Late Preterm Neonates Research Articles

Comparison of BiliCocoon phototherapy with overhead phototherapy in hyperbilirubinemic neonates. A randomized clinical trial.

Around 2-6% of term or late preterm neonates receive phototherapy for hyperbilirubinemia. Standard treatment today is overhead phototherapy. A new device has been developed, the BiliCocoon, where the neonates are "wrapped" presumably making them more comfortable. The aim was to compare the efficacy and performance of the BiliCocoon with overhead LED phototherapy. A randomized open-label multicenter trial in three Danish neonatal units. Healthy hyperbilirubinemic neonates, gestational age ≥33 weeks and postnatal age 24 h to 14 days were randomized to 24 hours' of treatment with BiliCocoon or overhead blue LED phototherapy with an equal level of irradiance. A mixed effect model with random effect by center was used to compare the percentage decrease in total serum bilirubin (TSB) between the treatments. Totally 83 neonates were included. Mean TSB reduction in the BiliCocoon group (N = 42), adjusted for baseline TSB, was significantly lower than in the overhead LED group (N = 41), 29% vs. 38% (p-value < 0.01). Overall difference in temperature by treatment (BiliCocoon vs overhead) was 0.70 [0.37; 1.02] °C, p-value < 0.01. Bilirubin reducing efficacy of BiliCocoon was lower than that of overhead phototherapy, but it was sufficient for nearly all neonates during 24 hours of treatment. The BiliCocoon has a bilirubin reducing efficacy, sufficient for almost all neonates during 24 hours of phototherapy. The BiliCocoon does not have an equal bilirubin reducing efficacy as overhead phototherapy. The duration of light exposure was longer for the neonates treated in the BiliCocoon. A few neonates can be exclusively breastfed in the BiliCocoon throughout the treatment. The reason for stopping breastfeeding in the BiliCocoon was most often, that the neonates developed hyperthermia.

Oral sildenafil versus bosentan for treatment of persistent pulmonary hypertension of the newborn: a randomized controlled trial

BackgroundAccess to inhaled nitric oxide (iNO) is limited in low resource settings due to non-availability and high cost. There is a need for research on low-cost alternative therapies for management of persistent pulmonary hypertension of the newborn (PPHN). We aimed to compare oral sildenafil and bosentan as monotherapy in the treatment of neonates with PPHN.Study designIn this single-centre open-label randomized controlled trial (RCT), term and late preterm neonates with PPHN, defined as pulmonary arterial systolic pressure (PASP) > 35 mmHg and requiring fraction of inspired oxygen (FiO2) > 0.21, were randomized to receive oral sildenafil and bosentan. The primary outcome was reduction of PASP by 25% within 48 h after start of drug.ResultsThirty-six neonates were analyzed (18 in each group). Initial PASPs were similar in both groups. The median (IQR) time for the primary outcome (PASP to reduce by 25% within 48 h) was 36 (24–48) h and 96 (48–120) h in sildenafil and bosentan groups respectively (p = 0.008). There was also a higher need to add other pulmonary vasodilators in bosentan group as compared to sildenafil group (p = 0.006).ConclusionSildenafil was associated with quicker reduction of PASP and FiO2 in neonates with PPHN, as compared to bosentan. Large multicentre blinded trials to assess efficacy and safety of bosentan in comparison with other pulmonary vasodilators would help to get a clearer understanding of its role in the management of PPHN, particularly for use in resource-limited settings that lack iNO.Clinical trial registration:https://ctri.nic.in/Clinicaltrials/rmaindet.php? trialid=63997&EncHid=39716.16132&modid=1&compid=19[CTRI/2022/06/043328].

