Macrosomia Research Articles

Evaluation of gestational weight gain in women with twin pregnancies and its relationship to neonatal birth weight. A pilot study

BackgroundTo date, there have been no studies in Poland on weight gain in women with twin pregnancies in relation to recommendations.ObjectiveThe aim of this study was to analyze the gestational weight gain of women with twin pregnancies depending on their body weight before pregnancy, and to assess the relationship between the observed weight gain and the neonatal birth weight.Material and MethodsThe study was conducted among 50 women in twin pregnancies and their 100 newborns delivered after 36 weeks of gestation. Gestational weight gain was assessed based on the American Institute of Medicine guidelines for women in twin pregnancies. Data on the pre-pregnancy body weight and gestational weight gain were collected by interviewing the patients. Neonatal data were obtained from the hospital medical records.ResultsNormal gestational weight gain was observed only in 38% of the women. In women with monochorionic pregnancy, too low body weight gain occurred almost 3 times more often than in women with dichorionic pregnancy (74% vs. 26%), (p<0.001). Women with monochorionic pregnancies also gave birth to statistically significantly more newborns with low birth weight (<2500 g), compared to women with dichorionic pregnancies (62.5% vs. 37.5%) (p=0.007). The mean birth weight of newborns born to mothers with excessive weight gain was 151 g higher than children born to mothers with normal weight gain (2727 g vs. 2576 g) (p=0.035).ConclusionsIn the majority of studied women in twin pregnancies, gestational weight gain was not compliant with the current recommendations. The risk of insufficient weight gain is higher in women with monochorionic pregnancies compared to women with dichorionic pregnancies.

Determinants of macrosomia among newborns delivered in Jigjiga City, Eastern Ethiopia: a case-control study

BackgroundMacrosomia is a forgotten health problem that directly or indirectly affects maternal and neonatal health outcomes. There is a lack of evidence on the factors that affect macrosomia in eastern Ethiopia. This study aimed to assess the determinants of macrosomia among newborns delivered in Jigjiga City, Eastern Ethiopia.MethodsAn institutional-based case-control study was conducted among 82 cases and 164 controls in Jigjiga City from June 25 to August 24, 2023. Bivariable and multivariable logistic regression were used to identify the determinants of macrosomia. An adjusted odds ratio (AOR) with a 95% confidence interval was used to report the strength of the association, and the statistical significance was declared at a p-value < 0.05.ResultsThis study found that lack of preconception care (AOR = 2.48, 95% CI: 1.29, 4.76); post-term pregnancy (AOR = 2.90, 95% CI: 1.16, 7.28); inadequate physical activity (AOR = 3.52, 95% CI: 1.55, 7.98), having previous macrosomia (AOR = 4.52, 95% CI: 2.18, 9.36), and gestational diabetic mellitus (AOR = 2.58, 95% CI: 1.10, 6.28) were the main risk factors of macrosomia.ConclusionThis study indicated that failed utilization of preconception care, inadequate physical activity during pregnancy, post-term pregnancy, gestational diabetic mellitus, and having previous macrosomia were the risk factors for fetal macrosomia. Encouraging women to utilize reproductive health services and providing special care for high-risk mothers are essential to reducing and preventing the level of fetal macrosomia and its consequences.

Association of maternal 25(OH)D levels during pregnancy with fetal birth weight and preschooler growth status: A retrospective birth cohort study.

