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INTRODUCTION: We investigated whether structured maternal lifestyle interventions based on Mediterranean diet or stress reduction influence fetal-infant neurodevelopment detected by detailed fetal neurosonography and Ages and Stages Questionnaires 3rd edition (ASQ) at 12months old. METHODS: This was a secondary analysis of a randomized clinical trial (2017-2020) including 1,221 singleton pregnancies at high-risk for small-for-gestational age. Participants were randomized into three groups at 19-23 weeks' gestation: Mediterranean diet intervention, stress reduction program or usual care. A detailed neurosonography was performed on 881 participants at mean(SD) 33.4(1.1) weeks' gestation. Neurosonographic measurements were done offline. ASQ was performed on 276 infants at one year of corrected age. RESULTS: Biparietal diameter were similar among study groups. Mediterranean diet group fetuses had deeper insula [26.80(1.68) vs. 26.63(1.75), mm, p=0.02] and longer corpus callosum [42.98 (2.44) vs. 42.62(2.27), mm, p=0.04], with lower rate of suboptimal score infants in ASQ problem-solving domain (6.2% vs. 16.3%, p=0.03); Stress reduction group fetuses had deeper insula [26.90(1.75) vs. 26.63(1.75), mm, p=0.04] and lower rates of suboptimal score infants in ASQ fine motor domain (4.3% vs. 12.8%, p=0.04), compared to usual care group fetuses. CONCLUSION: Maternal structured intervention during pregnancy of the trial has the potential to modify offspring's neurodevelopment.
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AIM: To describe the trends in the delivery room approach and survival of extremely premature infants over the past two decades. METHODS: Time-series analysis of infants included in the Spanish SEN1500 network from 2004 to 2019. Patients born from 22 + 0 to 26 + 6 weeks were included. The primary outcome was an active approach in the delivery room. Survival and temporal trends were also studied. RESULTS: The study population included 8284 patients. At 22 and 23 weeks, an active approach was followed in 41.4% and 80.8%. A temporal trend toward a more active approach was observed at 23 weeks. Antenatal steroids were administered in 19.6% and 58.1% at 22 and 23 weeks. From 24 weeks, an active approach was applied in nearly all cases throughout the period, and more than 80% of patients received antenatal steroids. The rates of survival after an active approach were 8.7%, 21.6%, 40.6%, 59.9%, and 74.7% at 22, 23, 24, 25, and 26 weeks and significantly increased over the period, except for infants born at 22 weeks. CONCLUSION: Active management and survival of infants born from 23 weeks increased over the period, but the frequency of antenatal steroid administration was lower than the intention to resuscitate.
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Salas de Parto , Recien Nacido Extremadamente Prematuro , Recién Nacido , Humanos , Lactante , Embarazo , Femenino , España/epidemiología , Edad Gestacional , Mortalidad Infantil , EsteroidesRESUMEN
Kagami-Ogata syndrome (KOS14) is a rare congenital disorder associated with defective genomic imprinting of the chromosome 14q32 domain. Typical features include polyhydramnios, small and bell-shaped thorax, coat-hanger ribs, dysmorphic facial features, abdominal wall defects, placentomegaly, severe postnatal respiratory distress and intellectual disability. To the best of our knowledge, this may be the first case where ultrasound findings such as: severe polyhydramnios, a small bell-shaped thorax, a protuberant abdomen and characteristic dysmorphic face prompted directed family interrogation finally leading to the prenatal diagnosis of KOS14.
