Large For Gestational Age Babies Research Articles

Comparison Between Fetal Abdominal Subcutaneous Tissue Thickness and Abdominal Circumference to Predict Large for Gestational Age Neonate in Gestational Diabetes.

Increased subcutaneous fat deposition in abdomen in large for gestational age (LGA) fetuses of mothers with gestational diabetes mellitus can be measured by fetal abdominal subcutaneous tissue thickness (FASTT) using ultrasound. The current study aimed to evaluate the correlation between FASTT and birth weight and compare FASTT and abdominal circumference (AC) for prediction of LGA babies in gestational diabetes. 150 term GDM women were enrolled into the study. FASTT was measured weekly. Birth weight was measured immediately after delivery and categorized into SGA, AGA and LGA according to International growth charts. The last FASTT and AC values were recorded for analysis. Correlation statistics was used to determine the relation between FASTT with birth weight and ROC curves were used to compare FASTT and AC for prediction of LGA fetuses. There was weak positive correlation between FASTT and birth weight with Pearson's co-efficient (r) of 0.375. The cut-off value for FASTT to predict LGA fetuses obtained by ROC curve was ≥8.05 mm with sensitivity and specificity of 68.8% and 68.7%. The mean values of FASTT for small for gestational age (SGA), appropriate for gestational age (AGA) and LGA fetuses were significantly different. AUC for FASTT was 0.692 and for AC was 0.755. FASTT had a positive but weak correlation with birth weight. The utility of FASTT as a screening tool may not be impressive. FASTT can discriminate between SGA, AGA and LGA fetuses. AC is a better predictor than FASTT for LGA neonates.

Associations between gestational weight gain and weight development of the offspring: Differences depending on maternal pre-pregnancy BMI

PurposeObesity rates are rising, and the gestational weight gain (GWG) of most women does not comply with current guidelines. This study assesses the association of pre-pregnancy BMI (ppBMI) and GWG with the child’s weight development and investigates whether associations with GWG differ depending on ppBMI.MethodsData were obtained from the cohort study LIFE Child (Germany), comprising 691 mother–child pairs. Children’s weight was followed until age five. Associations between maternal ppBMI, GWG, and children’s weight were evaluated using regression analyses.ResultsThe association between GWG and birth weight (BW) was significantly positive in normal and underweight (n/u) women (βGWG = 0.05, p < 0.01, 95% confidence interval (CI) 0.03—0.07), but not in women with overweight or obesity (o/o) (βGWG = 0.0002, p = 0.99, 95% CI −0.03 to 0.03). The risk of giving birth to an infant who was large for gestational age (LGA) increased with rising GWG in n/u women (OR = 1.6, p < 0.01, 95% CI 1.23—2.25). Women with o/o were at increased risk for a LGA baby regardless of GWG (OR = 3, p < 0.01, 95% CI 1.34—6.97). This trend persisted in the child’s weight development during the first 5 years of life.ConclusionWomen with o/o might increase their offspring’s risk for higher weight at birth and in early childhood. In n/u women, GWG might be the more influential factor. Women should strive for normal weight before conception and should be more attentive to GWG.

Despite treatment, HbA1c ≥ 37mmol/mol in the first trimester is associated with premature delivery among South Asian women with gestational diabetes mellitus: a retrospective cohort study.

To examine the effects of first-trimester HbA1c (HbA1c-FT) ≥ 37mmol/mol on preterm birth (PTB) and large-for-gestational-age (LGA) babies in a retrospective cohort of South Asian pregnant women with gestational diabetes (GDM). The cohort (n = 686) was separated into two groups based on HbA1c-FT values: Group A (n = 97) and Group B (n = 589), with values of 37-46mmol/mol (5.5-6.4%) and < 37mmol/mol (5.5%), respectively. HbA1c-FT's independent influence on PTB and LGA babies was examined using multivariable logistic regression in groups A and B women. The reference group (Group C) included 2031 non-GDM women with HbA1c-FT < 37mmol/mol (< 5.5%). The effects of HbA1c-FT on PTB and LGA babies in obese women in Groups A, B, and C (designated as A-ob, B-ob, and C-ob, respectively) were re-analyzed using multivariable logistic regression. Group A GDM women with greater HbA1c-FT had a higher risk for PTB (aOR:1.86, 95% CI:1.10-3.14) but not LGA babies (aOR:1.13, 95%: 0.70-1.83). The risk of PTB was higher for obese women in Group A-ob: aOR 3.28 [95% CI 1.68-6.39]. However, GDM women with normal HbA1c-FT exhibited no elevated risk for PTB: Groups B and B-ob had aORs of 1.30 (95% CI 0.86-1.98) and 1.28 (95% CI 0.88-1.85) respectively. South Asian GDM women with prediabetic HbA1c FT; 37-46mmol/mol (5.5-6.4%) are more likely to deliver preterm babies despite treatment, while the risk for LGA babies was the same as non-GDM women.