There is limited and conflicting evidence available regarding the correlation between maternal vitamin D status and childhood overweight and body mass index (BMI). The aim of this study was to investigate the following: (1) potential association between maternal 25-hydroxyvitamin D (25(OH)D) levels and newborn growth status; (2) relationship between maternal 25OHD levels and BMI and the risk of overweight with preschoolers being overweight. A cohort of 3213 eligible singleton mother-infant pairs were used to investigate the possible associations between maternal 25(OH)D levels and fetal growth status. Data of 1767 available singleton mother-infant pairs and 6-year-old preschoolers was applied to analyze the potential correlations between maternal 25(OH)D status and risk of childhood overweight. Compared with sufficient 25(OH)D in pregnancy group (≥75 nmol/L), there were no correlations between the maternal 25(OH)D deficiency (<50 nmol/L) and large gestational age (LGA) (p = 0.465), small gestational age (SGA) (p = 0.607), lower birth weight (LBW) (p = 0.725) or fetal macrosomia (p = 0.535). Moreover, no significant associations between insufficient maternal 25(OH)D (50-75 nmol/L) and LGA (p = 0.505), SGA (p = 0.816), LBW (p = 0.816), or fetal macrosomia (p = 0.413) were observed. We found statistically significant disparities between the fetal birth weight and height (p < 0.001), weight (p < 0.001), head circumference (p = 0.001) of 6-years preschooler. No significant associations were found between the maternal 25(OH)D levels and BMI and risk of overweight at 6-year-old preschoolers. There were no apparent correlation found between maternal 25(OH)D concentrations and fetal birth status. There was no evidence found to suggest the effect of maternal 25(OH)D level on overweight at 6-year-old preschoolers.

Untargeted Lipidomic Profiling of Amniotic Fluid Reveals Dysregulated Lipid Metabolism in Healthy Normal-Weight Mothers with Fetal Macrosomia

Background: Alterations in maternal lipid metabolism have been elucidated by several studies in relation to macrosomia. However, the lipidome of the intrauterine compartment associated with macrosomia, particularly in early pregnancy, remains largely unknown. Objectives: (1) To compare the lipidomic profile of early 2nd trimester amniotic fluid (AF) of healthy mothers with normal body mass index who gave birth to large-for-gestational age (LGA) versus appropriate-for-gestational age (AGA) infants; and (2) to examine if insulin and glucose concentrations in AF were associated with the AF lipidomic profile. Methods: In this nested case–control study, bio-banked AF samples were collected from pregnant women undergoing routine amniocentesis at 12–22 weeks of gestation. A subsample of 15 LGA infants (cases) were contrasted with 15 AGA infants (controls). An untargeted lipidomics analysis using liquid chromatography quadrupole time-of-flight mass spectrometry was conducted. Univariate and multivariate statistical analyses (principal component analysis and partial least-squares discriminant analysis) were used to extract differentially abundant (DA) features with high variable importance in projection (VIP) scores. Results: LGA AF was characterized by elevations of 30 phosphatidic acid species. Among other DA features, sphingomyelin (SM 14:0;O2/20:1) had the highest VIP score and was markedly elevated in LGA AF. Neither insulin nor glucose was associated with 2nd trimester AF lipidomic profiles in these healthy, normal-weight mothers. Conclusion: These findings provide evidence of early dysregulated lipid metabolism in healthy, normal-weight mothers with LGA infants.

Determinants of retroplacental hematoma at the Maradi mother and child health center, Niger: a case‒control study.

Retroplacental hematoma is a paroxysmal accident that threatens maternal and fetal prognosis. It is a major emergency in obstetric pathology. The objective of this study was to identify the factors associated with retroplacental hematomas at the Maradi Mother and Child Health Center in 2022. This was a case‒control cross-sectional analytical study that used patient records for the year 2022 from September 20 to October 20, 2023. The presence of a retropl placental hematoma was the outcome variable and was measured by a case (yes) or control (no) response. The exposure variables included sociodemographic characteristics, obstetric characteristics, care, progression of patients and neonatal characteristics. Pearson's chi-square tests at the 5% significance level were used to analyze differences between categorical variables. All variables that had a bilateral p value < 0.05 in the bivariate analysis were introduced into the binary logistic regression model to identify factors associated with retroplacental hematoma. A total of 246 cases of retroplacental hematoma were recorded out of 4731 deliveries recorded during the study period, for an estimated frequency of 5.20%. The mean age of the patients was 29.41 ± 6.94 years. Factors associated with retroplacental hematoma included multiple parity [adjusted odds ratio (ORA): 0.38, 95% confidence interval (CI) (0.24-0.61)], fewer than 4 antenatal visits [AOR: 10.70, 95% CI (1.14-99.74)], blood transfusion [AOR: 2.01, 95% CI (1.11-3.60)], a newborn birth weight less than 2500g [AOR: 1.92, 95% CI (1.53-2.42)] and fetal mortality in utero [AOR: 13.20, 95% CI (1.86-93.70)]. This study identified the factors associated with retroplacental hematoma. Prevention requires regular, high-quality prenatal care. Early diagnosis and cesarean section improve maternal-fetal prognosis. Not applicable.

