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Objectives: To establish normative data of plethysmograph variability index (PVI), a simple non-invasive tool to measure fluid responsiveness, in neonates. Methods: All healthy term and late preterm neonates were enrolled. PVI was recorded by pulse-oximeter on first three days of life along with other vital parameters. Data was analysed using SPSS software. Results: The median PVI value was noted to be 21 with a wide range. The distribution of PVI did not differ according to day of life/ gestational age/ gender/ weight for gestational age. It did not significantly correlate with heart rate, gestational age or birth weight. A weak positive correlation was noted between PVI and PI (Rho = 0.157, p <0.001). Conclusions: PVI normative data in neonates has been presented. Serial trend of PVI values is more useful than a single value in making clinical decisions. [ABSTRACT FROM AUTHOR]

Objective: Comparative study of vitamin D status in late preterm and term neonates with sepsis and healthy neonates in a tertiary care hospital in Northern India. Methods: In this hospital based case control study conducted over 12 months, a total of 70 late preterm and term neonates were included, with 35 neonates each in the sepsis group and non-sepsis group. The difference between the mean vitamin D level of the neonates with sepsis and neonates without sepsis group was calculated. The association of VDD with neonatal sepsis was determined by multivariate logistic regression analysis. P value of 0.05 was considered statistically significant. Results: The study found that about 80% of neonates in the septic group and 52% of neonates in the non-septic group had vitamin D deficiency. The mean Cholecalciferol in the septic group (13.51 ng/ml ± 6.56 ng/ml) was significantly lower (p value 0.02) than in the non-septic group (24.47 n/ml ± 8.73 ng/ml). There was a positive correlation between degree of vitamin D deficiency (severe VDD and insufficiency) and sepsis (p = 0.005). Prolonged hospital stay and antibiotic treatment were observed in the septic group (p < 0.001) with significant mortality (p < 0.001). Logistic regression analysis showed that lower vitamin D levels, maternal hypertension, premature birth, and lower birth weight significantly increased the odds of sepsis, highlighting these as predictive factors for adverse outcomes. Conclusion: The study showed a significant association of neonatal sepsis with vitamin D. The study highlights extended hospital stays and increased mortality among septic neonates with vitamin D deficiency.

Aim: Respiratory distress due to transition delay in term and late preterm newborns is an important cause of neonatal intensive care unit (NICU) admissions. In our study, we aimed to assess the impact of the intermediate neonatal care unit structure on the occurrence of NICU admission and pneumothorax resulting from transient tachypnea of neonate (TTN) and transition delay. Materiasl and Methods: On April 1, 2021, an intermediate neonatal care unit with 4 beds was established in the delivery room of our hospital in order to reduce shortterm hospitalizations in the NICU. The unit is staffed by two senior pediatric residents and two neonatal nurses. In accordance with the ILCOR 2020 recommendations, newborns born ≥ 34 weeks who require nasal continuous positive airway pressure (nCPAP) due to respiratory distress, before (January 2020--March 2021=Period 1) and after (April 2021--December 2022=Period 2) the intermediate care unit were evaluated retrospectively in terms of perinatal, postnatal and NICU hospitalization characteristics. Results: Demographic characteristics of infants in Period 1 and Period 2 were similar (p>0.05). At least one symptom of respiratory distress was observed in 89% of neonates receiving nCPAP in the NICU throughout period 1. In period 2, there was an increase in the number of infants who received nCPAP because O2 saturation targets could not be reached after the 10th minute. Hospitalization rates declined significantly in the Period 2 (p<0.01). Invasive mechanical ventilation requirement was higher (p=0.01) and total ventilation time was longer (p=0.035) in patients hospitalized in the NICU in period 2. Duration of hospital stay and pneumothorax rates were similar in both periods (p=0.489 and p=0.720). Conclusion: It has been shown that an intermediate neonatal care unit structured in the delivery room provides a reduction in NICU hospitalizations of term and late preterm newborns without causing air leakage with the nCPAP treatment. The appropriate use of resources is expected to minimize the anxiety that will arise in the family and the separation of mother and infant during hospitalization. [ABSTRACT FROM AUTHOR]

Objective The aim of this study was to determine which late-preterm (35–36 weeks' gestational age [GA]) and term neonates with early-onset hypoglycemia in the first 72 hours postnatal required a continuous glucose infusion to achieve and successfully maintain euglycemia. Study Design This is a retrospective cohort study of late preterm and term neonates born in 2010–2014 and admitted to the Mother-Baby Unit at Parkland Hospital who had laboratory-proven blood glucose concentration < 40 mg/dL (2.2 mmol/L) during the first 72 hours of life. Among the subgroup needing intravenous (IV) glucose infusion, we analyzed which factors predicted a maximum glucose infusion rate (GIR) ≥ 10 mg/kg/min. The entire cohort was randomly divided into a derivation cohort (n = 1,288) and a validation cohort (n = 1,298). Results In multivariate analysis, the need for IV glucose infusion was associated with small size for GA, low initial glucose concentration, early-onset infection, and other perinatal variables in both cohorts. A GIR ≥ 10 mg/kg / min was required in 14% of neonates with blood glucose value < 20 mg/dL during the first 3 hours of observation. The likelihood of a GIR ≥ 10 mg/kg/min was associated with lower initial blood glucose value and lower umbilical arterial pH. Conclusion Need for IV glucose infusion was associated with small size for GA, low initial glucose concentration, early-onset infection, and variables associated with perinatal hypoxia–asphyxia. The likelihood of a maximum GIR ≥ 10 mg/kg/min was greater in neonates with lower blood glucose value during the first 3 hours of observation and lower umbilical arterial pH. Key Points We studied 51,973 neonates ≥ 35 weeks' GA. We established a model predicting the need for IV glucose. We also predicted the need for a high rate of IV glucose. [ABSTRACT FROM AUTHOR]

Hypoglycemia is a common metabolic disorder that occurs in the neonatal period. Early identification of neonates at risk of developing hypoglycemia can optimize therapeutic strategies in neonatal care. This study aims to develop a machine learning model and implement a predictive application to assist clinicians in accurately predicting the risk of neonatal hypoglycemia within four hours after birth. Our retrospective study analyzed data from neonates born ≥35 weeks gestational age and admitted to the well-baby nursery between 1 January 2011 and 31 August 2021. We collected electronic medical records of 2687 neonates from a tertiary medical center in Southern Taiwan. Using 12 clinically relevant features, we evaluated nine machine learning approaches to build the predictive models. We selected the models with the highest area under the receiver operating characteristic curve (AUC) for integration into our hospital information system (HIS). The top three AUC values for the early neonatal hypoglycemia prediction models were 0.739 for Stacking, 0.732 for Random Forest and 0.732 for Voting. Random Forest is considered the best model because it has a relatively high AUC and shows no significant overfitting (accuracy of 0.658, sensitivity of 0.682, specificity of 0.649, F1 score of 0.517 and precision of 0.417). The best model was incorporated in the web-based application integrated into the hospital information system. Shapley Additive Explanation (SHAP) values indicated mode of delivery, gestational age, multiparity, respiratory distress, and birth weight < 2500 gm as the top five predictors of neonatal hypoglycemia. The implementation of our machine learning model provides an effective tool that assists clinicians in accurately identifying at-risk neonates for early neonatal hypoglycemia, thereby allowing timely interventions and treatments. [ABSTRACT FROM AUTHOR]

Abstract Background We present a severe neonatal consequence due to the unexpected and crucial inversion of the fetal position after sudden termination of tocolysis during early labor of a woman with congenital uterine anomaly. It has been reported that congenital uterine anomalies latently affect the fetal position. The clinical pitfalls in childbirth with uterine anomalies are discussed here on the basis of clinical evidence. Case presentation At a perinatal medical center in Japan, a 29-year-old Japanese mother who had a history of bicornuate uterus, received tocolysis to prolong her pregnancy for 5 days during the late preterm period after preterm-premature rupture of the membrane. She gave birth to a 2304 g male neonate of the gestational age of 35 weeks and 5 days with severe asphyxia by means of crash cesarean section for fetal sustained bradycardia after sudden termination of tocolysis. We found the fetal position to reverse from cephalic to breech position during early labor. He ended up having severe cerebral palsy after brain cooling against hypoxic-ischemic encephalopathy for 3 days. The mechanism of inversion from cephalic to breech position without amnionic fluid remains unclear, although women with a known diagnosis of a uterine anomaly have higher risk of adverse outcomes such as malpresentation. Conclusions When considering the clinical course of this case on the basis of the medical reports, we suspected that uterine anomalies and changes in intrauterine pressure could cause fetal malpresentation and adverse neonatal outcomes.