Survival and Risk Factors for Late Preterm and Early Term Neonates Compared to Full-Term Infants at Garissa County Referral Hospital, Kenya

Preterm birth constitutes a significant health burden in Kenya, yet there is hardly any targeted research looking at the survival and specific risk factors associated with birth of late preterm neonates (LPNs) and early term neonates (ETNs), particularly in Garissa County. While studies on preterm birth determinants have been done in Kenya, factors specifically influencing LPNs and ETNs births and their survival relative to their full-term counterparts remain understudied. Studies done on preterm in general have identified maternal age, history of preterm birth, pregnancy-induced hypertension, and prolonged premature rapture of the membrane among others as significant risk factors, but their relevance to LPNs and ETNs specifically has not been fully investigated. This study aimed to address these gaps by determining maternal as well as fetal risk factors associated with LPN and ETN births compared to full-term neonates (FTNs) born at Garissa County Referral Hospital. Further, it sought to identify predictors of survival across these neonatal groups. The study conducted at Garissa County Referral Hospital employed a prospective cohort design. Mother-neonate dyads were enrolled using convenience sampling method until the required sample was achieved. Data was collected using pretested and validated questionnaires. STATA version 17 was used for analysis. Multinomial logistic regression analysis was performed to determine Relative Risk Ratio. The P-value was set α=0.05 and P&lt;0.05 was considered statistically significant. Survival rates were estimated using Kaplan-Meier survival analysis. Bivariate Cox regression analysis was employed to identify independent predictors at p&lt;0.20. However, since all variables had p-values &gt;0.02, multivariate Cox regression was not conducted. The study revealed that maternal age (P=0.042), occupation (P=0.024), ethnicity (P=0.021), religion (P=0.016) and absence of previous abortion/still birth/premature deliveries (P=0.015) were maternal related factors associated with birth of LPN, ETN and FTN. Birth weight was associated with LPN (P&lt;0.001), while FTN had higher likelihood of delayed initiation of breastfeeding (P=0.038) but were less likely to have feeding difficulties compared to LPN and ETN (P=0.012). A comparison of fit model with the complete set of predictors with an intercept-only, or null model revealed that P-values for maternal (P=0.0175) and fetal (P&lt;0.001) related risk factors were less than Fisher’s value of 0.05, hence the null hypothesis was rejected. The Kaplan-Meier survival analysis revealed high survival rates across all gestational age categories, with 100% survival among LPNs. In conclusion, the study showed that maternal- and fetal-related risk factors associated with LPNs and ETNs are distinct from those of FTNs.

Regional Differences in Lung Ventilation During the Early Transition Period in Late Preterm and Term Neonates Assessed by Electrical Impedance Tomography

Background: Changes in lung ventilation are well documented in term neonates while in late preterm neonates these patterns are poorly understood despite their increased risk of respiratory morbidity. Objectives: The study aimed to compare and clarify the differences in regional lung ventilation of late preterm and term neonates during the early adaptation period using electrical impedance tomography (EIT). Material and methods: The case-control study was conducted in the years 2020–2022. It included 51 late preterm neonates (LPN, Study group) and 45 term neonates (TN, Control) born by normal vaginal delivery (NVD). EIT examinations were performed with a Swisstom BB2 (Switzerland) equipment. The data recordings were performed no later than 30 (I Record), 60 (II), and 90 (III) minutes after the birth. Results: Statistically significant differences between LPN and TN were observed in the non-dependent lung areas at I record, with more silent spaces observed in the LPN (p &lt; 0.001). Differences in the dependent lung regions were observed across all recordings, with LPN demonstrating more silent spaces (p &lt; 0.001). LPN demonstrated greater stretch-related changes in the 10% and 20% stretch categories across all recordings, while TN showed greater changes in the 50%, 70%, and 90% categories. Tidal volumes in the right lung of TN are distributed more towards the ventral and central ventral regions. In contrast, tidal volumes of LPN are distributed to the central dorsal and dorsal regions of the right lung. Conclusions: LPN during the first 90 min after the birth show reduced lung ventilation assessed by EIT, suggesting a possible impairment of early postnatal adaptation.

Clinical Profile and Outcomes of Late Preterm Neonates in Relation to Gestational Age and Maternal Psychosocial Factors in a Tertiary Care Centre