ASSOCIATION OF RISK FACTORS WITH PREVALENCE OF GESTATIONAL DIABETES MELLITUS

Objective: Gestational diabetes mellitus (GDM) is among the most common complications of pregnancy associated with adverse maternal and perinatal outcomes. There is an increased risk of gestational hypertension, preeclampsia, and operative delivery and their associated potential morbidities in women with GDM, especially in India, with increasing obesity, lifestyle, and dietary changes. Hence, this study was undertaken to study the prevalence of GDM and evaluate its maternal and neonatal outcomes. Methods: This study was conducted on 200 pregnant women between 26 and 28 weeks of gestation who were screened for GDM and diagnosed to have GDM based on WHO criteria. Risk factors associated with GDM and neonatal complications were studied. Results: Most of the GDM cases were significantly associated with body mass index (BMI) &gt;25 kg/m2, family history of diabetes, previous macrosomia/ large for gestational age (LGA) babies, and history of GDM with p&lt;0.001. The incidence of preeclampsia and polyhydramnios was significantly higher among GDM cases. Operative delivery and assisted (forceps) delivery had a strongly significant association with GDM (p&lt;0.001). Hypoglycemia was the most common complication noted in neonates of GDM women. The incidence of complications was also significantly higher among neonates born with GDM. Conclusion: Our study concluded that BMI, family history of diabetes, past GDM, and previous LGA babies were important risk factors for GDM. The study emphasizes the need to screen all pregnant women for GDM so that timely diagnosis and intervention will reduce both maternal and perinatal complications.

Information sharing and communication in management of large for gestational age babies in non‐diabetic mothers

Key content There is no specific UK guideline on how to identify or manage large for gestational age (LGA) fetuses in non‐diabetic mothers. There is conflicting evidence with regard to the optimal mode and timing of delivery in such women and babies in order to minimise the possible risks. Pre‐delivery patient–clinician discussion on management and mode of delivery in LGA babies can be challenging due to the lack of conclusive evidence and guidance for both screening and interventions, but it is crucial in order to facilitate information sharing, counselling and collaborative decision making. Decision‐making tools could help to facilitate these discussions and ensure ‘material risks’ are discussed. Learning objectives To be aware of the limitations of available methods for screening for LGA fetuses, specifically symphyseal fundal height and ultrasound estimation of fetal weight. To understand the lack of robust evidence for obstetric interventions, which makes it difficult to convey clear information in a practical and useful way. To consider the use of decision‐making tools (such as BRAIN and iDECIDE), which can provide a framework for shared decision making, particularly when the evidence is limited or conflicting. These tools offer a structure which empowers patients to weigh up information as well as assist clinicians in determining what is considered ‘material risk’ when counselling in line with the Montgomery ruling. Ethical issues The Montgomery ruling advises that doctors must discuss any ‘material risks’ involved in a proposed treatment and offer other reasonable alternatives. Clinicians, therefore, have a duty to be transparent about the lack of strong evidence to recommend one mode of birth over another but at the same time acknowledge that individual preference and perceptions need to be explored to enable personalised decision making.

Association between HbA1c Levels and Fetal Macrosomia and Large for Gestational Age Babies in Women with Gestational Diabetes Mellitus: A Systematic Review and Meta-Analysis of 17,711 Women.