Abstract Background To investigate the association between late preterm antenatal corticosteroid treatment and outcome in late preterm neonates born to mothers with gestational diabetes mellitus, Methods All patients with gestational diabetes mellitus who had a late preterm delivery at Etlik Lady Zübeyde Hospital between 2017 and 2021 were included. Women who met the inclusion criteria and were not given antenatal corticosteroid treatment during current pregnancy before 34 0/7 weeks of gestation were divided into two groups according to whether or not they received late preterm antenatal corticosteroid treatment. The two groups were compared in terms of adverse neonatal complications. The main outcomes were composite respiratory outcome and composite neonatal outcome. Logistic regression analysis was used to determine additional potential predictors of neonatal outcome. Results This retrospective cohort study included a total of 400 participants with gestational diabetes mellitus who had a late preterm delivery within the study period. Of these women, 196 (49%) received late preterm antenatal corticosteroid treatment. Main outcomes showed no difference. Decreasing gestational age at birth was identified as an independent risk factor predicting both composite respiratory outcome and composite neonatal outcome in multivariate logistic regression analysis. Conclusions Antenatal corticosteroid treatment at or after 34 0/7 weeks of gestation in women with gestational diabetes mellitus who had a late preterm delivery was not associated with improvement in adverse neonatal outcomes. Decreasing gestational age at birth was the only independent risk factor predicting composite neonatal and composite respiratory outcomes.

The Antenatal Late Preterm Steroids (ALPS) trial was designed to address respiratory morbidity common in infants born late preterm. The study was published in April, 2016 and, shortly thereafter, changed clinical practice in obstetrics in the United States. The following chapter describes the ALPS trial study design in detail, including the background leading to the trial, the study outcomes, and the initial findings of the long-term follow-up study. The ALPS story would not be complete without Elizabeth Thom, PhD, who died before her time. Her brilliance largely contributed to the design of the ALPS trial. [ABSTRACT FROM AUTHOR]

Background: Late preterm births account for a large portion of preterm births, yet the optimal method of nutrition and enteral feeding in this population remains unclear and often involves intravenous (IV) fluids. Purpose: To develop and implement a late preterm feeding protocol in order to decrease the necessity of IV access, decrease the use of starter parenteral nutrition (PN), and reduce the pain endured by an infant in the neonatal intensive care unit. Methods: The Plan-Do-Study-Act quality improvement model was utilized as a framework for the implementation of this quality improvement project. A literature review was conducted and subsequently, a feeding protocol was developed and included the more judicious use of starter PN. This protocol was implemented, evaluated, and adopted. A second Plan-Do-Study-Act cycle was completed with the addition of an auto-text reminder incorporated into admission notes in the electronic medical record. Results: The implementation of the protocol significantly reduced placement of IV access and the use of starter (PN) in late preterm infants without considerable differences in balancing measures. The percentage of infants who received peripheral IV access declined considerably from 70% to 42% (P = .0017) subsequently, less pain endured by the infants. There was a decrease in the initiation of starter PN from 55% to 7% (P < .00001). Implications for Practice and Research: Administering enteral feedings on admission to stable, late preterm infants, reduced the need for peripheral IV access and thus decreased pain from this procedure. More research needs to be done to determine the optimal amount of feedings to administer in the first 24 hours of life for the late preterm infant as well as the best method for supplementation if necessary. [ABSTRACT FROM AUTHOR]

Background: To investigate the association between late preterm antenatal corticosteroid treatment and outcome in late preterm neonates born to mothers with gestational diabetes mellitus, Methods: All patients with gestational diabetes mellitus who had a late preterm delivery at Etlik Lady Zübeyde Hospital between 2017 and 2021 were included. Women who met the inclusion criteria and were not given antenatal corticosteroid treatment during current pregnancy before 34 0/7 weeks of gestation were divided into two groups according to whether or not they received late preterm antenatal corticosteroid treatment. The two groups were compared in terms of adverse neonatal complications. The main outcomes were composite respiratory outcome and composite neonatal outcome. Logistic regression analysis was used to determine additional potential predictors of neonatal outcome. Results: This retrospective cohort study included a total of 400 participants with gestational diabetes mellitus who had a late preterm delivery within the study period. Of these women, 196 (49%) received late preterm antenatal corticosteroid treatment. Main outcomes showed no difference. Decreasing gestational age at birth was identified as an independent risk factor predicting both composite respiratory outcome and composite neonatal outcome in multivariate logistic regression analysis. Conclusions: Antenatal corticosteroid treatment at or after 34 0/7 weeks of gestation in women with gestational diabetes mellitus who had a late preterm delivery was not associated with improvement in adverse neonatal outcomes. Decreasing gestational age at birth was the only independent risk factor predicting composite neonatal and composite respiratory outcomes. [ABSTRACT FROM AUTHOR]

BACKGROUND Pulse oximetry is commonly used to monitor arterial oxygen saturation and heart rate during the transition period and reference intervals have been determined. However, the effect of the change in arterial oxygen saturation on tissue oxygenation does not seem to be the same. So, a non-invasive method for monitoring cerebral or regional tissue oxygenation will be potentially useful for vulnerable infants. This study aims to evaluate the effectiveness of cerebral autoregulation in the first 10 min after delivery in term and late preterm newborns without resuscitation requirement. METHODS Cerebral tissue oxygen saturation was measured in the first 10 min after birth with near-infrared spectroscopy (NIRS) from the left forehead. Peripheral oxygen saturation was measured with pulse oximetry from the right hand and cerebral fractional tissue oxygen extraction was calculated. RESULTS Nineteen late preterms and 20 term infants were included in the study. There was no statistically significant difference between median cerebral tissue oxygen saturation and cerebral fractional tissue oxygen extraction values of late preterm and term infants (p  < 0.001). There was a strong inverse relationship between cerebral tissue oxygen saturation and cerebral fractional tissue oxygen extraction (p  < 0.001). CONCLUSIONS In late preterm infants similar to term infants, arterial oxygen saturation and cerebral tissue oxygen saturation increased with time, but inverse reduction of cerebral fractional tissue oxygen extraction showed the presence of an active autoregulation in the brain. This can be interpreted as the ability of the brain to protect itself from hypoxia by regulating oxygen uptake during normal fetal-neonatal transition process. A larger scale multi-center randomized control trial is now needed to further inform practice. [ABSTRACT FROM AUTHOR]

Challenging the assumption of uniform nutritional needs in preterm feeding, this study identifies crucial sex-specific disparities in formula milk intake and growth among late preterm infants. Premature infants have difficulty regulating their oral intake during feeds, which is why clinicians prescribe feeding volume, calories, and protein via the nasogastric route. However, premature male and female infants have different body compositions at birth, and, subsequently, there is no evidence to suggest that male and female preterm infants differ in their nutritional consumption once they begin feeding ad libitum. This study investigates whether there are any differences in the volume and nutrient intake between the sexes when fed formula ad libitum. Methods: The study involved a retrospective analysis of preterm infants admitted to the NICU and evaluated between 34 0/7 and 36 6/7 weeks of corrected gestation. Late preterm infants appropriate for gestational age who were spontaneously fed formula milk ad-lib and free of any respiratory support for at least two days were included. The study excluded infants with short gut syndrome, severe chromosomal anomalies, or congenital heart conditions. We included 85 male and 85 female infants in this study. The data collected included sex, gestational age, birth weight, anthropometric data at birth, maternal data, nutritional intake, and neonatal morbidity. Results: This study found that female infants consumed more volume, protein, and calories than male infants. The mean formula intake in female and male infants was 145.5 ± 20.8 mL/kg/d and 135.3 ± 19.3 mL/kg/d, respectively, with p = 0.002. However, ad-lib feeding duration was not different between the sexes. Growth velocity was also higher in female infants. Conclusions: This study is the first to demonstrate differences in formula milk intake among late preterm infants fed ad libitum. Additional research is needed to confirm our findings and understand sex-specific differences in neonatal nutrition in extremely early preterm infants. [ABSTRACT FROM AUTHOR]