The relationship between maternal psychosocial factors and outcomes among LPN remains unexplored. Objectives: To determine the morbidity profile of LPN with respect to gestational age and study its association with maternal psychosocial, lifestyle and demographic factors. Methodology: Cross-sectional study on LPNs in a tertiary care centre over one year. Results: Total sample: 263. LPN incidence: 94/1000 live births; Maternal age 20-30 years (p=0.03), high screen time (p=0.02), Caesarean section (p=0.02), moderate Maternal Stress (MS) (p=0.014) was associated with (a/w) births at 35 0/6 to 6/7 weeks of gestation (WOG).Low Birth Weight (LBW) LPN: 66.5% incidence, highest at 35 0/6 to 6/7 WOG; a/w maternal age 20-30 (p=0.002), nulliparity (p=0.02), moderate to severe MS (p=0.012), and Pregnancy Induced Hypertension (PIH) (p=0.04).Small for Gestational Age (SGA): 35%, peaking at 35 0/6 to 6/7 WOG; a/w nulliparity and severe MS. Sepsis 12.2%, highest at 34-35 0/6 to 6/7 WOG (p=0.001); a/w lower-middle socioeconomic status (p=0.05) and multiparity (p=0.02). Respiratory Distress Syndrome (RDS) 5.3%, peaked at 34 0/6 to 6/7 WOG (p=0.044); a/w poor socioeconomic status (p= 0.00). Transient tachypnoea of Newborn (TTN) 49.4%, a/w nulliparity (p=0.02). Neonatal hyperbilirubinemia (NNH) 57.8%, peaking at 34-35 0/6 to 6/7 WOG (p=0.01); a/w nulliparity (p=0.03). Perinatal asphyxia (PA) 6.5%, highest at 35 WOG. Conclusion: NNH and TTN were common in LPN. 35 WOG related to various risk factors and morbidities. LPN born to mothers with moderate MS, PIH, nulliparity, and age 20-30 were LBW. Mother’s screen time &gt; 4 hours/day a/w LPNs born at 35 WOG.

Safety of different cord clamping strategies in the early postnatal period

BackgroundThis study aimed to evaluate the effect of ICC (cord clamping within the first 15 s), DCC (delayed cord clamping at 60 s), and cut-UCM (cut-umbilical cord milking, cord clamping within the first 15 s) groups on oxygen saturation (SpO2), heart rate (HR), and perfusion index (PI) up to 10 min after birth in newborn infants. MethodsWe conducted this randomized clinical trial in the delivery unit of a University Hospital with 189 infants born between 35 and 42 weeks of gestation. Participants were randomly assigned to one of three groups: ICC, DCC, and cut-UCM. The primary outcomes measured were SpO2, HR, and PI at the 1st, 3rd, 5th, and 10th minutes after birth. We utilized ANOVA and Bayesian calculations in this study. ResultsThere was no difference between the ICC, DCC, and cut-UCM groups in SpO2, HR, and PI values at the 1st, 3rd, 5th, and 10th minutes of life, which did not significantly alter between the three groups in one-way ANOVA. Bayesian repeated-measure ANOVA calculations showed that SpO2 and heart rate results at the 1st, 3rd, 5th, and 10th minutes did not differ between ICC, DCC, and cut-UCM techniques with strong evidence. At the 3rd minute, PI was slightly higher in the DCC and cut-UCM groups compared to the ICC group, with anecdotal evidence. We found no difference between DCC and cut-UCM regarding the 3rd-minute PI, with moderate evidence. ConclusionUmbilical clamping procedures (ICC, DCC, and cut-UCM) did not affect SpO2 and HR in the first ten minutes of life, but 3rd-minute PI values were slightly higher in DCC and cut-UCM compared with ICC among late preterm and term neonates.

Continuous non-invasive measurement of cardiac output in neonatal intensive care using regional impedance cardiography: a prospective observational study

ObjectivesTo compare agreement between echocardiography and regional impedance cardiography (RIC)-derived cardiac output (CO), and to construct indicative normative ranges of CO for gestational age groups.Design, setting and participantsProspective cohort observational...

MATERNAL- AND FETAL-RISK FACTORS ASSOCIATED WITH LATEPRETERM AND EARLY TERM NEONATECOMPARED TO FULL TERM NEONATE BIRTH IN GARISSA COUNTY