Quantification of persistent organic pollutants in breastmilk and estimated infant intake, Norway.

Persistent organic pollutants (POPs) are environmental contaminants that can accumulate in human tissues and pose potential health risks. Despite global efforts to reduce their prevalence, follow-up studies are needed to see if the measures are successful. Since most infants in Norway are breastfed for the first 6 months of life, monitoring POP contamination in breastmilk is important for children's health and development. This study aims to evaluate the current levels of various POPs in women's breastmilk in Innlandet County, Norway. A cross-sectional study was conducted measuring concentrations of 35 different POPs, including polychlorinated biphenyls (PCBs), chlordanes (ChlDs), hexachlorocyclohexanes (HCHs), dichlorodiphenyltrichloroethanes (DDTs), Mirex, and brominated flame retardants in 120 breastmilk samples. The study analysed the impact of maternal age, parity, pre-pregnancy BMI, and infant age on POPs levels and compared the estimated daily intake per body weight of infants to existing health guidelines. The detected percentages for PCBs were 100%, for DDTs 98.3%, and for ChlDs 98.3%. The highest median concentration was found for ΣPCBs (26.9 ng/g lw). Maternal age, parity, and infant age were significant determinants of POP concentrations. Most infants exceeded the health-based guidance values for ΣPCB, and 6.4% percent did so for ΣHCHs. Despite lower POPs concentrations in breastmilk than in earlier studies, many breastfed infants are still exposed to levels exceeding health-based guidance values. Although the study's design had limitations, the study provides updated population-based data on POPs in breastmilk. Continued monitoring and research are necessary to understand and mitigate potential health risks associated with POPs.

The proportion of weight gain due to change in fat mass in infants with vs without rapid growth.

There is extensive evidence that rapid infant weight gain increases the risk of childhood obesity, but this is normally based on childhood body mass index (BMI) only and whether or not this is because infants with rapid weight gain accrue greater fat mass is unknown. The primary objective of our study was to test whether the proportion of infant weight gain due to concurrent increases in fat mass is greater in infants with rapid weight gain as compared to those with normal growth. Body composition was assessed by (1) air-displacement plethysmography (ADP) at 0 and 6 months in 342 infants from Australia, India, and South Africa and (2) deuterium dilution (DD) at 3 and 24 months in 555 infants from Brazil, Pakistan, South Africa, and Sri Lanka. Weight gain and length growth were each categorized as slow, normal, or rapid using cut-offs of <-0.67 or >+0.67 Z-scores. Regression was used to estimate and contrast the percentages of weight change due to fat mass change. Approximately 40% of the average weight gain between 0 and 6 months and 20% of the average weight gain between 3 and 24 months was due to increase in fat mass. In both samples, compared to the normal group, the proportion of weight gain due to fat mass was higher on average among infants with rapid weight gain and lower among infants with slow weight gain, with considerable individual variability. Conversely, slow and rapid length growth was not associated with differential gains in fat mass. Pediatricians should monitor infant growth with the understanding that, while crossing upward through the weight centiles generally is accompanied by greater adiposity gains (not just higher BMI), upward crossing through the length centiles is not.

Proteinuria is associated with worse outcomes in babies born to mothers with preeclampsia: A retrospective cohort study at a tertiary referral hospital in Brazil.