Most preterm births occur in the late preterm period. While prematurity-related adverse outcomes are significantly diminished when birth occurs during this period, these infants are still at increased risk of complications. Parity affects the incidence of obstetric complications. The purpose of this study was to determine whether parity impacts the risk of spontaneous late preterm birth (SLPTB) and associated complications. A retrospective observational cohort study was conducted. Patients were divided into three study groups according to parity. The primary outcome was the rate of SLPTB in each group. Secondary outcomes were unplanned cesarean delivery (UCD), prolonged third stage of labor respiratory distress syndrome (RDS), transient tachypnea of the newborn (TTN), intraventricular hemorrhage (IVH), neonatal hypoglycemia, duration of NICU admission, neonatal death, and composite adverse neonatal outcome (CANO). Primiparas were more likely to have SLPTB, UCD, and CANO compared to multiparas (2.6% vs. 1.9% OR 1.5 [1.3–1.7] p < 0.01) (4.1% vs. 1.3% OR 2.7 [1.2, 5.9] p < 0.01) (8.5% vs. 4.2 OR 2.1 [1.3–3.5] p = 0.002) and grandmultiparas (2.6% vs. 1.7% OR 1.4 [1.2–1.5] p < 0.001) 8.5% vs. 4.4% OR 2.0 [1.1, 3.8], p = 0.01) but no difference in UCD compared to grandmultiparas (4.1% vs. 3.3% OR 1.2 [0.6–2.7] p = 0.28). Primiparas are at increased risk of SLPTB and UCD, and this is accompanied by an increased risk of adverse neonatal outcomes. [ABSTRACT FROM AUTHOR]

Objective Late preterm and early term deliveries are common in pregnancies complicated by diabetes due to higher rates of obstetric complications including increased stillbirth risk. However, early delivery is associated with multiple neonatal adverse outcomes, which may be further increased by maternal diabetes. We examined whether there is an additive effect on adverse neonatal outcomes in the setting of maternal diabetes in the late preterm and early term periods. Study Design This was a retrospective cohort study of women with a singleton, nonanomalous pregnancy delivering at a single academic medical center in the late preterm (34 0/7 –36 6/7 weeks) or early term (37 0/7 –38 6/7 weeks) period between 2010 and 2019. Women were categorized by diabetes status: no diabetes, type 1 (T1DM), type 2 (T2DM), or gestational diabetes (GDM). Multivariate logistic regression was used to calculate adjusted odds ratios (aOR) and 95% confidence intervals (CI) for risk of both mild and severe composite neonatal outcome with delivery in the late preterm or early term period using pregnancies without diabetes as the referent. Results A total of 8,072 pregnancies were included with T1DM, T2DM, and GDM complicating 1.8, 5.6, and 9.9% of pregnancies, respectively. Expected demographic differences were seen among groups including higher rates of non-Hispanic Black race, chronic hypertension, and higher body mass index in women with T2DM. The probability of severe composite adverse neonatal outcome was significantly increased in women with T1DM in the late preterm (aOR: 4.4; CI: 2.4–8.1) and early term (aOR: 1.6; CI: 1.1–2.3) periods, largely driven by the need for mechanical ventilation. The mild composite outcome was increased among all women with diabetes with early term delivery but highest in women with T1DM. Conclusion Pregnancies complicated by diabetes, particularly T1DM, have higher rates of neonatal adverse outcomes independent of gestational age at delivery, which is an important consideration when late preterm or early term delivery is planned. Key Points Diabetes in pregnancy increases risk of early delivery. Adverse neonatal outcomes are higher with diabetes, especially T1DM. Adverse neonatal outcomes are independent of gestational age. [ABSTRACT FROM AUTHOR]

Objective: We aimed to determine the association of serum vitamin D levels with early neonatal mortality/morbidity in late-preterm (LP) infants (born between 34 0/7 and 36 6/7 weeks of gestational age) monitored in the neonatal intensive care unit (NICU). Patients and Methods: This retrospective study was conducted by reviewing live-born LP neonates from singleton pregnancies. The infants were monitored and treated in our hospital's NICU between June 2016 and June 2019. Results: Maternal age at delivery was higher among infants with adequate vitamin D levels than among those with deficient vitamin D levels (P=0.007). A weak positive correlation was found between maternal age at childbirth and neonates' vitamin D levels (r=0.296). The rate of low-birth-weight deliveries was greater in babies with sufficient vitamin D levels than in those with deficient levels. There was a weak negative association between the number of stools on the day that the infants' serum 25-hydroxyvitamin D (25-OHD) levels were taken and their vitamin D level (P=0.027, r=-0.244). Conclusions: A significant correlation was shown between serum 25-OHD levels and maternal age and low birth weight in LP neonates. Upon examining the influence of vitamin D levels on the number of defecations per day, no significant difference was detected; however, a weak negative association was identified between them. [ABSTRACT FROM AUTHOR]

Summary: Background: The aim of this study was to detail incidence rates and relative risks for severe adverse perinatal outcomes by birthweight centile categories in a large Australian cohort of late preterm and term infants. Methods: This was a retrospective cohort study of singleton infants (≥34+0 weeks gestation) between 2000 and 2018 in Queensland, Australia. Study outcomes were perinatal mortality, severe neurological morbidity, and other severe morbidity. Categorical outcomes were compared using Chi-squared tests. Continuous outcomes were compared using t-tests. Multinomial logistic regression investigated the effect of birthweight centile on study outcomes. Findings: The final cohort comprised 991,042 infants. Perinatal mortality occurred in 1944 infants (0.19%). The incidence and risk of perinatal mortality increased as birthweight decreased, peaking for infants

Hypoglycemia is a common metabolic disorder that occurs in the neonatal period. Early identification of neonates at risk of developing hypoglycemia can optimize therapeutic strategies in neonatal care. This study aims to develop a machine learning model and implement a predictive application to assist clinicians in accurately predicting the risk of neonatal hypoglycemia within four hours after birth. Our retrospective study analyzed data from neonates born ≥35 weeks gestational age and admitted to the well-baby nursery between 1 January 2011 and 31 August 2021. We collected electronic medical records of 2687 neonates from a tertiary medical center in Southern Taiwan. Using 12 clinically relevant features, we evaluated nine machine learning approaches to build the predictive models. We selected the models with the highest area under the receiver operating characteristic curve (AUC) for integration into our hospital information system (HIS). The top three AUC values for the early neonatal hypoglycemia prediction models were 0.739 for Stacking, 0.732 for Random Forest and 0.732 for Voting. Random Forest is considered the best model because it has a relatively high AUC and shows no significant overfitting (accuracy of 0.658, sensitivity of 0.682, specificity of 0.649, F1 score of 0.517 and precision of 0.417). The best model was incorporated in the web-based application integrated into the hospital information system. Shapley Additive Explanation (SHAP) values indicated mode of delivery, gestational age, multiparity, respiratory distress, and birth weight < 2500 gm as the top five predictors of neonatal hypoglycemia. The implementation of our machine learning model provides an effective tool that assists clinicians in accurately identifying at-risk neonates for early neonatal hypoglycemia, thereby allowing timely interventions and treatments.

Abstract Background Evidence suggests that accelerated postnatal growth in children is detrimental for adult cardiovascular health. It is unclear whether children born late preterm (34–36 weeks) compared to full term (≥ 39 weeks), have different growth trajectories. Our objective was to evaluate the association between gestational age groups and growth trajectories of children born between 2006–2014 and followed to 2021 in Ontario, Canada. Methods We conducted a retrospective cohort study of children from singleton births in TARGet Kids! primary care network with repeated measures of weight and height/length from birth to 14 years, who were linked to health administrative databases. Piecewise linear mixed models were used to model weight (kg/month) and height (cm/month) trajectories with knots at 3, 12, and 84 months. Analyses were conducted based on chronological age. Results There were 4423 children included with a mean of 11 weight and height measures per child. The mean age at the last visit was 5.9 years (Standard Deviation: 3.1). Generally, the more preterm, the lower the mean value of weight and height until early adolescence. Differences in mean weight and height for very/moderate preterm and late preterm compared to full term were evident until 12 months of age. Weight trajectories were similar between children born late preterm and full term with small differences from 84–168 months (mean difference (MD) -0.04 kg/month, 95% CI -0.06, -0.03). Children born late preterm had faster height gain from 0–3 months (MD 0.70 cm/month, 95% CI 0.42, 0.97) and 3–12 months (MD 0.17 cm/month, 95% CI 0.11, 0.22). Conclusions Compared to full term, children born late preterm had lower average weight and height from birth to 14 years, had a slightly slower rate of weight gain after 84 months and a faster rate of height gain from 0–12 months. Follow-up is needed to determine if growth differences are associated with long-term disease risk.