Despite late preterm neonates (LPN) and early term neonates (ETN) constitutingmajority of preterm births globally, the risk factors associated with these preterm births, in Garissa County are largely unexplored. This study aimed to identify maternal and fetal risk factors associated with LPN and ETN births relative to their full-term counterpartsin Garissa County. The study was conducted at Garissa County Referral Hospital. A prospective cohort studythat employed convenience sampling to enroll mother-neonate pairs. Data were collected using pretested and validated questionnaires and analyzed using STATA version 17. Multinomial logistic regression analysis was performed to determine Relative Risk Ratio. The P-value was generated at α=0.05 and P&lt;0.05 was considered statistically significant. related risk factors associated with birth of LPN, ETN and FTN were maternal age (P=0.042), occupation (P=0.024), ethnicity (P=0.021), religion (P=0.016) and absence of previous abortion/still birth/premature deliveries (P=0.015). Birth weight was associated with LPN (P&lt;0.001), while FTN had higher likelihood of delayed initiation of breastfeeding (P=0.038) but were less likely to have feeding difficulties compared to LPN and ETN (P=0.012). A comparison of fit model with the complete set of predictors with an intercept-only, or null modelrevealed that P-values for maternal (P=0.0175) and fetal (P&lt;0.001) related risk factors were less than Fisher’s value of 0.05, hence the null hypothesis was rejected. - and fetal-related risk factors associated with LPNs and ETNsare distinct from those of FTNs.

Kangaroo Mother Care in Term and Late Preterm Neonates: A Systematic Review.

This systematic review aims to investigate the efficacy of kangaroo mother care (KMC) in term and late-preterm babies. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, seven studies were analyzed, which covered a wide range of outcomes, from the post-vaccination serum bilirubin level and pain during the vaccination to the prevention of hypothermia and long-term neurodevelopmental outcomes. Results point out that KMC might come with some advantages such as the reduction of neonatal bilirubin levels, a painless and quicker vaccination process, and better prevention of hypothermia. Moreover, initial and lengthy KMC also plays a possible role in the better long-term brain development of low-birth-weight neonates. Furthermore, the limitation of smaller numbers of studies and variability in results remains to be solved. The next step is working to build stronger evidence and creating proper conditions for the implementation of KMC in future healthcare.

Does the 3C (Counselling, Checking and Certification) Initiative Prevent Hypoglycemia Among At-Risk Stable Late Preterm and Term Neonates? - A Randomized Controlled Trial.

To evaluate whether the 3C (Counselling, Checking, Certification) initiative helps in preventing hypoglycemia among at-risk neonates compared to standard care. This randomised controlled trial included 222 mother-newborn dyads with risk factors for neonatal hypoglycemia-Small for gestational age (SGA) babies, infants of diabetic mothers (IDM), large for gestational age (LGA) babies and late preterm infants (LPI). They were randomized to two groups. Group A received standard care while mothers in group B were administered 3C intervention. Early initiation of breastfeeding, incidence of neonatal hypoglycemia within 24h, and exclusive breastfeeding rate at 6 mo were evaluated. Early initiation of breastfeeding was higher in the 3C group compared to standard care group (94.6% vs. 55.9% p <0.001). The incidence of hypoglycemia within 24h was lower in the intervention group compared to standard care (3.6% vs. 15.3%, p <0.05). However, there was no significant difference in exclusive breastfeeding rates at 6 mo between the two groups (61% and 66% in group A and B respectively). The 3C intervention decreases the incidence of hypoglycemia among at-risk neonates. Early initiation of breast-feeding is higher among mothers who receive the 3C intervention.

The frequency-following response in late preterm neonates: a pilot study.

Infants born very early preterm are at high risk of language delays. However, less is known about the consequences of late prematurity. Hence, the aim of the present study is to characterize the neural encoding of speech sounds in late preterm neonates in comparison with those born at term. The speech-evoked frequency-following response (FFR) was recorded to a consonant-vowel stimulus /da/ in 36 neonates in three different groups: 12 preterm neonates [mean gestational age (GA) 36.05 weeks], 12 "early term neonates" (mean GA 38.3 weeks), and "late term neonates" (mean GA 41.01 weeks). From the FFR recordings, a delayed neural response and a weaker stimulus F0 encoding in premature neonates compared to neonates born at term was observed. No differences in the response time onset nor in stimulus F0 encoding were observed between the two groups of neonates born at term. No differences between the three groups were observed in the neural encoding of the stimulus temporal fine structure. These results highlight alterations in the neural encoding of speech sounds related to prematurity, which were present for the stimulus F0 but not for its temporal fine structure.