Gestational diabetes mellitus (GDM) is the most common metabolic disorder in pregnancy. GDM is associated with serious maternal and fetal complications, in particular, fetal macrosomia and large for gestational age (LGA), which predisposes to a higher risk of childhood obesity and type 2 diabetes mellitus later in life. Early prediction and diagnosis of GDM leads to early interventions such as diet and lifestyle, which could mitigate the maternal and fetal complications associated with GDM. Glycated haemoglobin A1c (HbA1c) has been widely used for monitoring, screening for and diagnosing diabetes and prediabetes. Increasing evidence has also showed that HbA1c could indicate fetal glucose supply. Thus, we hypothesise that the HbA1c level at around 24 to 28 weeks may predict the development of fetal macrosomia or an LGA baby in women with GDM, which could be useful for better prevention of fetal macrosomia and LGA. We searched MEDLINE, EMBASE, Cochrane and Google Scholar databases from inception to November 2022 for relevant studies that reported at least one HbA1c level during 24-28 weeks of pregnancy and fetal macrosomia or an LGA baby. We excluded studies that were not published in the English language. No other search filters were applied during the search. Two independent reviewers selected eligible studies for meta-analysis. Two independent reviewers performed data collection and analyses. The PROSPERO registration number is CRD42018086175. A total of 23 studies were included in this systematic review. Of these, 8 papers reported data of 17,711 women with GDM that allowed for inclusion in a meta-analysis. The obtained results demonstrated the prevalence of fetal macrosomia was 7.4% and of LGA, 13.36%. Meta-analyses showed that the estimated pooled risk ratio (RR) for LGA in women with high HbA1c values compared to normal or low values was 1.70 (95% CI: 1.23-2.35), p = 0.001; and the pooled RR for fetal macrosomia was 1.45 (95% CI: 0.80 to 2.63), p = 0.215. Further research is needed to evaluate the utility of HbA1c levels in predicting the delivery of a baby with fetal macrosomia or LGA in pregnant women.

Abnormal birth weights for gestational age in relation to maternal characteristics in Sweden: a five year cross-sectional study

BackgroundAbnormal birth weight – small for gestational age (SGA) and large for gestational age (LGA) – are important indicators for newborn health. Due to changes in lifestyle in recent decades, it is essential to keep up-to-date with the latest information on maternal factors linked to abnormal birth weight. The aim of this study is to investigate SGA and LGA in relation to maternal individual, lifestyle and socioeconomic characteristics. .MethodsThis is a register-based cross-sectional study. Self-reported data from Sweden’s Salut Programme maternal questionnaires (2010–2014) were linked with records in the Swedish Medical Birth Register (MBR). The analytical sample comprised 5089 singleton live births. A Swedish standard method using ultrasound-based sex-specific reference curves defines the abnormality of birth weight in MBR. Univariable and multivariable logistic regressions were used to examine crude and adjusted associations between abnormal birth weights and maternal individual, lifestyle and socioeconomic characteristics. A sensitivity analysis, using alternative definitions of SGA and LGA under the percentile method, was undertaken.ResultsIn multivariable logistic regression, maternal age and parity were associated with LGA (aOR = 1.05, CI = 1.00, 1.09) and (aOR = 1.31, CI = 1.09, 1.58). Maternal overweight and obesity were strongly associated with LGA (aOR = 2.28, CI = 1.47, 3.54) and (aOR = 4.55, CI = 2.85, 7.26), respectively. As parity increased, the odds of delivering SGA babies decreased (aOR = 0.59, CI = 0.42, 0.81) and preterm deliveries were associated with SGA (aOR = 9.46, CI = 5.67, 15.79). The well-known maternal determinants of abnormal birthweight, such as unhealthy lifestyles and poor socioeconomic factors, were not statistically significant in this Swedish setting.ConclusionsThe main findings suggest that multiparity, maternal pre-pregnancy overweight and obesity are strong determinants for LGA babies. Public health interventions should address modifiable risk factors, especially maternal overweight and obesity. These findings suggest that overweight and obesity is an emerging public health threat for newborn health. This might also result in the intergenerational transfer of overweight and obesity. These are important messages for public health policy and decision making.

A comparison of perinatal outcomes following fresh blastocyst or cleavage stage embryo transfer in singletons and twins and between singleton siblings.