Abstract Almost 30% of live births in England and Wales occur late preterm or early term (LPET) and are associated with increased risks of adverse health outcomes throughout the lifespan. However, very little is known about the decision-making processes concerning planned LPET births or the involvement of parents in these. This aim of this paper is to review the evidence on parental involvement in obstetric decision-making in general, to consider what can be extrapolated to decisions about LPET delivery, and to suggest directions for further research. A comprehensive, narrative review of relevant literature was conducted using Medline, MIDIRS, PsycInfo and CINAHL databases. Appropriate search terms were combined with Boolean operators to ensure the following broad areas were included: obstetric decision-making, parental involvement, late preterm and early term birth, and mode of delivery. This review suggests that parents’ preferences with respect to their inclusion in decision-making vary. Most mothers prefer sharing decision-making with their clinicians and up to half are dissatisfied with the extent of their involvement. Clinicians’ opinions on the limits of parental involvement, especially where the safety of mother or baby is potentially compromised, are highly influential in the obstetric decision-making process. Other important factors include contextual factors (such as the nature of the issue under discussion and the presence or absence of relevant medical indications for a requested intervention), demographic and other individual characteristics (such as ethnicity and parity), the quality of communication; and the information provided to parents. This review highlights the overarching need to explore how decisions about potential LPET delivery may be reached in order to maximise the satisfaction of mothers and fathers with their involvement in the decision-making process whilst simultaneously enabling clinicians both to minimise the number of LPET births and to optimise the wellbeing of women and babies.

Background: Hypoglycemia is the most common metabolic disorder seen in newborns and can cause long-term neurological damage, developmental disorders and poor later school performance. In recent years, the use of oral dextrose gel is widely used as a first-line treatment for prevention of asymptomatic neonatal hypoglycemia. Primary aim of our study was to evaluate the effects of oral administration of 40 % dextrose gel at 30 or 60 min of life on the incidence of hypoglycemia in at-risk infants born by vaginal or cesarean delivery in the first 48 h of life. Secondary aim was to evaluate if the oral administration of 40 % dextrose gel can decrease the use of formula milk. Methods: A retrospective observational study was conducted at the Buon Consiglio Fatebenefratelli Hospital. Newborns birth by vaginal or Caesarean section and that assumed 40 % dextrose gel at 30 or 60 min after birth were respectively divided in 4 groups (Group A, Group B, Group C and Group D). Glycemic monitoring was then carried out with serial measurements at 2, 4, 6, 12 and 48 h of life. Results: No statistically significant differences were found in the reduction of the incidence of hypoglycemia with respect to the timing of administration of the dextrose gel (χ2(3)=0,450; p = 0,930). The use of formula milk was higher in newborns born by Caesarean section that assumed dextrose gel at 30 min of life than other groups (χ2(3)=11,616; p = 0,009; OR (95 %CI)= 3,033 (1,286–7,153). Conclusions: The use of 40 % oral dextrose gel is a useful strategy for the prevention of hypoglycemia especially in infants at risk, independently to mode of delivery. Timing of administration of dextrose gel did not have effect on the incidence of hypoglycemia among groups. Newborns born by Caesarean section and that assumed 40 % oral dextrose gel at 30 min of life assume more formula milk compared to other groups.

BackgroundPrimary hyperoxaluria type 1 (PH1) is a rare disease with autosomal recessive transmission, characterized by increased urinary excretion of oxalate, resulting in chronic kidney disease secondary to recurrent urolithiasis, nephrocalcinosis, and accumulation of oxalate in various organs and tissues (systemic oxalosis). Since 2020, an innovative pharmacological approach, namely, lumasiran, has been added to the therapeutic armamentarium (dialysis and liver-kidney transplantation). The purpose of this paper is to describe the effect of lumasiran initiated at 10 days of life in a newborn with prenatally diagnosed PH1. A female fetus was prenatally diagnosed with hyperoxaluria type 1, based on family history and genetic testing. Her brother had the onset of the disease at 2 months of age and underwent liver and kidney transplantation at 13 months and 8 years of age, respectively. The baby was born late preterm at 36 weeks + 4 days of gestation via spontaneous labor, and lumasiran for compassionate use was started on the tenth day of life. At 20 months of age, the baby showed normal urinary oxalate values and kidney function, while the plasma oxalate level was under the threshold of oversaturation. There were no signs of systemic oxalosis.ConclusionsEarly use of lumasiran in young infants, who do not yet show signs of the disease, represents a therapeutic challenge for the pediatric nephrologist. The ability of the drug to act on the hepatocyte of the newborn and the most appropriate dosage to be used in these very young babies have yet to be clarified.

Background: Preterm birth is an important outcome or exposure in epidemiologic research. When administrative data on measured gestational age is not available, parent-reported gestational age can be obtained from questionnaires, which is subject to potential bias. To our knowledge, few studies have assessed the validity of parentreported gestational age categories, including commonly defined categories of preterm birth. Methods: We used linked data from primarily healthy children <6 years of age in TARGet Kids! in Toronto, Canada, and ICES administrative healthcare data from April 2011 to March 2020. We assessed the criterion validity of questionnaire-based parent-reported gestational age by calculating sensitivity and specificity for term (=37 weeks), late preterm (34-36 weeks), and moderately preterm (32-33 weeks) gestational age categories, using administrative healthcare records of gestational age as the criterion standard. We conducted subgroup analyses for various parent and socioeconomic factors that may influence recall. Results: Of the 4684 participants, 97.3% correctly classified the gestational age category according to administrative healthcare data. Parent-reported gestational age sensitivity ranged from 83.7% to 98.5% and specificity ranged from 88.3% to 99.8%, depending on category. For each subgroup characteristic, sensitivity and specificity were all =70%. Lower educational attainment, lower family income, father reporting, =1 year since birth, =2 children, lower parent age, and reported gestational diabetes and/or hypertension were associated with slightly lower sensitivity and/or specificity. Conclusions: In this linked cohort, parent-reported gestational age categories had high accuracy. Criterion validity varied minimally among some parent and socioeconomic factors. Our findings can inform future quantitative bias analyses. [ABSTRACT FROM AUTHOR]

Background: Late-preterm and early-term births constitute a significant proportion of live births. However, handwriting skills of these two populations remain unclear. We aimed to investigate their risk for poor Chinese handwriting in grade two. Methods: In this observational study, 185 second graders born late preterm (34+0–36+6 weeks' gestation, n = 54), early term (37+0–38+6 weeks' gestation, n = 56), and full term (39+0–41+6 weeks’ gestation, n = 75) without any intervention or diagnosis related to developmental delays were included. Their handwriting performance was rated by class teachers using the Chinese Handwriting Evaluation Form (CHEF), which is a standardized handwriting scale including five handwriting dimensions (construction, accuracy, directionality, speed, and pencil grasp). Results: After controlling for demographic risk factors, the late-preterm born group had a greater risk of having worse performance in the full form (adjusted odds ratio [aOR] = 3.93; p = .038) and construction dimension (aOR = 4.77; p = .009) of the CHEF than peers born at full term, whereas the risks were comparable for the early- and full-term born groups (aOR = 0.14–1.90; p = .073–0.453 in the handwriting dimensions). Conclusions: Late-preterm but not early-term born children were found to be at higher risk for poor Chinese handwriting in grade two. They particularly have difficulty with spatial construction including size, spacing, and alignment of Chinese characters and components that may influence handwriting legibility.

ABSTRACTThe aim of this study was to obtain insight into the composition and function of the deviant gut microbiome throughout infancy in children born moderately and late preterm and their response to microbiome modulation. We characterized the longitudinal development of the gut microbiome from birth to the age of 12 months by metagenomic sequencing in 43 moderate and late preterm children participating in a randomized, controlled trial (ClinicalTrials.gov/no.NCT00167700) assessing the impact of a probiotic (Lactobacillus rhamnosus GG, ATCC 53,103, currently Lacticaseibacillus rhamnosus GG) and a prebiotic (galacto-oligosaccharide and polydextrose mixture, 1:1) intervention as compared to a placebo administered from 3 to 60 days of life. In addition, 9 full-term, vaginally delivered, breast-fed infants, who remained healthy long-term were included as references. Significant differences in taxonomy, but not in functional potential, were found when comparing the gut microbiome composition of preterm and full-term infants during the first month of life. However, the gut microbiome of preterm infants resembled that of full-term infants by 6 months age. Probiotic and prebiotic treatments were found to mitigate the shift in the microbiome of preterm infants by accelerating Bifidobacteria-dominated gut microbiome in beta diversity analysis. This study provides intriguing information regarding the establishment of the gut microbiome in children born moderately and late preterm, representing the majority of children born preterm. Specific pro- and prebiotics may reverse the proinflammatory gut microbiome composition during the vulnerable period, when the microbiome is low in resilience and susceptible to environmental exposure and simultaneously promotes immunological and metabolic maturation.