To evaluate whether the presence of proteinuria, although no longer mandatory in the revised diagnostic criteria, results in worse maternal and fetal outcomes in preeclampsia (PE). A retrospective cohort study was conducted, analyzing data from pregnant patients diagnosed with PE between January 2015 and December 2019 at a tertiary care center in Brazil. Ethical approval was obtained, and the patient records were reviewed to assess maternal and perinatal outcomes based on the revised diagnostic criteria by the College of Obstetricians and Gynecologists, focusing on the presence or absence of proteinuria. The study included 816 pregnant patients with PE, of whom 685 (83.9%) were diagnosed based on proteinuria. The revised criteria, which include indicators of organ damage, identified an additional 131 cases (16.4%). Analysis showed no significant differences in maternal outcomes between proteinuria and non-proteinuria groups, including intensive care unit (ICU) admission, acute pulmonary edema (APE), HELLP syndrome, eclampsia, or C-section rates. However, babies born to mothers with proteinuria PE experienced worse outcomes, including fetal growth restriction, low birth weight, ICU admission, and higher rates of preterm birth. Relative risk analysis demonstrated a high risk of babies being born with low birth weight, ICU admission, and being born preterm and very preterm in cases where proteinuria was present in mothers with PE. The presence of proteinuria is associated with significantly worse outcomes in babies born to mothers with preeclampsia, while no significant differences were observed in maternal outcomes.

Analysis of the relationship between neonatal birth weight and meconium metabolites based on birth cohort metabolomics

Neonatal birth weight is a crucial indicator of intrauterine growth and development with important implications for child development and adult health. The birth weight of a newborn is closely linked to the nutrition and health of the mother during pregnancy as well as genetic factors. Therefore, assessing the metabolic status of the fetus in utero is greatly significant for understanding the mechanisms responsible for abnormal birth weight. While previous studies often analyzed the impact of maternal metabolism on fetal development using umbilical cord blood from pregnant women, such blood may not accurately reflect the actual intrauterine environment owing to the barrier function of the placenta; moreover, obtaining biological samples during the fetal period is challenging. Meconium, the first feces excreted by a newborn, provides ideal biological material for studying maternal and infant health. Metabolomics can reveal metabolic changes in living organisms by analyzing small molecules in biological samples; hence studying meconium samples using metabolomics technology is expected to reveal fetal metabolic changes during pregnancy, thereby providing new insights into fetal nutritional intake, growth, and development, as well as metabolic pathways related to birth weight. To gain a deeper understanding of the metabolic changes associated with birth weight, this study collected metabolomic data from the meconium of 484 newborns in the established Xiaogan birth cohort using an untargeted metabolomics technique based on liquid chromatography-high resolution mass spectrometry (LC-HRMS) and analyzed the association between meconium metabolites and birth weight. This cohort exhibited incidence rates of low birth weight (<2500 g) and macrosomia (>4000 g) of 3.3% and 7.2%, respectively, which were roughly equivalent to the national average. Orthogonal partial least squares discriminant analysis revealed significant differences between the meconium metabolomes of the low birth weight and macrosomic groups when compared to the normal weight group. We discovered significant distinctions between the differential metabolites of newborns of low birth weight and those of normal weight, as well as between macrosomic and normal weight newborns that point to disparate biological pathways. Newborns with low birth weight exhibited significantly lower levels of critical amino acids, such as glutamate and proline, compared to the normal weight group, which may be associated with placental dysfunction and maternal nutritional deficiencies. Conversely, the meconium of macrosomic newborns contained significantly elevated levels of hormone metabolites such as estrone that reflected the pathophysiological state associated with maternal metabolic diseases or excessive placental hormone levels. Our study suggests that the metabolomic profile of the meconium reflects the metabolic pathways and regulatory mechanisms at play during fetal growth and development, and offers potential metabolic biomarkers and directions for future in-depth research into diseases related to fetal development. However, this study was based solely on the Xiaogan birth cohort, which was limited to specific regions and populations. A multicenter, multiethnic, and multiregional study is expected to help validate the universality of our research findings.

Risk factors for and short-term prognosis of intrauterine infection in preterm infants.