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Diagnóstico Prenatal , Disomía Uniparental/diagnóstico , Cromosomas Humanos Par 14/genética , Femenino , Impresión Genómica , Humanos , Discapacidad Intelectual/complicaciones , Masculino , Embarazo , Ultrasonografía Prenatal , Disomía Uniparental/genéticaRESUMEN
BACKGROUND: There is evidence that delivery room resuscitation of very preterm infants often deviates from internationally recommended guidelines. There were no published data in Spain regarding the quality of neonatal resuscitation. Therefore, we decided to evaluate resuscitation team adherence to neonatal resuscitation guidelines after birth in very preterm infants. METHODS: We conducted an observational study. We video recorded resuscitations of preterm infants < 32 weeks' gestational age and evaluated every step during resuscitation according to a score-sheet specifically designed for this purpose, following Carbine's method, where higher scores indicated that more intense resuscitation maneuvers were required. We divided the score achieved by the total possible points per patient to obtain the percentage of adherence to the algorithm. We also compared resuscitations performed by staff neonatologists to those performed by pediatricians on-call. We compared percentages of adherence to the algorithm with the Chi-square test for large groups and Fisher's exact test for smaller groups. We compared assigned Apgar scores with those given after analyzing the recordings and described them by their median and interquartile range. We measured the interrater agreement between Apgar scores with Cohen's kappa coefficient. Linear and logarithmic regressions were drawn to characterize the pattern of algorithm adherence. Statistical analysis was performed using SPSS V.20. A p-value < 0.05 was considered significant. Our Hospital Ethics Committee approved this project, and we obtained parental written consent beforehand. RESULTS: Sixteen percent of our resuscitations followed the algorithm. The number of mistakes per resuscitation was low. Global adherence to the algorithm was 80.9%. Ventilation and surfactant administration were performed best, whereas preparation and initial steps were done with worse adherence to the algorithm. Intubation required, on average, 2.2 attempts; success on the first attempt happened in 33.3% of cases. Only 12.5% of intubations were achieved within the allotted 30 s. Many errors were attributable to timing. Resuscitations led by pediatricians on-call were performed as correctly as those by staff neonatologists. CONCLUSIONS: Resuscitation often deviates from the internationally recognized algorithm. Perfectly performed resuscitations are infrequent, although global adherence to the algorithm is high. Neonatologists and pediatricians need intubation training.
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Algoritmos , Adhesión a Directriz , Recien Nacido Prematuro , Resucitación/métodos , Resucitación/normas , Centros de Atención Terciaria/normas , Humanos , Recién Nacido , Guías de Práctica Clínica como Asunto , España , Grabación en VideoRESUMEN
Human milk adipokines in term babies seem partially determined by maternal factors and affect infant's development. We aimed to describe bioactive peptide concentration in very preterm human milk and associations to maternal characteristics and postnatal growth. Mothers delivering ≤32 weeks of gestation and their infant/s were recruited. At 4 weeks of lactation, an aliquot of 24-h-pooled milk was collected for exclusively breastfeeding dyads. Insulin, leptin, adiponectin, and milk fat globule epidermal growth factor-8 (MFG-E8) were measured by enzyme-linked immunoabsorbent assay in skimmed milk. One hundred mothers (28.8 ± 2.3 weeks at delivery) provided a milk sample. Milk insulin was related to gestational age, pre-pregnancy body mass index (BMI), and galactagogue treatment (final model: adjusted R2 : 0.330, p < 0.0001; adjusted ß coefficients: galactagogue treatment: 0.348, p 0.001; pre-pregnancy BMI: 0.274, p 0.009; gestational age: -0.290, p 0.007). Adiponectin was higher in mothers with gestational diabetes (30.7 ± 6.5 vs. 24.8 ± 8 ng/mL, p 0.044). Leptin was associated with pre-pregnancy BMI (Spearman's ρ: 0.648, p < 0.0001) and MFG-E8 to presence of labor and multiple pregnancy (final linear regression model, R2 : 0.073, p 0.028, adjusted ß coefficients: presence of labor -0.229, p 0.050; twins: -0.192, p 0.099). Milk adiponectin was associated with a greater decrease in length z-scores from birth to 28 days (Pearson's r: -0.225, p 0.032) and to discharge (Pearson's r: -0.290, p 0.003). Milk MFG-E8 was lower in milk of mothers whose babies experienced late-onset sepsis (13.3 ± 5.8 vs. 16.8 ± 6.3 µg/mL, p 0.023). Adipokines levels in preterm human milk are partially related to maternal metabolic status. Milk peptide concentration associates with early neonatal growth trajectories.