Background: Evidence suggests that accelerated postnatal growth in children is detrimental for adult cardiovascular health. It is unclear whether children born late preterm (34–36 weeks) compared to full term (≥ 39 weeks), have different growth trajectories. Our objective was to evaluate the association between gestational age groups and growth trajectories of children born between 2006–2014 and followed to 2021 in Ontario, Canada. Methods: We conducted a retrospective cohort study of children from singleton births in TARGet Kids! primary care network with repeated measures of weight and height/length from birth to 14 years, who were linked to health administrative databases. Piecewise linear mixed models were used to model weight (kg/month) and height (cm/month) trajectories with knots at 3, 12, and 84 months. Analyses were conducted based on chronological age. Results: There were 4423 children included with a mean of 11 weight and height measures per child. The mean age at the last visit was 5.9 years (Standard Deviation: 3.1). Generally, the more preterm, the lower the mean value of weight and height until early adolescence. Differences in mean weight and height for very/moderate preterm and late preterm compared to full term were evident until 12 months of age. Weight trajectories were similar between children born late preterm and full term with small differences from 84–168 months (mean difference (MD) -0.04 kg/month, 95% CI -0.06, -0.03). Children born late preterm had faster height gain from 0–3 months (MD 0.70 cm/month, 95% CI 0.42, 0.97) and 3–12 months (MD 0.17 cm/month, 95% CI 0.11, 0.22). Conclusions: Compared to full term, children born late preterm had lower average weight and height from birth to 14 years, had a slightly slower rate of weight gain after 84 months and a faster rate of height gain from 0–12 months. Follow-up is needed to determine if growth differences are associated with long-term disease risk. [ABSTRACT FROM AUTHOR]

OBJECTIVE: We aimed to evaluate surfactant frequency and surfactant indications, as well as lung problems in late preterm infants. STUDY DESIGN: This retrospective and cross-sectional study was carried out by HSU Izmir Dr. Behcet Uz Pediatric Diseases and Surgery Research and Training Hospital. Infants who were born late preterm between January 2016 and January 2022 were hospitalized in the NICU due to respiratory distress in the first 24 hours. Lung problems and surfactant administration of these infants were evaluated. The frequency of surfactant dosages, their indications, and their effects were examined. As the control group, patients who were admitted to the NICU in the same period due to respiratory distress with similar indications but did not receive surfactant were considered. RESULTS: It was observed that surfactant was not administered to 105 infants and surfactant was administered to 106 infants. The median gestational week of the infants included in the study was 35 (34/36) weeks and the birth weight was 2185 (1780/2590) grams. A significant difference was observed in birth weight between the groups (p<0.001). Invasive ventilation was required in 52.1% of all cases and noninvasive ventilation was required in 33.6%. In the delivery room, the need for resuscitation and intubation was higher in the group requiring surfactant (p=0.001). The most common lung pathology in the surfactant group was RDS. CONCLUSION: It must not be forgotten that infants who are born late preterm infants are preterm infants and the evaluation of antenatal steroid administration must not be ignored. [ABSTRACT FROM AUTHOR]

Objective This study aimed to evaluate if early (within the first 3 hours after birth) transient neonatal hypoglycemia (TNH) is associated with poor academic performance in infants at-risk for hypoglycemia. Study Design This was a retrospective cohort study of at risk-infants (late preterm infants, small and large for gestational age infants, and infants of diabetic mothers [IDMs]) who were born in 1998 and 1999 at the University of Arkansas for Medical Sciences and had ≥1 recorded glucose concentration. The outcome measure was proficiency on 4th grade literacy and mathematics achievement tests. Three glucose concentration cutoffs for defining hypoglycemia (<35, <40, and <45 mg/dL) were investigated. Logistic regression models were developed to examine the association between early TNH and achievement test proficiency based on perinatal factors. Results Among 726 infants, 472 had one, 233 had two, and 21 had three risk factor(s). Early TNH (glucose concentration <35, <40, and <45 mg/dL) was observed in 6.3, 11.6, and 20.5% of the study cohort, respectively. Irrespective of the cutoff used, the frequency of early TNH (number of patients with early TNH in a risk category divided by the total number of patients in that category) was significantly greater among infants with multiple risk factors. After controlling for perinatal factors, early TNH (cutoffs <35 and <40 mg/dL) was significantly associated with decreased probability of proficiency in literacy but not mathematics. Despite that early TNH was more common in IDMs and infants with three risk factors, the category or number of risk factors did not impact academic proficiency. Conclusion Early TNH (<35 and <40 mg/dL) was associated with lower adjusted probability of proficiency on 4th grade literacy achievement tests in at-risk infants. The impact of early TNH on academic performance was similar irrespective of category or number of risk factors. Key Points Transient hypoglycemia was associated with lower proficiency on 4th grade tests in at-risk infants. The category of risk factors among at-risk infants did not impact 4th grade academic proficiency. The number of risk factors among at-risk infants did not impact 4th grade academic proficiency. [ABSTRACT FROM AUTHOR]

Psychopathology has not yet been studied beyond pediatric age for all degrees of prematurity, including late-preterm, particularly in those who grew up with no apparent neurodevelopmental sequelae. This study aimed to examine psychopathological outcome following preterm birth and admission to neonatal intensive care in young adults without major neurodevelopmental and psychopathological problems that emerged during childhood. An Italian single-center prospective cohort study. Eighty-nine young adults (40 admitted to neonatal intensive care unit with less than 37 weeks of gestation and no medical history of other neurological or psychiatric conditions in childhood and 49 healthy peers born at term, matched by age, sex, and education) underwent neuropsychiatric interviews at the age of 20 ± 1 years; MINI International Neuropsychiatric Interview, Beck Depression Inventory and Barratt Impulsive Scale, results were correlated to individual neonatal data and cognitive measures. We found a significantly higher prevalence of psychopathology at MINI score (22.5% vs. 4.2%; χ2 = 6.7; p = 0,010) and prevalence of previous stressful life events in the preterm compared to at-term group. B.D.I. (testing depression) and BIS-11(testing impulsivity) did not highlight a statistically significant difference between the groups. All patients had average I.Q., a statistically significant difference (p < 0.001) was observed between groups with a better performance in controls than cases. Preterm infants attaining young adult age with otherwise typical development during childhood are at risk of psychopathology and lower resilience to stressful life events. The MINI interview could be a useful tool to highlight the psychopathology of preterm infants attaining adult age. • Young adults born late-preterm NICU admitted are at risk for psychopathology similarly to those born very preterm. • The MINI interview could be a useful tool to highlight the psychopathology of ex-preterm adults. • Mood disorders and anxiety can emerge in adults born preterm without psichopatology in childhood. • A reduced resilience to stressful life events seems to be associated with the psychopathological outcome of the preterm birth. • Early dysregulation of mechanisms that modulate emotional and social adjustment may affect mental health in adulthood. [ABSTRACT FROM AUTHOR]

Context: In India, late preterm babies are susceptible to retinopathy of prematurity (ROP). This study is done to assess the incidence of ROP and also to analyze the risk factors involved in the development of ROP in preterm babies between 34 and 36 weeks of gestation. Aims: Risk factor analysis of ROP in late preterm babies. Settings and Design: This is a prospective observational study done in a tertiary-level multispecialty hospital between January 2020 and January 2022. Materials and Methods: Two hundred and eleven preterm babies born between 34 and 36 weeks of gestation were included in the study. Their systemic comorbidities were identified after reviewing their hospital records. They were followed up till their retina reached maturity. Statistical Analysis: It was carried out using SPSS software version 17. Results: The incidence of ROP was 6.2%. Twelve (92.3%) babies belonged to type 2 ROP. All these babies had a spontaneous resolution of ROP and did not require any intervention. One (7.7%) baby born at 36 weeks of gestation with a birth weight of 1.5 kg, presented at 52 weeks of gestation with Stage 5B of ROP in both eyes. Using univariate regression analysis, SGA status, pleural effusion, chylothorax, congestive cardiac failure, congenital diaphragmatic hernia, hypoxic–ischemic encephalopathy, and any intervention were found to be statistically significant. On multivariate analysis, SGA status and hypoxic–ischemic encephalopathy were statistically significant. Conclusions: All preterm babies born before 37 weeks of gestation should have at least one ROP screening to prevent the development of sight-threatening ROP.