To identify the risk factors for and short-term prognosis of intrauterine infection (IUI) in preterm infants. We retrospectively collected clinical data regarding preterm infants (28+0-36+6 weeks of gestational age) with IUI from the neonatal intensive care unit of our hospital between June 2017 and June 2022. The pathologic characteristics of the infants were classified using the Redline criteria, and the resulting groups were compared with respect to their clinical characteristics, indicators of infection, complications, and mortality rates. Three hundred thirty (78.1%) of the 422 enrolled neonates showed signs of histologic IUI; 51.8% showed histologic chorioamnionitis alone, and 48.2% showed both histologic chorioamnionitis and funisitis. The independent risk factors identified for IUI were maternal prenatal invasive manipulation, premature rupture of membranes (>18 hours before labor), and prenatal C-reactive protein concentration. The infants with IUI showed higher incidences of respiratory distress syndrome, bronchopulmonary dysplasia, retinopathy of prematurity, and prolonged mechanical ventilation. Low gestational age and low birth weight of preterm infants were significantly associated with a higher incidence of histologic IUI, more severe inflammation, and a higher incidence of complications. Histologic IUI is associated with high complication and mortality rates in preterm infants, as is an increasing severity of inflammation.

Does in utero exposure to chemical hair relaxers have a negative impact on birth weight or other birth outcomes for infants compared with infants without this exposure?

Does in utero exposure to chemical hair relaxers have a negative impact on birth weight or other birth outcomes for infants compared with infants without this exposure?

Effect of Moringa Oleifera Plus Royal Jelly Capsules in The Gestation Age and Placenta Weight of Newborns in Indonesia

Effect of Moringa Oleifera Plus Royal Jelly Capsules in The Gestation Age and Placenta Weight of Newborns in Indonesia

Associations of Maternal Nutritional Status and Supplementation with Fetal, Newborn, and Infant Outcomes in Low-Income and Middle-Income Settings: An Overview of Reviews

Background/Objectives: Despite advances in maternal nutritional knowledge, the effect of maternal diet, micronutrient status and undernutrition, and the effect of maternal supplementation on fetal, neonatal and infant outcomes still have gaps in the literature. This overview of reviews is intended to assess the available information on these issues and identify the main maternal nutritional factors associated with offspring outcomes in low- and middle-income countries as possible targets for public health interventions. Methods: The literature search was performed in Medline (PubMed) and Cochrane Library datasets in June 2024. Pre-specified outcomes in offspring were pooled using standard meta-analytical methods. Results: We found consistent evidence on the impact of maternal undernutrition indicated by low body mass index (BMI), mid-upper arm circumference (MUAC), and stature, but not of individual micronutrient status, on intrauterine-growth retardation, preterm birth, low birth weight, and small for gestational age, with research showing a possible effect of maternal undernutrition in later child nutritional status. Studies on micronutrient supplementation showed possible beneficial effects of iron, vitamin D, and multiple micronutrients on birthweight and/or decreasing small for gestational age, as well as a possible effect of calcium on preterm birth reduction. Interventions showing more consistent beneficial outcomes were balanced protein-energy and lipid base supplements, which demonstrated improved weight in newborns from supplemented mothers and a decreased risk of adverse neonatal outcomes. Conclusions: Further research is needed to identify the benefits and risks of maternal individual micronutrient supplementation on neonatal and further child outcomes.