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Galactogogos , Leche Humana , Recién Nacido , Femenino , Embarazo , Humanos , Lactante , Leche Humana/metabolismo , Leptina , Adiponectina/metabolismo , Insulina/metabolismo , Adipoquinas/metabolismoRESUMEN
INTRODUCTION: Our aim was to determine which foetal or neonatal growth curves discriminate the probability of dying of newborns with low birth weight for their gestational age (small for gestational age, SGA) and sex (weight < 10th percentile) and to establish the curves that are presumably most useful for monitoring growth through age 10 years. MATERIAL AND METHODS: The analysis included every neonate (15 122) managed in our hospital (2013-2022) and all neonates born preterm before 32 weeks (6913) registered in the SEN1500 database (2019-2022). We considered most useful those curves with the highest likelihood ratio (LR) for dying with or without a history of SGA in each subgroup of gestational ages. Theoretically, the optimal curves for monitoring growth would be those with a higher R2 in the quantile regression formulas for the 50th percentile. RESULTS: The growth curves exhibiting the strongest association between SGA and hospital mortality are the Intergrowth fetal curves and the Fenton neonatal curves in infants born preterm before 32 weeks. However, the optimal curves for premature babies and neonates overall were those of Olsen and Intergrowth. The most useful curves to monitor anthropometric values alone until age 10 years of age are the longitudinal Intergrowth curves followed by the WHO standards, but if a single reference is desired from birth through age 10 years, the best option is the Fenton curves followed by the WHO standards. CONCLUSIONS: The Intergrowth reference provides the most discriminating foetal growth curves. In neonatal clinical practice, the optimal references are the Fenton followed by the WHO charts.
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Desarrollo Fetal , Gráficos de Crecimiento , Recién Nacido Pequeño para la Edad Gestacional , Humanos , Recién Nacido , Femenino , Masculino , Desarrollo Fetal/fisiología , Edad Gestacional , Recien Nacido Prematuro/crecimiento & desarrollo , Lactante , Niño , Mortalidad Hospitalaria , Recién Nacido de Bajo PesoRESUMEN
OBJECTIVE: To identify changes in macronutrient content of very preterm human milk associated with perinatal factors. STUDY DESIGN: Milk macronutrients were measured on weeks 1, 2, 4 and 8 with mid-infrared transmission spectrometers. RESULT: We assessed 625 samples (from 117 mothers and 130 very preterm infants). Average concentrations were: protein 1.3 ± 0.3 g/dl, carbohydrates 7.3 ± 0.6 g/dl, fat 3.7 ± 1.0 g/dl and energy 296.0 ± 41.0 kJ/dl (70.7 kcal/dl). Gestational age negatively correlated with protein (rho: -0.307, p < 0.001) and energy (r: -0.193, p = 0.003). Advanced maternal age, gestational age and intrauterine growth restriction were independently associated with milk protein content over the first 4 weeks (adjusted R2: 0.113, p = 0.002). CONCLUSION: These findings may help neonatologists identify patients fed Mother´s Own Milk who are at increased risk of poor postnatal growth.
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Recien Nacido Extremadamente Prematuro , Leche Humana , Lactante , Embarazo , Femenino , Recién Nacido , Humanos , Nutrientes , Edad Gestacional , Madres , Retardo del Crecimiento FetalRESUMEN
BACKGROUND: An increased rate of bronchopulmonary dysplasia (BPD) is reported in extremely preterm infants. A potential role of human milk feeding in protecting against this condition has been suggested. METHODS: A retrospective descriptive study was conducted based on data about morbidity in the population of infants born between 22+0 and 26+6 weeks of gestation, included in the Spanish network SEN1500 during the period 2004-2019 and discharged alive. The primary outcome was moderate-severe BPD. Associated conditions were studied, including human milk feeding at discharge. The temporal trends of BPD and human milk feeding rates at discharge were also studied. RESULTS: In the study population of 4341 infants, the rate of moderate-severe BPD was 43.7% and it increased to >50% in the last three years. The factors significantly associated with a higher risk of moderate-severe BPD were birth weight, male sex, high-frequency oscillatory ventilation, duration of invasive mechanical ventilation, inhaled nitric oxide, patent ductus arteriosus, and late-onset sepsis. Exclusive human milk feeding and any amount of human milk at discharge were associated with a lower incidence of moderate-severe BPD (OR 0.752, 95% CI 0.629-0.901 and OR 0.714, 95% CI 0.602-0.847, respectively). During the study period, the proportion of infants with moderate-severe BPD fed any amount of human milk at discharge increased more than twofold. And the proportion of infants with moderate-severe BPD who were exclusively fed human milk at discharge increased at the same rate. CONCLUSIONS: Our work shows an inverse relationship between human milk feeding at discharge from the neonatal unit and the occurrence of BPD.
