (decreased hemoglobin delta) is a risk factor for low birth weight in term newborns at Hospital Belen from Trujillo. We performed a retrospective cohort study in Material and Methods: which 218 newborns were included according to the selection criteria. The patients were divided into two group of patients with decreased and non-decreased maternal hemoglobin delta: applying the relative risk and the statistical chi test-square. The frequency of low birth weight in pregnant women with Results:decreased hemoglobin delta was 32/109 = 29%; the frequency of low birth weight in pregnant women with undiminished delta hemoglobin was 18/109 = 17%. Declined maternal hemoglobin delta is a risk factor for low birth weight with a relative risk of 1.78 [CI: 95% (1.45 - 3.56) p <0.05].The decreased maternal Conclusions:hemoglobin delta is a risk factor for low birth weight in newborns at Hospital Belen de Trujillo.

Uso de VAC en neonatos / Use of VAC in neonates

El objetivo de este trabajo es normatizar el uso de la terapia de presión negativa de heridas complejas en neonatos. La iniciativa surge a partir de la negativa de nuestros proveedores locales de proporcionarnos el material del sistema VAC (cicatrización asistida por vacío), por temor a las posibles complicaciones por su uso en neonatos y escasa bibliografía al respecto. Se presentan 2 casos tratados en neonatos entre 2018 y 2021, y se acompaña de revisión bibliográfica encontrada, de diferente etiología. Con las conclusiones obtenidas, se pretende establecer al VAC como una herramienta terapéutica eficaz en neonatos, de igual manera que se aplica, en toda herida compleja que lo requiera, sin importar la edad del paciente

The goal of this work is to standardize the use of negative pressure therapy for complex wounds in newborns. The initiative arises from the refusal of our local suppliers to provide us with the VAC (vacuum-assisted healing) system material, for fear of possible complications from its use in newborns and little literature about it. There are 2 cases treated in neonates between 2018 and 2021, and it is accompanied by found bibliographic review of different etiology. With the conclusions obtained, it is intended to establish the VAC as an effective therapeutic tool in neonates, just as it is applied, in any complex wound that requires it, regardless of the age of the patient