Effectiveness of NDT method in cases of Cerebral Palsy Ataxia

Background: As many as 2.5% of children out of 1000 live births in the world have a higher risk of developing CP, and as many as 70% of CP occurs if the baby's birth weight is low, infections during pregnancy and the child's growth and development, obstruction of the birth canal, and stress experienced by the mother. causes the baby to experience CP. Objective: The case study aims to determine the benefits of the NDT approach method for CP Ataxia in improving movement control, eliciting reflexes, increasing core stability and lower extremity muscle strength, and increasing functional activity. Method: In the case of CP Ataxia, the NDT method is used in the form of handling with falling reflex training, handling with training standing on a balance board, facilitation with training getting up and down a balance board, facilitation with walking and pushing a chair. Evaluation was carried out 4 times over 3 weeks with GMFM, and checking balance reflexes. Results: After physiotherapy, it was found that there was an increase in movement control, the emergence of reflexes in children where the appearance of the protective side ward reflex increased starting at T3, while the emergence of the paracute side ward reflex began at T4. There was an increase in muscle strength and functional activity measured by GMFM, resulting in T1 63.36%; T2 63.36%; T3 64.36%; T4 67.3%. Conclusion: The NDT approach as a method for managing CP Ataxia with 4x therapy for 3 weeks is effective in improving movement control, eliciting reflexes, increasing core stability and lower extremity muscle strength, and increasing functional activity.

Cellular and Molecular Pathophysiology of Gestational Diabetes

Gestational diabetes (GD) is a metabolic disorder characterized by glucose intolerance during pregnancy, significantly impacting maternal and fetal health. Its global prevalence is approximately 14%, with risk factors including obesity, family history of diabetes, advanced maternal age, and ethnicity, which are linked to cellular and molecular disruptions in glucose regulation and insulin resistance. GD is associated with short- and long-term complications for both the mother and the newborn. For mothers, GD increases the risk of developing type 2 diabetes, cardiovascular diseases, and metabolic syndrome. In the offspring, exposure to GD in utero predisposes them to obesity, glucose intolerance, and metabolic disorders later in life. This review aims to elucidate the complex cellular and molecular mechanisms underlying GD to inform the development of effective therapeutic strategies. A systematic review was conducted using medical subject headings (MeSH) terms related to GD’s cellular and molecular pathophysiology. Inclusion criteria encompassed original studies, systematic reviews, and meta-analyses focusing on GD’s impact on maternal and fetal health, adhering to PRISMA guidelines. Data extraction captured study characteristics, maternal and fetal outcomes, key findings, and conclusions. GD disrupts insulin signaling pathways, leading to impaired glucose uptake and insulin resistance. Mitochondrial dysfunction reduces ATP production and increases reactive oxygen species, exacerbating oxidative stress. Hormonal influences, chronic inflammation, and dysregulation of the mammalian target of rapamycin (mTOR) pathway further impair insulin signaling. Gut microbiota alterations, gene expression, and epigenetic modifications play significant roles in GD. Ferroptosis and placental dysfunction primarily contribute to intrauterine growth restriction. Conversely, fetal macrosomia arises from maternal hyperglycemia and subsequent fetal hyperinsulinemia, resulting in excessive fetal growth. The chronic inflammatory state and oxidative stress associated with GD exacerbate these complications, creating a hostile intrauterine environment. GD’s complex pathophysiology involves multiple disruptions in insulin signaling, mitochondrial function, inflammation, and oxidative stress. Effective management requires early detection, preventive strategies, and international collaboration to standardize care and improve outcomes for mothers and babies.

Premature Rupture of the Membrane– Microbiological Assessment

Introduction: Premature rupture of membranes (PROM) refers to the breaking of the amniotic sac before the onset of labor. When this happens before 37 weeks of gestation, it is termed preterm (PROM). One critical aspect of managing PROM or PPROM is the microbiological assessment, as infection plays a significant role in the outcome for both mother and fetus. Methods: A prospective cross-sectional study was carried out in a private clinic at Dhaka from January 2023 to December 2023. A total of 50 pregnant patients (N=50) with PROM were enrolled in this study following the inclusive criteria. Data were collected in the predesigned data collection sheet. Data were analyzed statistical package for social science (SPSS). Result: Commonest organism 72% were no growth, 10% were streptococcus, 6% were candida, 2% were delivered alpha-hemolytic streptococcus, 2% were E. coli Conclusion: Premature rupture of membrane and chorioamnionitis may cause antagonistic maternal consequences linked to infection. Premature rupture of membrane indicated lower birth weight for infants. Proper antibiotics must be certain prophylactically for the anticipation of intra-partum infection in case of PROM. EWMCJ Vol. 12, No. 1&amp;2, January-July 2024: 75-79