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Importance: Maternal suboptimal nutrition and high stress levels are associated with adverse fetal and childhood neurodevelopment. Objective: To test the hypothesis that structured interventions based on a Mediterranean diet or mindfulness-based stress reduction (MBSR) during pregnancy improve child neurodevelopment at age 2 years. Design, Setting, and Participants: This was a prespecified analysis of the parallel-group Improving Mothers for a Better Prenatal Care Trial Barcelona (IMPACT BCN) randomized clinical trial, which was conducted at a university hospital in Barcelona, Spain, from February 2017 to March 2020. A total of 1221 singleton pregnancies (19 to 23 weeks' gestation) with high risk of delivering newborns who were small for gestational age were randomly allocated into 3 groups: a Mediterranean diet intervention, an MBSR program, or usual care. A postnatal evaluation with the Bayley Scales of Infant and Toddler Development, 3rd Edition (Bayley-III), was performed. Data were analyzed from July to November 2022. Interventions: Participants in the Mediterranean diet group received monthly individual and group educational sessions and free provision of extra virgin olive oil and walnuts. Those in the stress reduction group underwent an 8-week MBSR program adapted for pregnancy. Individuals in the usual care group received pregnancy care per institutional protocols. Main Outcomes and Measures: Neurodevelopment in children was assessed by Bayley-III at 24 months of corrected postnatal age. Results: A total of 626 children (293 [46.8%] female and 333 [53.2%] male) participated at a mean (SD) age of 24.8 (2.9) months. No differences were observed in the baseline characteristics between intervention groups. Compared with children from the usual care group, children in the Mediterranean diet group had higher scores in the cognitive domain (ß, 5.02; 95% CI, 1.52-8.53; P = .005) and social-emotional domain (ß, 5.15; 95% CI, 1.18-9.12; P = .01), whereas children from the stress reduction group had higher scores in the social-emotional domain (ß, 4.75; 95% CI, 0.54-8.85; P = .02). Conclusions and Relevance: In this prespecified analysis of a randomized clinical trial, maternal structured lifestyle interventions during pregnancy based on a Mediterranean diet or MBSR significantly improved child neurodevelopmental outcomes at age 2 years. Trial Registration: ClinicalTrials.gov Identifier: NCT03166332.
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Dieta Mediterránea , Atención Plena , Recién Nacido , Lactante , Embarazo , Humanos , Femenino , Masculino , Niño , Preescolar , Atención Prenatal , Madres , EmocionesRESUMEN
BACKGROUND: Maternal suboptimal nutrition and high stress levels are associated with adverse fetal and infant neurodevelopment. OBJECTIVE: This study aimed to investigate if structured lifestyle interventions involving a Mediterranean diet or mindfulness-based stress reduction during pregnancy are associated with differences in fetal and neonatal brain development. STUDY DESIGN: This was a secondary analysis of the randomized clinical trial Improving Mothers for a Better Prenatal Care Trial Barcelona that was conducted in Barcelona, Spain, from 2017 to 2020. Participants with singleton pregnancies were randomly allocated into 3 groups, namely Mediterranean diet intervention, stress reduction program, or usual care. Participants in the Mediterranean diet group received monthly individual sessions and free provision of extra-virgin olive oil and walnuts. Pregnant women in the stress reduction group underwent an 8-week mindfulness-based stress reduction program adapted for pregnancy. Magnetic resonance imaging of 90 fetal brains was performed at 36 to 39 weeks of gestation and the Neonatal Neurobehavioral Assessment Scale was completed for 692 newborns at 1 to 3 months. Fetal outcomes were the total brain volume and lobular or regional volumes obtained from a 3-dimensional reconstruction and semiautomatic segmentation of magnetic resonance images. Neonatal outcomes were the 6 clusters scores of the Neonatal Neurobehavioral Assessment Scale. Multiple regression analyses were conducted to assess the association between the interventions and the fetal and neonatal outcomes. RESULTS: When compared with the usual care group, the offspring exposed to a maternal Mediterranean diet had a larger total fetal brain volume (mean, 284.11 cm3; standard deviation, 23.92 cm3 vs 294.01 cm3; standard deviation, 26.29 cm3; P=.04), corpus callosum (mean, 1.16 cm3; standard deviation, 0.19 cm3 vs 1.26 cm3; standard deviation, 0.22 cm3; P=.03), and right frontal lobe (44.20; standard deviation, 4.09 cm3 vs 46.60; standard deviation, 4.69 cm3; P=.02) volumes based on magnetic resonance imaging measures and higher scores in the Neonatal Neurobehavioral Assessment Scale clusters of autonomic stability (mean, 7.4; standard deviation, 0.9 vs 7.6; standard deviation, 0.7; P=.04), social interaction (mean, 7.5; standard deviation, 1.5 vs 7.8; standard deviation, 1.3; P=.03), and range of state (mean, 4.3; standard deviation, 1.3 vs 4.5; standard deviation, 1.0; P=.04). When compared with the usual care group, offspring from the stress reduction group had larger fetal left anterior cingulate gyri volume (1.63; standard deviation, 0.32 m3 vs 1.79; standard deviation, 0.30 cm3; P=.03) based on magnetic resonance imaging and higher scores in the Neonatal Neurobehavioral Assessment Scale for regulation of state (mean, 6.0; standard deviation, 1.8 vs 6.5; standard deviation, 1.5; P<.01). CONCLUSION: Maternal structured lifestyle interventions involving the promotion of a Mediterranean diet or stress reduction during pregnancy were associated with changes in fetal and neonatal brain development.