Are perinatal outcomes following fresh blastocyst versus fresh cleavage stage embryo transfer (ET) different in singletons, twins, and between singleton siblings? Singleton babies conceived following fresh blastocyst, versus cleavage stage, ET are less likely to be small for gestational age (SGA) or to have a congenital anomaly (a result confirmed by comparing singleton siblings), while singletons born following fresh blastocyst ET were at a higher risk of being large for gestational age (LGA) than their sibling born following fresh cleavage stage ET. Blastocyst stage transfer is now the preferred strategy in most IVF units. Previous studies have suggested that babies conceived through blastocyst transfer are at increased risk of preterm birth and LGA. A national population-based retrospective cohort study was performed using linked Human Fertilisation and Embryology Authority (HFEA) data on 130 516 IVF and ICSI livebirths occurring from 103 062 women between 2000 and 2017. We included women who had at least one singleton livebirth resulting from IVF/ICSI fresh embryo treatment, using their own eggs and partner's sperm. A linked HFEA dataset was analysed using a multilevel framework, which accommodated repeated IVF cycles resulting in livebirths in the same woman. A population-averaged robust Poisson model was used for binary outcomes and a multinomial logistic regression model was used for categorical outcomes. Unadjusted and adjusted risk ratios (aRRs) (95% CI) were calculated. There were 130 516 livebirths in 103 062 women, including 86 630 singletons, 43 886 twin births, and 5384 pairs of singleton siblings. In comparison with fresh cleavage stage ET, fresh blastocyst stage transfer in singletons was associated with a lower risk of low birthweight (aRR = 0.92; 95% CI 0.86, 0.99), lower risk of being SGA (0.83; 0.78, 0.89), and lower risk of congenital anomaly (0.79; 0.71, 0.89). This analysis did not show an increase in risk associated with preterm birth (1.00; 0.94, 1.06), high birthweight (0.99; 0.93, 1.06), LGA (0.99; 0.93, 1.05), and the chance of healthy singleton baby (1.00; 1.00, 1.02). Twins resulting from fresh blastocyst stage ET were at slightly higher risk of preterm birth (1.05; 1.02, 1.10) compared with twins conceived following fresh cleavage stage ET. There was insufficient evidence for an association with the other perinatal outcomes. Singleton siblings born following fresh blastocyst stage ET were at a higher risk of being LGA (1.57; 1.01, 2.46) and at lower risk of having a congenital anomaly (0.52; 0.28, 0.97) compared to their singleton siblings born following cleavage stage ET. There was some evidence of excess risk of preterm birth (1.42; 0.97, 2.23) associated with blastocyst stage transfer. However, we could not confirm an association between blastocyst stage ET and low birthweight (1.35; 0.81, 2.27), high birthweight (1.19; 0.80, 1.77), and the chance of being a healthy baby (0.97; 0.86, 1.09). This was an observational study where we were unable to adjust for some key confounders, such as maternal smoking status and BMI, which may change from one pregnancy to another and are not recorded in the HFEA dataset. In the largest study of its kind, our analysis of singleton siblings, corrected for unmeasured, non-time varying maternal factors, confirms the previously reported association between blastocyst transfer and LGA babies, and shows a reduced risk of congenital anomaly following blastocyst transfer. Our sibling analysis did not confirm a decreased risk of low birthweight following blastocyst transfer. Overall, absolute risks are low and there is insufficient evidence to challenge the practice of extended culture of embryos. This project is financed by an NHS Grampian Endowment Research Grant, project number 17/052. One of the authors, S.B., was the Editor in Chief of HROpen until 31 December 2022 and would have been in that role when the paper was first submitted. As an invited speaker, S.B. has received travel expenses, accommodation and honoraria from Merck, Organon, and Ferring. A.M. has received travel expenses, accommodation, and honoraria from Merck Serono, Cook Medical, Pharmasure, Gedeon Richter, and Ferring. D.J.M. is currently a HROpen Associate Editor. N/A.

Postnatal Growth and Prevalence of Obesity in Infants Born Large-for-Gestational Age during the First 3 years of Life: Personal Experience and Exploration of Current Literature.

We evaluated the growth patterns in a cohort of infants (n = 120) born large-for-gestational-age (LGA) [birth weight (Bwt) > 4 kg] from birth to age 3 years of age in comparison with normal age and sex-matched children (WHO). LGA infants had high weight for age Z score (WAZ) at birth that decreased significantly during the first 6 months of life (by a mean of - 0.67 SD) that was followed by significant gain during the following 6 months of life (around + 0.4 SD). These children grew on a higher centile of WAZ with no significant change during the second and third years of life. The prevalence of obesity (WAZ > 2) increased markedly from 24% at the end of their first year to 34% and 36% at the end of their second and third years of life, respectively. The mean length for age Z score (LAZ) decreased significantly during the first 6 months (by a mean of -0.9 SD) but was maintained at high centile (> 1 SD) during the second and 3rd years. The weight for length SDS (WLZ) increased significantly during the first 18 months of life and decreases gradually during the second half of the 2nd year and the 3rd year. Their head circumference SDS decreased significantly in the first 6 months and then sustained around the 70th centiles (+1 SD) in the following 18 months. Our study showed that in LGA babies obesity increased progressively after the first year of life to reach 36% at the end of the third year. Therefore, it is important to apply the early nutritional intervention to decrease the occurrence of obesity and reduce later cardiometabolic risks.