Objective: Our aim was to compare vitamin D levels of late preterm and term babies measured at birth and at postnatal 4th month. Material and Methods: One hundred four late preterm infants (group I) and 118 term infants (group II) were enrolled in the study. Maternal age, parity, morbidities related to pregnancy, educational status, sun exposure, dressing style and use of multivitamin supplements were recorded. Gestational age, birth weight, height, head circumference, sex of infants were also recorded. Umbilical cord blood was collected from all participants and cord blood 25-OH vitamin D levels were measured. Oral vitamin D 3 supplementation (400 IU) was started on postnatal 15th day for all babies. Vitamin D measurements were repeated at the postnatal fourth month. Serum 25-OH vitamin D concentrations were measured by chemiluminescence assay. The results were evaluated statistically. Results: Mean umbilical cord 25-OH vitamin D levels of groups I and II were 7.6+-6.6 ng/mL and 7.5+-6.5 ng/mL, respectively (p=0.835). Eighty-four percent of infants in group I and 78% of infants in group II had severe vitamin D deficiency (

Abstract Objective To compare the effects of an incomplete course and more than 1 course of dexamethasone, relative to a control of a single complete course, on foetal respiratory problems and other adverse outcomes of preterm birth. Methods This was a retrospective chart review of 1800 women with preterm delivery. Data were collected on newborns whose mothers administered 1 full course of dexamethasone (916/1800; 50.9%), a partial course (716/1800; 39.8%) and more than 1 course (168/1800; 9.3%). Demographic data and adverse maternal and neonatal outcomes were recorded. Results Preterm singleton newborns whose mothers received several steroid hormone courses were significantly more likely to have adverse outcomes than newborns of mothers given 1 course. The negative outcomes were the need for positive pressure ventilation ([aOR] 1.831; 95% CI, (1.185,2.829); P = 0.019), ventilator support ([aOR] 1.843; 95% CI, (1.187,2.861); P = 0.011), and phototherapy ([aOR] 1.997; 95% CI, (1.378,2.895); P

The late preterm infants (34 0/7 to 36 6/7 weeks of gestation) account for at least 70% of all preterm birth. Our aim was to detect growth and neurodevelopment outcome, incidence of neurodevelopmental disability, and its association with maternal and neonatal risk factors among sick late preterm population. Two hundred and ninety-nine late preterm infants were followed up till corrected 2 years of age in this retrospective cohort study. Assessment was done by anthropometry and Developmental Assessment Scale for Indian Infants (DASII) scale at corrected 2 years of age. Presence of visual and hearing impairment, cerebral palsy, and overall neurodevelopmental impairment were also recorded. At 2 years of corrected age, average motor development quotient (DMoQ) was 93.55 (95% CI 90.9 to 96.20) and average mental development quotient (DMeQ) was 89.59 (95% CI 87.13 to 92.04). The incidence of bilateral severe to profound hearing loss and visual loss were found in 6 (2%) and 4 (1.33%) infants, respectively. Severe neurodevelopmental impairment was found in 19 (6.35%) infants. Central nervous system disease and sepsis were found as independent predictors of moderate to severe neurodevelopmental disability. Conclusion: Late preterm infants admitted in neonatal units were at risk of growth and neurodevelopmental impairment requiring close neurodevelopmental follow-up. In a resource limited setting, this may best be achieved by using DASII in follow-up clinic. What is Known: • Late preterm infants are at a high risk of prematurity-related morbidities. • There is increased risk of cognitive defect, learning difficulties, and behavior problems found at school age for sick late preterm infants. What is New: • Central nervous system disease and sepsis were found as independent predictors of early moderate to severe neurodevelopmental impairment for sick late preterm infants in developing countries like India. [ABSTRACT FROM AUTHOR]

Background: Of all preterm births, approximately 82% are moderate to late preterm. Moderate to late preterm infants are often treated like full-term infants despite their physiological and metabolic immaturity, increasing their risk for mortality and morbidity. Purpose: To describe the relationship between routine caregiving methods and physiological markers of stress and hypoxemia in infants born between 32 and 366/7 weeks' gestation. Methods: This descriptive study used a prospective observational design to examine the relationship between routine caregiving patterns (single procedure vs clustered care) and physiological markers of stress and hypoxemia such as regional oxygen saturation, quantified as renal and cerebral regional oxygen saturation (StO2), systemic oxygen saturation (Sp o 2), and heart rate (HR) in moderate to late preterm infants. Renal and cerebral StO2 was measured using near-infrared spectroscopy during a 6-hour study period. Sp o 2 and HR were measured using pulse oximetry. Results: A total of 231 procedures were captured in 37 participants. We found greater alterations in cerebral StO2, renal StO2, Sp o 2, and HR when routine procedures were performed consecutively in clusters than when procedures were performed singly or separately. Implications for Practice and Research: Our results suggest that the oxygen saturation and HR of moderate to late preterm infants were significantly altered when exposed to routine procedures that were performed consecutively, in clusters, compared with when exposed to procedures that were performed singly or separately. Adequately powered randomized controlled trials are needed to determine the type of caregiving patterns that will optimize the health outcomes of this vulnerable population. [ABSTRACT FROM AUTHOR]

Late-preterm and early-term births constitute a significant proportion of live births. However, handwriting skills of these two populations remain unclear. We aimed to investigate their risk for poor Chinese handwriting in grade two. In this observational study, 185 second graders born late preterm (34+0–36+6 weeks' gestation, n = 54), early term (37+0–38+6 weeks' gestation, n = 56), and full term (39+0–41+6 weeks' gestation, n = 75) without any intervention or diagnosis related to developmental delays were included. Their handwriting performance was rated by class teachers using the Chinese Handwriting Evaluation Form (CHEF), which is a standardized handwriting scale including five handwriting dimensions (construction, accuracy, directionality, speed, and pencil grasp). After controlling for demographic risk factors, the late-preterm born group had a greater risk of having worse performance in the full form (adjusted odds ratio [aOR] = 3.93; p =.038) and construction dimension (aOR = 4.77; p =.009) of the CHEF than peers born at full term, whereas the risks were comparable for the early- and full-term born groups (aOR = 0.14–1.90; p =.073–0.453 in the handwriting dimensions). Late-preterm but not early-term born children were found to be at higher risk for poor Chinese handwriting in grade two. They particularly have difficulty with spatial construction including size, spacing, and alignment of Chinese characters and components that may influence handwriting legibility. [ABSTRACT FROM AUTHOR]

Background: The risk factors for anemia of prematurity (AOP) among late preterm infants are unelucidated. We identified risk factors for declining hemoglobin (Hb) concentration and triggering factors for AOP treatment in infants born at 30-35 gestational weeks. Methods: From 2012 to 2020, we conducted a single-center retrospective study of infants born at 30-35 weeks of gestation without congenital anomalies or severe hemorrhage. The primary outcome was AOP development, defined by initiation of treatments including red blood cell transfusion, subcutaneous injections of erythropoietin, and iron supplementation. A multivariable logistic regression model was used to investigate potential risk factors for AOP. Results: A total of 358 infants were included. Lower gestational age (odds ratio, 0.19; 95% confidence interval 0.11-0.32), small for gestational age (SGA; 7.17, 2.15-23.9), low maternal Hb level before birth (0.66, 0.49-0.87), low Hb at birth (0.71, 0.57-0.89), and multiple large blood samplings (1.79; 1.40-2.29) showed significantly higher odds for AOP development. Conclusions: Gestational age, SGA, low maternal Hb before birth, Hb at birth, and high number of large blood samplings were positively associated with AOP development in infants born at 30-35 gestational weeks. [ABSTRACT FROM AUTHOR]

Objective In the antenatal late preterm steroids (ALPS) trial betamethasone significantly decreased short-term neonatal respiratory morbidity but increased the risk of neonatal hypoglycemia, diagnosed only categorically (<40 mg/dL). We sought to better characterize the nature, duration, and treatment for hypoglycemia. Study Design Secondary analysis of infants from ALPS, a multicenter trial randomizing women at risk for late preterm delivery to betamethasone or placebo. This study was a reabstraction of all available charts from the parent trial, all of which were requested. Unreviewed charts included those lost to follow-up or from sites not participating in the reabstraction. Duration of hypoglycemia (<40 mg/dL), lowest value and treatment, if any, were assessed by group. Measures of association and regression models were used where appropriate. Results Of 2,831 randomized, 2,609 (92.2%) were included. There were 387 (29.3%) and 223 (17.3%) with hypoglycemia in the betamethasone and placebo groups, respectively (relative risk [RR]: 1.69, 95% confidence interval [CI]: 1.46–1.96). Hypoglycemia generally occurred in the first 24 hours in both groups: 374/385 (97.1%) in the betamethasone group and 214/222 (96.4%) in the placebo group (p = 0.63). Of 387 neonates with hypoglycemia in the betamethasone group, 132 (34.1%) received treatment, while 73/223 (32.7%) received treatment in placebo group (p = 0.73). The lowest recorded blood sugar was similar between groups. Most hypoglycemia resolved by 24 hours in both (93.0 vs. 89.3% in the betamethasone and placebo groups, respectively, p = 0.18). Among infants with hypoglycemia in the first 24 hours, the time to resolution was shorter in the betamethasone group (2.80 [interquartile range: 2.03–7.03) vs. 3.74 (interquartile range: 2.15–15.08) hours; p = 0.002]. Persistence for >72 hours was rare and similar in both groups, nine (2.4%, betamethasone) and four (1.9%, placebo, p = 0.18). Conclusion In this cohort, hypoglycemia was transient and most received no treatment, with a quicker resolution in the betamethasone group. Prolonged hypoglycemia was uncommon irrespective of steroid exposure. Key Points Hypoglycemia was transient and approximately two-thirds received no treatment. Neonates in the ALPS trial who received betamethasone had a shorter time to resolution than those with hypoglycemia in the placebo group. Prolonged hypoglycemia occurred in approximately 2 out of 100 late preterm newborns, irrespective of antenatal steroid exposure. [ABSTRACT FROM AUTHOR]