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Dieta Mediterránea , Atención Plena , Complicaciones del Embarazo , Embarazo , Humanos , Recién Nacido , Femenino , Atención Prenatal/métodos , Encéfalo/diagnóstico por imagenRESUMEN
After the publication of the recommendations, agreed by all the scientific societies through the ILCOR, at the end of 2020, the GRN-SENeo began a process of analysis and review of the main changes since the last guidelines, to which a specific consensus positioning on controversial issues, trying to avoid ambiguities and trying to adapt the evidence to our environment. This text summarizes the main conclusions of this work and reflects the positioning of that group.
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Resucitación , ConsensoRESUMEN
After the publication of the recommendations, agreed by all the scientific societies through the ILCOR, at the end of 2020, the GRN-SENeo began a process of analysis and review of the main changes since the last guidelines, to which a specific consensus positioning on controversial issues, trying to avoid ambiguities and trying to adapt the evidence to our environment. This text summarizes the main conclusions of this work and reflects the positioning of that group.
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BACKGROUND: Postnatal growth restriction remains one of the most common problems of very preterm infants (VPI). Chorioamnionitis is a frequent cause of prematurity. Both have been related to worse postnatal outcomes. OBJECTIVES: To evaluate the influence of histological chorioamnionitis (CA) on postnatal growth in very premature infants. METHODS: Retrospective one-to-one matched cohort study assessing growth in infants born at or below 32.0 weeks gestation from mothers for whom histological examination of the placenta was available. Newborns with histological CA were matched and compared with those without it. Postnatal growth was recorded at admission, 14 days of life, 28 days of life and 36 weeks postmenstrual age (PMA). Nutritional support and clinical outcomes were used as covariables. RESULTS: Eighty-eight patients were included: 44 with fetal or/and maternal placental inflammation, and 44 without histological CA (41% with vasculopathy findings and 59% without). Baseline characteristics were similar between the groups. Change in weight z-scores at 14 days of life, 28 days of life, 36 weeks PMA or at discharge were similar in both groups, with a steady fall and no signs of catch-up. No differences were found in enteral and parenteral nutritional intakes between groups. CONCLUSIONS: Histological CA did not affect postnatal growth of very preterm infants after matching for birth weight z-scores with non-CA newborns.