Gestational diabetes mellitus in early pregnancy amongst Asian Indian women: Evidence for poor pregnancy outcomes despite treatment.

To compare the pregnancy outcomes in women with gestational diabetes (GDM) based on the timing of diagnosis. This retrospective cohort study was conducted between January 2011 and September 2017 amongst 2638 Asian Indian pregnant women. The inclusion criteria included; singleton pregnancies having HbA1c <48 mmols/mol (6.5%) in the first trimester, GDM screening by 75 g OGTT using IADPSG criteria and delivery at our centre. The cohort was divided into 3 groups: Early GDM (E-GDM)-diagnosis <24 gestational weeks (Gw), Standard GDM (S-GDM)-diagnosis ≥24Gw, Non-GDM- No GDM ≥24 Gw. Multivariable logistic regression models compared the pregnancy outcomes between Non-GDM, S-GDM and E-GDM groups. A sub-group multivariable analysis was done amongst GDM women using gestational age at diagnosis both as a categorical and continuous variable. Compared to Non-GDM women, the odds were higher for premature birth, large for gestational age (LGA) babies, macrosomia, Neonatal ICU(NICU) admission and lower for normal vaginal delivery in the E-GDM group, but for the S-GDM group, the risk was higher for premature birth, LGA babies, NICU admission and induction of labour. Compared to GDM women in the 24-28 Gw category significantly higher odds for premature birth and LGA babies were observed in the <14 Gw category. A continuous increase of 19% odds for premature birth with every 4 weeks decrease in gestational age at GDM diagnosis was observed. Asian Indian women having a GDM diagnosis before 24Gw are at higher risk for adverse pregnancy events than those having diagnosis ≥24Gw or not having GDM.

Residential exposure to pesticides and birth outcomes using the Dutch birth registry

BACKGROUND AND AIM: To explore associations between residential exposure to specific pesticides and birth outcomes using individual level exposure and pregnancy/birth data. METHODS: From all singleton births from 2009-2013 in the Dutch birth registry we selected mothers &amp;#x3e;16 years-old living in non-urban areas that had complete address history and changed addresses at most once during pregnancy (N=325,435). We selected 12 active ingredients (AIs) with some evidence of reproductive toxicity and that were used in the Netherlands according to a farmers’ survey from 2008 and explored a further 127 AIs. We estimated amount used (kg) within buffers of 50, 100, 250 and 500 meters around each mother&amp;#x27;s home during pregnancy. We used generalized linear models to investigate associations between AIs and gestational age, birth weight, low birth weight (LBW), small for gestational age (SGA), large for gestational age (LGA), still births/infant mortality, and prematurity, adjusting for individual and area-level confounders. We further used minimax concave penalty with a stability selection step to identify which AIs could further be related to the birth outcomes among the 12 and the additional 127 AIs. RESULTS: Maternal residential exposure to linuron was associated with increased birth weight [β [95% confidence interval] 296.49 [56.07, 536.90], 74.32 [27.92, 120.72], 13.87 [6.86, 20.88] and 1.93 [0.56, 3.30], in 50m, 100m, 250m and 500m buffers) and higher odds of LGA babies (OR [95% CI] 5.72 [1.04, 31.58], 1.49 [1.06, 2.08], 1.07 [1.02, 1.13], 1.01 [1.00, 1.02], respectively). Variable selection also yielded the same associations, and further identified signals for a relationship between fluroxypir-meptyl and gestational age, picoxystrobin and LGA, and glufosinate and LBW. CONCLUSIONS: Residential proximity to linuron during pregnancy was associated to increased birth weight and being large for gestational in babies. Other possible associations were identified that need further investigation. KEYWORDS: residential pesticide exposure, birth registry

Demographic, socio-economic, obstetric, and behavioral factors associated with small-and large-for-gestational-age from a prospective, population-based pregnancy cohort in rural Nepal: a secondary data analysis