A late-preterm neonate with germinal matrix hemorrhages and rapidly resolving abnormal vertical eye movements

A late-preterm neonate with germinal matrix hemorrhages and rapidly resolving abnormal vertical eye movements

EARLY NEONATAL MORBIDITIES AMONG TERM AND LATE PRETERM INFANTS IN A TERTIARY CARE CENTRE - A COMPARATIVE STUDY

Background: Late preterm infants are the largest subgroup of preterm infants but they are also a group that is seldom studied. The overall NICU admission rates of these group has been increasing worldwide. Only few studies have been conducted to assess the neonatal morbidity and mortality in late preterm infants [1-4]. Understanding morbidity risk among late preterm infants important for helping newborn care providers to anticipate and to manage morbidity during the birth and also possibly assist in guiding nonemergency obstetric intervention decisions. The present study is an attempt to obtain actual data on incidence, pattern of early neonatal morbidities, and to compare it with term infants. Aims and Objectives: To compare early neonatal morbidity (within first 7 days of life) in late preterm infants with term infants. Methodology: A hospital based prospective observational study conducted among 110 newborns in postnatal ward &amp; Neonatal Intensive Care Unit (NICU) of Government medical college, Kannur during 1year period (March 2022 - March 2023). Study population: All term &amp; late preterm newborns of Government medical college, Kannur. We assessed morbidities like RDS, hypoglycemia, NEC, Jaundice, sepsis and HIE and compared the incidence between term and late preterm neonates during the study period. Results were analyzed using a statistical software package SPSS, version 20.0. Results: Among 110 study population ,43% were late term infants while 56% were term infants. Morbidities like RDS (22.9%), sepsis (8%), hypoglycemia (3%), neonatal jaundice (33%), NEC (16%), HIE (2%) were found to be significantly higher in late preterm infants when compared to term infants. Conclusion: Late preterm infants are at higher risk for a number of neonatal complications like respiratory distress syndrome, neonatal jaundice, sepsis, feeding problems, hypoglycemia and HIE. All these in turn leading to higher rates of NICU admission and late discharge from hospital during first seven days of life.

The prevalence, consequences, and outcome of perinatal asphyxia in term and late preterm live-born neonatesA A case-control study from Iran

Background: Despite several investigations reporting the prevalence of asphyxia in developed and developing countries, very few studies from Iran have demonstrated the rate of neonatal asphyxia and its affecting factors. Objectives: This study aimed to determine the prevalence of asphyxia, its consequences, and neonatal outcomes among Iranian term and late preterm live-born neonates. Methods: A case-control study was conducted in three hospitals; Vali-e-Asr, Yas, and Ziaean from April 2019 to March 2020. The case group included neonates with a history of perinatal asphyxia. Twice gestational age-matched subjects without such a history also entered the study as the control group. All maternal and neonatal data were collected from participants’ medical records. Determining the prevalence of neonatal asphyxia was the primary outcome of the present study. Results: Totally 48 subjects as the case and control groups were included and 16 asphyxiated cases were observed equal to 3.3 per 1000 live-born neonates. Concerning the type of delivery, cesarean section in the control group and vaginal delivery in the case group were the most frequent types of delivery (p=0.041). Comparing neonatal variables, the results showed a significant difference regarding the groups’ genders (p=0.036). Apgar scores in the case group were also significantly lower than the control group (p=0.0001). More cases also required PPV compared to the controls (12 vs. 0; p=0.0001). Hypoxic-ischemic encephalopathy (HIE) grade 1 was also significantly more frequent in the case group than the controls (p=0.0001). The means of pH and base excess in the case group were significantly lower than the control group (p=0.0001). Conclusion: The results showed the prevalence rate of asphyxia among term and late preterm participants was 3.3 cases per 1000 live-born neonates. Apgar scores&lt;5 accompanied with metabolic acidosis, HIE, and requirement of PPV could be predictive variables for perinatal asphyxia. Observing such clinical risk factors may indicate the need of early diagnosis and timely interventions to improve neonatal outcomes.

Feeding Practices of Stable Term and Late Preterm Neonates Born at a Tertiary Hospital in the Philippines during the COVID-19 Pandemic.