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Corioamnionitis , Peso al Nacer , Corioamnionitis/epidemiología , Estudios de Cohortes , Femenino , Edad Gestacional , Humanos , Lactante , Recién Nacido , Recien Nacido Prematuro , Placenta , Embarazo , Estudios RetrospectivosRESUMEN
AIM: To develop and validate a feasible predictive model for early surfactant treatment in very preterm infants (VPI) admitted with respiratory distress syndrome (RDS). METHODS: Preterm infants less than 32 weeks of gestation with RDS and stabilized with noninvasive ventilation in delivery room were recruited (January 2018-April 2020). Clinical data, chest X-ray (CXR) score, respiratory support, oxygen saturation/fraction of inspired oxygen ratio (SF ratio), lung ultrasound (LUS) score, and diaphragmatic thickening fraction (DTF) were recorded at 60-120 min of life. Oxygen threshold for surfactant administration was fraction of inspired oxygen more than 30%; ultrasound findings were blinded. Logistic regression models using a stepwise selection of variables were developed in the derivation cohort. Coefficients from these models were applied to the validation cohort and a diagnostic performance was calculated. RESULTS: A total of 144 VPI with a mean gestational age of 28.7 ± 2.2 weeks were included (94 into the derivation cohort, 50 into the validation cohort); 37 required surfactant treatment (25.7%). Gestational age, SF ratio, LUS score, CXR score, and Silverman score were related to surfactant administration (R2 = .823). Predictors included in the final model for surfactant administration were SF ratio and LUS score (R2 = .783) with an area under the receiver operating characteristic (AUC) = 0.97 (95% confidence interval [CI]: 0.93-1.00) in the derivation cohort and an AUC = 0.95 (95% CI: 0.85-0.99) in the validation cohort. By applying our predictive model, 26 patients (70.2%) would have been treated with surfactant earlier than 2 h of life. CONCLUSION: The predictive model showed a high diagnostic performance and could be of value to optimize early respiratory management in VPI with RDS.
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Surfactantes Pulmonares/uso terapéutico , Síndrome de Dificultad Respiratoria del Recién Nacido/diagnóstico por imagen , Síndrome de Dificultad Respiratoria del Recién Nacido/tratamiento farmacológico , Femenino , Humanos , Recién Nacido , Recien Nacido Prematuro , Modelos Logísticos , Pulmón/diagnóstico por imagen , Masculino , Reproducibilidad de los Resultados , UltrasonografíaRESUMEN
We would like to thank Gounaris et al [...].
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Recien Nacido Extremadamente Prematuro , Enfermedades del Prematuro , Humanos , Lactante , Recién Nacido , Recién Nacido de muy Bajo Peso , Nutrientes , Política NutricionalRESUMEN
Very preterm infants (VPI, born at or before 32 weeks of gestation) are at risk of adverse health outcomes, from which they might be partially protected with appropriate postnatal nutrition and growth. Metabolic processes or biochemical markers associated to extrauterine growth restriction (EUGR) have not been identified. We applied untargeted metabolomics to plasma samples of VPI with adequate weight for gestational age at birth and with different growth trajectories (29 well-grown, 22 EUGR) at the time of hospital discharge. A multivariate analysis showed significantly higher levels of amino-acids in well-grown patients. Other metabolites were also identified as statistically significant in the comparison between groups. Relevant differences (with corrections for multiple comparison) were found in levels of glycerophospholipids, sphingolipids and other lipids. Levels of many of the biochemical species decreased progressively as the level of growth restriction increased in severity. In conclusion, an untargeted metabolomic approach uncovered previously unknown differences in the levels of a range of plasma metabolites between well grown and EUGR infants at the time of discharge. Our findings open speculation about pathways involved in growth failure in preterm infants and the long-term relevance of this metabolic differences, as well as helping in the definition of potential biomarkers.
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Insuficiencia de Crecimiento , Fenómenos Fisiológicos Nutricionales del Lactante/fisiología , Recien Nacido Prematuro/sangre , Recien Nacido Prematuro/crecimiento & desarrollo , Recién Nacido de muy Bajo Peso/sangre , Recién Nacido de muy Bajo Peso/crecimiento & desarrollo , Biomarcadores/sangre , Estudios de Cohortes , Femenino , Edad Gestacional , Glicerofosfolípidos/sangre , Humanos , Recién Nacido , Masculino , Metaboloma , Metabolómica , Estudios Prospectivos , Esfingolípidos/sangreRESUMEN
Human milk contains non-nutritional factors that promote intestinal maturation and protect against infectious and inflammatory conditions. In the Neonatal Intensive Care Unit (NICU) setting, donor milk (DM) is recommended when availability of own mother's milk (OMM) is not enough. Our aim was to compare the incidence of necrotizing enterocolitis (NEC) and late-onset sepsis (LOS) in very preterm infants (VPI) after the introduction of DM. Growth and breastfeeding rates were examined as secondary outcomes. Single center, observational and retrospective cohort study comparing 227 VPI admitted to our neonatal unit before (Group 1, n = 99) and after (Group 2, n = 128) DM introduction. Enteral nutrition was started earlier after DM availability (2.6 ± 1.1 vs. 2.1 ± 1 days, p = 0.001). Incidence of NEC decreased in group 2 (9.1% vs. 3.4%, p = 0.055), especially in those born between 28 and 32 weeks (5.4 vs. 0.0%, p = 0.044). Surgical NEC was also less frequent. Suffering NEC was 4 times more likely in group 1 (multivariate analysis). Availability of DM did not impact breastfeeding rates or preterm growth. Our findings support the protective role of DM against NEC, particularly in non-extreme VPI, a group less frequently included in clinical guidelines and research studies on the use of DM.