HEALTH EDUCATION ON MATERNAL KNOWLEDGE AND ATTITUDES IN BABY MASSAGE INDEPENDENTLY

Background: Baby massage is a comfortable form of communication between mother and baby. Benefits of regular baby massage with proper techniques include increased baby weight gain, improved breast milk production, reduced maternal anxiety, and stronger bonding. Method: Quantitative research using a cross-sectional approach. Data analysis was conducted using univariate and bivariate techniques with chi-square statistical tests. The sample in this study consisted of 45 mothers with babies aged 0–12 months in Kedak Village, Semen, Kediri Regency. Sampling technique with accidental sampling. Respondents were given a questionnaire before and after participating in a health education session conducted using audiovisual media and leaflets. Result:The bivariate analysis using the chi-square test showed the value of Asymp. A significant relationship was found between pre-health education and the knowledge and attitude of mothers in massaging their baby independently, with a p-value of 0.000. Post-health education, the Asymp. significance level of p-value 0.001 indicates a relationship between mothers' knowledge and their attitude towards independently massaging their babies after health education. Conclusion: There is a relationship between health education and mothers' knowledge and attitude towards independently massaging their babies.

Nomogram Predictive Model for Vaginal Birth after One Prior Cesarean Section: A Retrospective Study

Background: Repeat cesareans pose significant maternal risks, whereas vaginal birth after cesarean (VBAC) offers better outcomes, with a complication rate of 2.4% compared with 3.6% for elective repeat cesareans and 14.1% for failed trial of labor after cesarean (TOLAC). TOLAC rates are low in China, and success rates vary between 60% and 80%. This study aims to develop a nomogram-based predictive model for VBAC in China and improve existing, less rigorous scoring models. Methods: This retrospective cohort study was conducted at Hangzhou Women's Hospital from February 2015 to March 2020, and included 159 parturient attempts at labor after one prior low transverse cesarean section. The participants were divided into two groups based on their mode of delivery for comparison: the VBAC and the TOLAC failure group. Univariate and multivariate logistic regression analyses were conducted to identify independent predictors for VBAC and develop a nomogram predictive model to estimate the success rate of TOLAC. The bootstrap method was used for internal validation of the models. Three different VBAC prediction models were evaluated by plotting receiver operating characteristic (ROC) curves, calibration curves, and decision curves. Results: A total of 127 women had VBAC and 32 women failed TOLAC, with a success rate of 79.9%. Three independent factors affecting the VBAC were identified: gestational age at delivery, Bishop score and newborn birth weight. A predictive nomogram model for the VBAC was constructed that incorporates these three factors. The model showed a good fit (χ2 = 11.94, p = 0.154) with an overall prediction accuracy of 81.1%. The area under the ROC curve was 0.83 (95% CI (confidence interval), 0.76–0.90) (p &lt; 0.001) and the optimal cut-off value was 83.4%. The bootstrap internal validation showed that our predictive model maintained high overall accuracy and specificity, but exhibited low sensitivity and a low Kappa coefficient. Compared to the Grobman model and Jiaming Rao et al. model, our developed prediction model possesses the strongest discriminatory ability and the highest net benefit, followed by the model by Jiaming Rao et al. All three models demonstrate a high degree of fit. Conclusions: Shorter gestational age at delivery, lower newborn birth weight and higher cervical Bishop score are favorable factors for VBAC. The predictive nomogram model for the VBAC after a single cesarean section, constructed with these three factors, has good predictive efficacy. The model is simple to calculate and has practical value in the clinical selection of suitable candidates for TOLAC after a single cesarean section.