Introduction: prematurity is the first cause of neonatal and infant morbidity and mortality and shows complications, both in early term and late preterm neonates. Objective: to characterize the behavior of late preterm and early term neonates assisted at the Neonatology Service of the Mariana Grajales University Hospital of Gynecology and Obstetrics during the period from January to December 2019. Methods: an observational, descriptive and cross-sectional research was carried out from January to December 2019; the population consisted of 519 neonates. Results: maternal ages between 18 and 34 years of age predominated in both groups and the extreme ages in the early term group with respect to the late preterm group stood out. The most frequent neonatal morbidity in both groups was jaundice, physiological icterus aggravated by prematurity in the late preterm group and metabolic disorders in the early term group. Conclusions: the early term group predominated over the late preterm group. Male gender and low birth weight were more frequent in the late preterm group and female gender and normal weight in the early term group and almost all the newborns were alive at medical discharge. [ABSTRACT FROM AUTHOR]

Aim and Objective: To determine the efficacy of antenatal corticosteroids given in the late preterm period. Methodology: We conducted a retrospective case–control study on patients with singleton pregnancies who were at a risk of delivering in the late preterm period (34 weeks to 36 weeks 6 days). A total of 126 patients who had received antenatal corticosteroids (prenatal administration of either betamethasone or dexamethasone, minimum one dose) during the late preterm period were taken as cases, and 135 patients who had not received steroids antenatally due to various reasons, for example, who were clinically unstable, presented with active bleeding, non-reassuring foetal status that obligated an imminent delivery and those in active labour were included as controls. The various neonatal outcomes like APGAR score at one and five minutes, incidence of admission and duration of stay in neonatal intensive care unit (NICU), respiratory morbidity, requirement of assisted ventilation, intraventricular haemorrhage (IVH) necrotizing enterocolitis, transient tachypnea of the newborn, respiratory distress syndrome, use of surfactant, neonatal hypoglycaemia, hyperbilirubinemia requiring phototherapy, sepsis and neonatal mortality were compared between the two groups. Results: The baseline characteristics of both groups were comparable. There was a lower incidence of admissions to neonatal intensive care unit (NICU) (15% vs. 26%, p = 0.05), respiratory distress syndrome (5% vs. 13%, p = 0.04), requirement of invasive ventilation (0% vs. 4%, p = 0.04) and hyperbilirubinemia requiring phototherapy (24% vs. 39%, p = 0.02) in the babies of the group that received steroids compared to the control group. The rate of overall respiratory morbidity in the neonates was lowered after giving steroids (16% vs. 28%, p = 0.04). The incidence of neonatal necrotizing enterocolitis, hypoglycaemia, IVH, TTN, sepsis and mortality between the two groups was not significant (p > 0.05). Conclusion: Antenatal corticosteroids administered to patients between 34 and 36 weeks 6 days of gestation reduce respiratory morbidity, requirement of invasive ventilation, respiratory distress syndrome, hyperbilirubinemia requiring phototherapy and the incidence of NICU admissions in the newborns. [ABSTRACT FROM AUTHOR]

ObjectivesThe study aims to investigate whether the time interval between administering antenatal corticosteroids (ACS) and delivery influences the neonatal outcomes in late preterm (LPT) neonates (34 + 0 to 36 + 6 weeks) born to mothers with diabetes.Study designThis retrospective cohort study included women with any type of diabetes who gave birth between 34 + 0 weeks and 36 + 6 weeks of gestation. Based on the time interval between the first dose of corticosteroid and delivery, the cases were stratified into the following groups: 7 days. Women unexposed to ACS served as the control group. The primary outcomes included the incidence of neonatal hypoglycemia and respiratory distress syndrome/transient tachypnea of the newborn. Multivariate logistic regression was used to assess the relationship between the time interval and neonatal outcomes and adjust for potential confounders.ResultsThe study enrolled a total of 636 parturients. Among them, 247 (38.8%) delivered within 2 days after ACS administration, 169 (26.6%) within 2–7 days, and 126 (19.8%) at >7 days. Baseline characteristics such as type of diabetes, methods of glycemic control, preterm premature rupture of membrane, placenta previa, cesarean delivery, indication for delivery, percentage of large for gestational age, birth weight, and HbA1c in the second or third trimester were significantly different among the four groups. The multivariate analysis showed no statistically significant difference in the incidence of primary or secondary neonatal outcomes between the case and control groups.ConclusionsACS treatment was not associated with neonatal hypoglycemia and respiratory outcomes in LPT neonates born to diabetic mothers, regardless of the time interval to delivery.

Challenging the assumption of uniform nutritional needs in preterm feeding, this study identifies crucial sex-specific disparities in formula milk intake and growth among late preterm infants. Premature infants have difficulty regulating their oral intake during feeds, which is why clinicians prescribe feeding volume, calories, and protein via the nasogastric route. However, premature male and female infants have different body compositions at birth, and, subsequently, there is no evidence to suggest that male and female preterm infants differ in their nutritional consumption once they begin feeding ad libitum. This study investigates whether there are any differences in the volume and nutrient intake between the sexes when fed formula ad libitum. Methods: The study involved a retrospective analysis of preterm infants admitted to the NICU and evaluated between 34 0/7 and 36 6/7 weeks of corrected gestation. Late preterm infants appropriate for gestational age who were spontaneously fed formula milk ad-lib and free of any respiratory support for at least two days were included. The study excluded infants with short gut syndrome, severe chromosomal anomalies, or congenital heart conditions. We included 85 male and 85 female infants in this study. The data collected included sex, gestational age, birth weight, anthropometric data at birth, maternal data, nutritional intake, and neonatal morbidity. Results: This study found that female infants consumed more volume, protein, and calories than male infants. The mean formula intake in female and male infants was 145.5 ± 20.8 mL/kg/d and 135.3 ± 19.3 mL/kg/d, respectively, with p = 0.002. However, ad-lib feeding duration was not different between the sexes. Growth velocity was also higher in female infants. Conclusions: This study is the first to demonstrate differences in formula milk intake among late preterm infants fed ad libitum. Additional research is needed to confirm our findings and understand sex-specific differences in neonatal nutrition in extremely early preterm infants.

Abstract Background Twins and late preterm (LPT) infants are at an increased risk of being breastfed to a lesser extent than term singletons. This study aimed to describe the initiation and duration of any and exclusive breastfeeding at the breast for mothers of LPT twins and term twins during the first 4 months and to explore the breastfeeding experiences of mothers of LPT twins. Methods A sequential two-sample quantitative–qualitative explanatory mixed-methods design was used. The quantitative data were derived from a longitudinal cohort study in which 22 mothers of LPT twins and 41 mothers of term twins answered questionnaires at one and four months after birth (2015–2017). The qualitative data were obtained from semi-structured interviews with 14 mothers of LPT twins (2020–2021), based on results from the quantitative study and literature. Analysis included descriptive statistics of quantitative data and deductive content analysis of the qualitative data, followed by condensation and synthesis. Results All mothers of LPT twins (100%) and most mothers of term twins (96%) initiated breastfeeding. There was no difference in any breastfeeding during the first week at home (98% versus 95%) and at 1 month (88% versus 85%). However, at 4 months, the difference was significant (44% versus 75%). The qualitative data highlighted that mothers of LPT twins experienced breastfeeding as complex and strenuous. Key factors influencing mothers’ experiences and decisions were their infants’ immature breastfeeding behaviors requiring them to express breast milk alongside breastfeeding, the burden of following task-oriented feeding regimes, and the lack of guidance from healthcare professionals. As a result, mothers started to question the worth of their breastfeeding efforts, leading to changes in breastfeeding management with diverse results. Support from fathers and grandparents positively influenced sustained breastfeeding. Conclusions Mothers of LPT twins want to breastfeed, but they face many challenges in breastfeeding during the first month, leading to more LPT twins’ mothers than term twins’ mothers ceasing breastfeeding during the following months. To promote and safeguard breastfeeding in this vulnerable group, care must be differentiated from routine term infant services, and healthcare professionals need to receive proper education and training.