We aimed to evaluate the impact of maternal COVID-19 infection and separation of the mother-baby dyad on feeding practices by determining modes of feeding upon discharge and following up at 2-3 days, 14 days, and 1 month post-discharge. This was a prospective observational cohort study conducted at the Philippine General Hospital, a tertiary government COVID-19 referral center in Manila. Mothers who delivered between the months of July and August 2021, and whose COVID-19 status was known were followed up on their baby's mode of feeding at 2-3 days, 14 days, and 1 month post-discharge via phone call. For babies of COVID-19 positive mothers, presence of any symptoms (up to the 14-day time point only) as well as adherence to infection prevention and control practices were also identified. For all time points post-discharge, breastfeeding rates were higher in babies born to COVID-19-negative mothers and in those who were roomed in. However, the differences were not statistically significant. Of the 108 infants, 72.90% remained exclusively breastfed by 1 month of age, with 4.67% formula-fed and 22.43% on mixed feeding. Perception of insufficient milk supply was the most common reason for shifting to formula or mixed feeding. We found a significantly higher direct breastfeeding rate upon discharge in the roomed-in population compared to those admitted to the NICU. Risk factors affecting breastfeeding at 1 month of age was the presence of COVID-19 infection in the mother and mother-baby separation due to NICU admissionCOVID-19-positive mothers were 66.02% less likely (p=0.016, 95% CI 0.1411 to 0.8183) to still be breastfeeding at 1 month, and separation was not found to be a significant risk factor. Feeding practices can be affected not only by COVID-19 infection in the mother and its attendant difficulties such as prolonged hospital stay and physical and social isolation, but also by limitations in the hospital environment that can have an impact on breastfeeding education, support, and opportunities for mother-child bonding.

Comparison of Three Methods of Umbilical Cord Management in Late Preterm and Term Newborns on Hemoglobin and Ferritin Levels at Six Weeks of Age: A Randomized Controlled Trial.

Umbilical cord milking (UCM) and delayed cord clamping (DCC) are strategies that improve the hemodynamic condition of the newborn and also increase the storage of iron. This study aimed to compare the effects of DCC with or without milking in late preterm and term neonates at different time intervals after birth (60, 120, and 180 seconds) on hematological and hemodynamic parameters in neonates at six weeks of age. In this double-arm, parallel-group, triple-blind, and active-controlled trial, all 150 eligible neonates were randomized with allocation concealment into three groups: Group A (DCC with UCM at 60 seconds), Group B (DCC with UCM at 120 seconds), and Group C (only DCC for 180 seconds). Hemodynamic parameters were recorded and compared during the first 48 hours, and hematological parameters were compared at six weeks of age. At six weeks, a significant difference in hemoglobin levels was noted between Groups A, B, and C (p<0.001). The difference in serum ferritin values at six weeks was also statistically significant in comparisons across all three groups (p=0.003). Regarding secondary outcomes examined, hemodynamic parameters and the incidence of neonatal hyperbilirubinemia were found to be comparable at 48 hours after birth. DCC followed by UCM at 120 seconds and DCC till 180 seconds proves superior to DCC with UCM at 60 seconds in preserving elevated hemoglobin levels and iron stores in neonates at six weeks of age. DCC for 180 seconds yielded comparable results, followed by UCM at 120 seconds. All three methods are considered safe and effective without compromising the neonate's hemodynamics.

The use of late preterm antenatal corticosteroids in women with gestational diabetes : a puzzle worth solving

BackgroundTo investigate the association between late preterm antenatal corticosteroid treatment and outcome in late preterm neonates born to mothers with gestational diabetes mellitus,MethodsAll 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.ResultsThis 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.ConclusionsAntenatal 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.

Assessment of Initial Morbidity Patterns in Late Preterm Infants Relative to Those at Term

The purpose of this research was to assess the patterns of morbidity and mortality in late preterm neonates—that is, neonates born before 37 weeks of gestation. Preterm births are a major contributing factor to many deaths in children under five, with a larger percentage of deaths occurring during the neonatal era. The study was a prospective observational cohort study carried out at DDU Hospital in New Delhi in the neonatal intensive care unit of the pediatrics department. While term neonates had a mean gestation distribution of 38.64 weeks, late preterm newborns had a mean distribution of 35.39 weeks. The distribution of mean birth weight was 2.35 (±0.48) and 3.04 (±0.43) kg. Males were seen often in both research groups. The distribution of hypoglycemia among the study groups showed a significant difference, with late preterm infants having a higher incidence of the condition. The rate of post-resuscitation care varied significantly as well, with late preterm infants needing greater attention. A statistically significant increase was observed in the incidence of respiratory distress in late preterm newborns. Compared to the other group, late preterm infants had a higher prevalence of jaundice and sepsis. The study finds that compared to term newborns, late preterm infants had a higher risk of morbidity. To have a better understanding of these children's neonatal outcomes, more research is required.