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Peso al Nacer , Alimentación con Biberón , Extracción de Leche Materna , Desarrollo Infantil , Enterocolitis Necrotizante/prevención & control , Recien Nacido Prematuro/crecimiento & desarrollo , Leche Humana , Factores de Edad , Enterocolitis Necrotizante/epidemiología , Enterocolitis Necrotizante/fisiopatología , Edad Gestacional , Humanos , Incidencia , Recién Nacido , Sepsis Neonatal/epidemiología , Sepsis Neonatal/fisiopatología , Sepsis Neonatal/prevención & control , Valor Nutritivo , Factores Protectores , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , España/epidemiologíaRESUMEN
OBJECTIVES: Thrombocytosis is more prevalent in pediatric than in adult patients and is associated with complications or worsened outcomes after vascular events. This study aimed to determine the prevalence of thrombocytosis in very preterm infants who had not received human recombinant erythropoietin treatment (rHuEPO) and its relationship with other hematological parameters and clinical complications. METHODS: We performed a retrospective study of hematological and clinical data of very preterm infants who were admitted to our unit in their first 48 hours of life and stayed for longer than 1 week. RESULTS: Thrombocytosis was prevalent (32.6% of patients) in very preterm infants (≤32 weeks of gestational age, n = 193) who had not received rHuEPO. The platelet count was positively correlated with calendar age. Infants with thrombocytosis were significantly more premature (28.0 ± 2.1 versus 29.6 ± 2.2 weeks) and had a lower birth weight (1036 ± 304 versus 1303 ± 304) than those without thrombocytosis. Thrombocytosis was associated with retinopathy of prematurity after adjusting for gestational age and comorbidities, but not with other prematurity-associated complications. CONCLUSIONS: Late asymptomatic thrombocytosis is common in very preterm infants at approximately 1 month of postnatal age and it may be associated with retinopathy of prematurity.
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Eritropoyetina/administración & dosificación , Enfermedades del Prematuro/fisiopatología , Recien Nacido Prematuro , Retinopatía de la Prematuridad/diagnóstico , Trombocitosis/diagnóstico , Estudios de Seguimiento , Edad Gestacional , Humanos , Recién Nacido , Enfermedades del Prematuro/tratamiento farmacológico , Pronóstico , Proteínas Recombinantes/administración & dosificación , Retinopatía de la Prematuridad/epidemiología , Estudios Retrospectivos , España/epidemiología , Trombocitosis/epidemiologíaRESUMEN
AIM: To analyze different methods to assess postnatal growth in a cohort of very premature infants (VPI) in a clinical setting and identify potential early markers of growth failure. METHODS: Study of growth determinants in VPI (≤32 weeks) during hospital stay. Nutritional intakes and clinical evolution were recorded. Growth velocity (GV: g/kg/day), extrauterine growth restriction (%) (EUGR: weight < 10th centile, z-score < -1.28) and postnatal growth failure (PGF: fall in z-score > 1.34) at 36 weeks postmenstrual age (PMA) were calculated. Associations between growth and clinical or nutritional variables were explored (linear and logistic regression). RESULTS: Sample: 197 VPI. GV in IUGR patients was higher than in non-IUGRs (28 days of life and discharge). At 36 weeks PMA 66.0% of VPIs, including all but one of the IUGR patients, were EUGR. Prevalence of PGF at the same time was 67.4% (IUGR patients: 48.1%; non-IUGRs: 70.5% (p = 0.022)). Variables related to PGF at 36 weeks PMA were initial weight loss (%), need for oxygen and lower parenteral lipids in the first week. CONCLUSIONS: The analysis of z-scores was better suited to identify postnatal growth faltering. PGF could be reduced by minimising initial weight loss and assuring adequate nutrition in patients at risk.