Contemporary issues of the birth trauma

Background. Birth trauma is a group of diseases caused by mechanical factors during childbirth. Birth trauma is an interdisciplinary problem, affecting various fields of medicine, such as obstetrics, pediatrics, child neurology and other sciences. Birth trauma occupies an important place in the structure of perinatal morbidity and mortality. Birth injuries of newborns during vaginal birth occur in 3.6% of cases, during cesarean section — in 1.2%. However, at present, despite a comprehensive study of the problem, the incidence of birth trauma in newborns remains high. Along with obstetric birth trauma, spontaneous birth trauma also occurs — not associated with any obstetric care.Purpose of review. To summarize and analyze the available data on the causes of birth trauma in newborns depending on the type of birth injury.Materials and methods. The review includes published data over the past 10 years regarding the study of the causes of the main types of birth injuries in newborns. The literature search was conducted in Web of Science, Google Scholar, PubMed, and ELibrary databases.Results. The problem of fetal-pelvic disproportion in the genesis of the development of risk factors for maternal-fetal trauma remains relevant. Fetal macrosomia is one of the most significant factors in birth trauma. The most common skull injury in newborns is cephalohematoma. According to the mechanism of occurrence, birth trauma is divided into spontaneous — occurring during physiological childbirth — and obstetric — associated with any obstetric benefits. The degree of configuration of the fetal head plays a significant role in the pathogenesis of birth trauma. Birth trauma is considered as a systemic reaction on the part of the newborn’s body, which leads to a breakdown of compensatory and adaptive mechanisms and the development of critical damage to the central nervous system and is differentiated from birth damage, which includes only local changes.Conclusion. To search for preventive measures aimed at preventing birth injuries in newborns, it is necessary to systematize the groups of causes that influence the increased risk of birth injury. Timely assessment of the pathological configuration of the fetal head is extremely important when deciding on the advisability of using obstetric aids during vaginal operative delivery, since it is an early predictor of the formation of fetal-pelvic disproportion — a significant factor in birth trauma in the newborn. In recent years, taking into account the active study of molecular genetic mechanisms in the genesis of the formation of various pathological conditions, the search for various genetic and epigenetic factors that influence the risk of developing birth traumatic injuries in a newborn against the background of individual susceptibility to the effects of any physical factors during childbirth.

Associations of fetal and infant growth patterns with behavior and cognitive outcomes in early adolescence

AbstractBackgroundFetal life and infancy might be critical periods for brain development leading to increased risks of neurocognitive disorders and psychopathology later in life. We examined the associations of fetal and infant weight growth patterns and birth characteristics with behavior and cognitive outcomes at the age of 13 years.MethodsPopulation‐based prospective cohort study from fetal life until adolescence. Pregnant women with a delivery date between April 2002 and January 2006 were eligible. Follow‐up measurements were available for 4716 children. Fetal weight was estimated in the second and third trimesters of pregnancy by ultrasonography. Infant weight was measured at birth and at 6, 12, and 24 months. Fetal and infant weight acceleration or deceleration were defined as a change in SD greater than 0.67 between time points. Total, internalizing and externalizing problems and attention‐deficit hyperactivity disorder (ADHD) symptoms were measured using Child Behavior Checklist (CBCL/6–18), autistic traits by the Social Responsiveness Scale (SRS) and intelligence quotient (IQ) by the Wechsler Intelligence Scale for Children‐Fifth Edition (WISC‐V).ResultsOne week longer gestational age at birth was associated with a −0.03 SDS (95% Confidence Interval (CI): −0.04, −0.01) lower total behavior problems score, a −0.02 SDS (95% CI: −0.04, −0.01) lower ADHD symptoms score. Also an increase in birth weight of 500 g was associated with a lower odds of having high externalizing problems (OR 0.92 (95% CI: 0.86, 0.98) and of having a low IQ score (OR 0.79 (95% CI: 0.71, 0.88). Compared to children with normal fetal and infant growth, those with accelerated fetal and infant growth had a 0.27 SDS higher IQ (95% Confidence Interval 0.11, 0.44).ConclusionsBoth fetal and infant weight development are associated with behavioral and cognitive outcomes in early adolescence. Follow‐up studies are needed to assess whether these associations link to later life mental health outcomes.