Reference gender-specific neonatal size at birth growth curves for singleton and twin neonates from North India.

To construct reference growth curves for the preterm population from North India and compare it with global charts. This prospective study enrolled preterm neonates (23 to 36 weeks) from July 2018 to August 2019 after excluding stillbirths and those with congenital malformations. Anthropometry was performed within 18 hours of birth. Gestation age was assessed by the best estimate of a combination of the last menstrual period, antenatal first-trimester ultrasound, and Expanded New Ballard Score (ENBS). Centile curves were constructed for both genders for twins and singleton neonates separately using the GAMLSS method using R software. During the study period, of the 14,908 births, 3253 (21.8%) were born preterm. After excluding malformations and stillbirths, 2976 preterm neonates were eligible, out of which anthropometry within 18 hours was done for 2719 neonates. Data was analyzed for 2290 singleton and 414 twin preterm neonates. Smoothed reference growth curves were constructed for all anthropometric parameters for both genders for singleton as well as twin neonates. Indian preterm infants were smaller compared to international standards. The proportion of small for gestational age (SGA) neonates was 23.1% (Fenton's charts) but only 10.9% when the data from the newly constructed chart was used. The concordance with international standards was better for very preterm neonates <32 weeks than moderate and late preterm neonates (32 to 36 weeks). The reference charts derived from the present study can be used for the North Indian preterm population. The use of western growth charts tends to overestimate the incidence of SGA.

Respiratory distress syndrome is associated with increased morbidity and mortality in late preterm births

Respiratory distress syndrome is strongly associated with prematurity, including late preterm births. Respiratory distress syndrome has been shown to be associated with certain neonatal morbidities and mortality, but these associations are not well described among late preterm births. We sought to determine the association between respiratory distress syndrome and adverse neonatal outcomes among late preterm (34-36 weeks) born singleton neonates. This is a retrospective cohort study using California's linked vital statistics and patient discharge data (2008-2019). We included singleton, nonanomalous births with a gestational age of 34-36 weeks. Outcomes of interest were interventricular hemorrhage, necrotizing enterocolitis, retinopathy of prematurity, neonatal sepsis, length of hospital stay, neonatal death, and infant death. Chi-square and multivariable Poisson regression analyses were used to examine the association of respiratory distress syndrome with outcomes at each gestational age. Adjusted risk ratio and 95% confidence interval values were estimated. A total of 242,827 births were included, of which 11,312 (4.7%) had respiratory distress syndrome. We found that among neonates with respiratory distress syndrome, necrotizing enterocolitis was higher at 35 weeks (adjusted risk ratio, 3.97 [95% confidence interval, 1.88-8.41]) and 36 weeks (adjusted risk ratio, 4.53 [95% confidence interval, 1.45-14.13]). Intraventricular hemorrhage, retinopathy of prematurity, neonatal sepsis, and length of hospital stay were significantly higher at 34-36 weeks of gestation in neonates with respiratory distress syndrome. Neonatal death was significantly higher among neonates with respiratory distress syndrome at 35 weeks (adjusted risk ratio, 3.04 [95% confidence interval, 1.58-5.85]) and 36 weeks (adjusted risk ratio, 3.25; 95% confidence interval, 1.59-6.68). In addition, infant death was significantly higher at 35 weeks (adjusted risk ratio, 2.27 [95% confidence interval, 1.43-3.61]) and 36 weeks (adjusted risk ratio, 2.60 [95% confidence interval, 1.58-4.28]). We found that respiratory distress syndrome was associated with intraventricular hemorrhage, retinopathy of prematurity, and sepsis at 34-36 weeks of gestation, whereas respiratory distress syndrome was associated with neonatal death, infant death, and necrotizing enterocolitis at 35 and 36 weeks. Clinicians should keep these outcomes in mind when making decisions about delivery timing, the potential benefits of antenatal steroids in pregnancies in the late preterm period, and the management of respiratory distress syndrome in late preterm neonates.