BackgroundPreterm infants born between 33 and 35 weeks of gestational age (wGA) have been considered a “major underserved population” and ineligible to receive palivizumab (PLV), the only drug authorized to date for respiratory syncytial virus (RSV) prophylaxis, by current international guidelines. In Italy, such a vulnerable population is currently eligible for prophylaxis, and, in our region, specific risk factors are taken into consideration (SINLazio score) to target prophylaxis for those at highest risk. Whether the adoption of less or more restrictive eligibility criteria for PLV prophylaxis would translate into differences in bronchiolitis and hospitalization incidence is not known.Materials and methodsA retrospective analysis was conducted in 296 moderate-to-late preterm infants (born between 33 and 35+6 weeks) who were being considered for prophylaxis in two epidemic seasons: 2018–2019 and 2019–2020. The study participants were categorized according to both the SINLazio score and the Blanken risk scoring tool (BRST), which was found to reliably predict RSV-associated hospitalization in preterm infants on the basis of three risk factor variables.ResultsBased on the SINLazio score, approximately 40% of infants (123/296) would meet the criteria to be eligible for PLV prophylaxis. In contrast, none of the analyzed infants would be considered eligible for RSV prophylaxis on the basis of the BRST. A total of 45 (15.2%) bronchiolitis diagnoses were recorded on average at 5 months of age in the overall population. Almost seven out of 10 (84/123) patients exhibiting ≥3 risk factors to be eligible for RSV prophylaxis according to SINLazio criteria would not be receiving PLV if they were categorized on the basis of the BRST. Bronchiolitis occurrence in patients with a SINLazio score ≥3 was approximately 2.2 times more likely than that in patients with a SINLazio score

ObjectivesWe aimed to compare the effects of nutrient-enriched formula with standard term formula on rate of body weight gain of late preterm infants appropriately grown for gestational age.Study designA multi-center, randomized, controlled trial. Late preterm infants (34–37 weeks' gestation), with weight appropriate for gestational age (AGA), were randomized to nutrient enriched formula (NEF) with increased calories (22 kcal/30 ml) from protein, added bovine milk fat globule membrane, vitamin D and butyrate or standard term formula 20 kcal/30 ml (STF). Breastfed term infants were enrolled as an observational reference group (BFR). Primary outcome was rate of body weight gain from enrollment to 120 days corrected age (d/CA). Planned sample size was 100 infants per group. Secondary outcomes included body composition, weight, head circumference and length gain, and medically confirmed adverse events to 365 d/CA.ResultsThe trial was terminated early due to recruitment challenges and sample size was substantially reduced. 40 infants were randomized to NEF (n = 22) and STF (n = 18). 39 infants were enrolled in the BFR group. At 120 d/CA there was no evidence of a difference in weight gain between randomized groups (mean difference 1.77 g/day, 95% CI, −1.63 to 5.18, P = 0.31). Secondary outcomes showed a significant reduction in risk of infectious illness in the NEF group at 120 d/CA [relative risk 0.37 (95% CI, 0.16–0.85), P = 0.02].ConclusionWe saw no difference in rate of body weight gain between AGA late preterm infants fed NEF compared to STF. Results should be interpreted with caution due to small sample size.Clinical Trial RegistrationThe Australia New Zealand Clinical Trials Registry (ACTRN 12618000092291). “mailto:maria.makrides@sahmri.com” maria.makrides@sahmri.com.

Objective: The aim of this study is to evaluate the possible role of antenatal administration of corticosteroids for fetal lung maturation on short term perinatal outcomes in late FGR.Methods: This cohort study is a secondary analysis of a multicenter prospective observational study, the TRUFFLE-2 feasibility study, conducted between 2017 and 2018 in 33 European perinatal centers. We included women with singleton pregnancy from 32+0 to 36+6 weeks of gestation with a fetus considered at risk for FGR, defined as estimated fetal weight (EFW) or abdominal circumference (AC) <10th centile, or umbilico-cerebral ratio (UCR) >95th centile, or a fall of more than 40 centile points in AC measurement from the 20 weeks scan. The primary adverse outcome was a composite of abnormal condition at birth or major neonatal morbidity.Results: A total of 86 pregnancies who received antenatal corticosteroids (exposed) were matched with non-exposed pregnancies. Both groups were similar regarding gestational age at inclusion (33 weeks), EFW (1673 g) and UCR (0.68), gestational age at delivery (35.5 weeks) and birth weight (1925 g); the presented values are for both groups combined. No significant differences were observed between exposed and non-exposed for composite adverse outcome (28% vs. 24%; p=0.73) or for any of its elements.Conclusion: The present data do not show a beneficial effect of steroids on short term outcomes in fetuses with late FGR. This article is protected by copyright. All rights reserved. [ABSTRACT FROM AUTHOR]

To explore whether antenatal dexamethasone impacts postnatal serum cortisol levels in stable late preterm (LPT) infants. Secondary outcomes were to identify short-term hospital outcomes related to antenatal dexamethasone exposure. A prospective cohort study of serial serum cortisol levels in LPT infants within 3 h of birth, and at 1, 3, and 14 postnatal days. Serum cortisol levels were compared between infants exposed to antenatal dexamethasone >3 h and <14 days prior to delivery (aDex) and those who either did not receive dexamethasone or were exposed < 3 h or >14 days prior to delivery (no-aDex). Thirty-two LPT infants (aDex) were compared with 29 infants (no-aDEX). Group demographic characteristics were similar. Serum cortisol levels were identical between the groups at all 4-time points. Cumulative antenatal dexamethasone exposure ranged from 0 to 12 doses. Post-hoc analysis of the 24-hour serum cortisol levels indicated a significant difference between 1 to 3 cumulative doses versus 4 or more doses (p =.01). Only 1 infant in the aDex group had a cortisol level <3rd percentile of the reference value. Rates of hypoglycemia (absolute difference [95% CI] − 1.0 [–16.0,15.0]; p =.90) and mechanical ventilation were similar in both groups (absolute difference [95%CI] − 0.3 [–9.3,8.7]; p =.94). No deaths occurred. Antenatal dexamethasone administered 14 days prior to delivery did not affect serum cortisol levels and short-term hospital outcomes in stable LPT infants. Exposure to low cumulative doses of dexamethasone resulted in transient low serum cortisol levels compared to 4 or more doses only at 24-hours. [ABSTRACT FROM AUTHOR]

Background: Guidelines from prominent policymakers on the use of antenatal steroids (ANS) in "late preterm deliveries and early term casearian deliveries" (LET) are nonuniform. This descriptive study compared LET infants born during two-time epochs: Retrospective: ANS exposed (ANSE) (when institute practice was to administer ANS to all LET mothers), and prospective - ANS unexposed (ANSU) (after the policy was revised in May 2021). Methodology: All antenatal mothers of anticipated late-preterm and early-term cesarean deliveries were being administered ANS before May 2021. Following the revision of hospital policy, this practice was discontinued. Comparative analysis for respiratory morbidity (RM) and other clinically relevant outcomes were conducted in infants born during two-time epochs (ANSE vs. ANSU). Results: Among 379 included infants, those with RMs were comparable between groups: 33 (17.5%) in ANSE; 31 (16.4%) in ANSU - Odds ratio (OR) 1.08; 95% confidence interval (CI) (0.61-1.92), P = 0.78. No difference was noted in hypoglycemia events: 23 (12.2%) in ANSE; 22 (11.6%) in ANSU, OR = 1.05 95% CI (0.56-1.96), P = 0.87. Conclusion: ANS in LET did not seem to reduce the risk of RM. It may be appropriate to audit individual unit practices and relevant outcomes before blanket recommendations are made. [ABSTRACT FROM AUTHOR]

The usefulness of cervical length (CL) measurement in asymptomatic pregnancies in the third trimester of pregnancy is not certain. Therefore, the objective of this study was to assess the performance of CL measurement at 31–34 gestational weeks for the prediction of spontaneous late preterm birth (PTB). This was a prospective study of women with a singleton pregnancy, who had their routine third-trimester scan at 31–34 weeks. The CL was measured transvaginally and was tested, together with maternal demographic and obstetric parameters, for the prediction of late PTB (34 to 36 weeks), using logistic regression and ROC curve analysis. Overall, from a population of 1003 women that consented to participate in the study, 42 (4.2%) delivered at 34–36 gestational weeks. A significant association was identified between gestational age at birth and CL (rho = 0.182, p <.001), and there were significant differences in the CL between cases of late preterm and term births (p <.001). Cervical length alone could predict 17% of late PTB for a 10% false positive rate, corresponding to 22 mm. A model combining CL with parity and method of conception can identify 35% of pregnancies resulting in late PTB, at a false positive rate of 10% (AUC: 0.750; 95% CI: 0.675–0.824). CL assessment at 31–34 gestational weeks may contribute to the prediction of late PTB when combined with maternal characteristics. [ABSTRACT FROM AUTHOR]