BackgroundIn South Asia, a third of babies are born small-for-gestational age (SGA). The risk factors are well described in the literature, but many studies are in high-and-middle income countries or measure SGA on facility births only. There are fewer studies that describe the prevalence of risk factors for large-for-gestational age (LGA) in low-income countries. We aim to describe the factors associated with SGA and LGA in a population-based cohort of pregnant women in rural Nepal.MethodsThis is a secondary data analysis of community-based trial on neonatal oil massage (22,545 women contributing 39,479 pregnancies). Demographic, socio-economic status (SES), medical/obstetric history, and timing of last menstruation were collected at enrollment. Vital signs, illness symptoms, and antenatal care (ANC) attendance were collected throughout the pregnancy and neonatal weight was measured for live births. We conducted multivariate analysis using multinomial, multilevel logistic regression, reporting the odds ratio (OR) with 95% confidence intervals (CIs). Outcomes were SGA, LGA compared to appropriate-for-gestational age (AGA) and were multiply imputed using birthweight recalibrated to time at delivery.ResultsSGA was associated with nulligravida (OR: 2.12 95% CI: 1.93–2.34), gravida/nulliparous (OR: 1.86, 95% CI: 1.26–2.74), interpregnancy intervals less than 18 months (OR: 1.16, 95% CI: 1.07–1.27), and poor appetite/vomiting in the second trimester, (OR: 1.27, 95% CI: 1.19–1.35). Greater wealth (OR: 0.78, 95% CI: 0.69–0.88), swelling of hands/face in the third trimester (OR: 0.81, 95% CI: 0.69–0.94) parity greater than five (OR: 0.77, 95% CI: 0.65–0.92), male fetal sex (OR: 0.91, 95% CI: 0.86–0.98), and increased weight gain (OR: 0.93 per weight kilogram difference between 2nd and 3rd trimester, 95% CI: 0.92–0.95) were protective for SGA.Four or more ANC visits (OR: 0.53, 95% CI: 0.41–0.68) and respiratory symptoms in the third trimester (OR: 0.67, 95% CI: 0.54–0.84) were negatively associated with LGA, and maternal age < 18 years (OR: 1.39, 95% CI: 1.03–1.87) and respiratory symptoms in the second trimester (OR: 1.27, 95% CI: 1.07–1.51) were positively associated with LGA.ConclusionsOur findings are in line with known risk factors for SGA. Because the prevalence and mortality risk of LGA babies is low in this population, it is likely LGA status does not indicate underlaying illness. Improved and equitable access to high quality antenatal care, monitoring for appropriate gestational weight gain and increased monitoring of women with high-risk pregnancies may reduce prevalence and improve outcomes of SGA babies.Trial RegistrationThe study used in this secondary data analysis was registered at Clinicaltrials.gov NCT01177111.

"Double Frozen Transfer" Could Influence the Perinatal and Children's Growth: A Nested Case-Control Study of 6705 Live Birth Cycles.

ObjectiveThis study aims to evaluate neonatal and children growth outcomes of cryotransfer of embryos developed from frozen gametes [double frozen transfer (DFT)].MethodsThis nested case-control study included 6,705 women who had a singleton live birth after embryo transfer at the Center for Reproductive Medicine, Shandong University, from 2008 to 2020. Of these, 745 women underwent frozen embryo transfer (FET) using embryos developed from frozen gametes (DFT). Propensity score methodology was used to balance the two groups by maternal age and body mass index (BMI) before evaluating outcomes. After age and BMI were matched using the propensity score methodology in a ratio of 1:4, the control groups enrolled 2,980 women who underwent fresh embryo transfer (ET) and 2,980 women underwent FET from fresh gametes. The children born were followed to at least 5 years of age, and some were followed up to 10 years. Neonatal outcomes and childhood growth measurements were compared among the three groups.ResultsThe average birth weight of the DFT group (3,462 g) was significantly higher than the FET group (3,458 g) and ET group (3,412 g). The rate of large for gestational age (LGA) babies in the DFT and FET group was higher than that for the ET group (30.9% vs. 24.8%; 29.4% vs. 24.8%, respectively). After adjusting for different confounder combinations in the three models, the birth weight and risk of LGA in the DFT and FET groups were still higher than in the ET group, and the values group of P for trend in the models were significant. In multiple linear regression analysis of the children’s development, the height Z-score of children born from the DFT and FET group was higher than that for children from the ET group (β = 0.21, 95% CI 0.07–0.35; b = 0.17, 95% CI 0.05–0.28, respectively). However, childhood growth measurements including body weight Z-score and BMI Z-score were not significantly different among the three groups. In addition, the proportion of male children born from DET was higher than that from ET.ConclusionsThere is an increased risk of LGA babies associated with pregnancies conceived from DFT. Children are inclined to be taller in the future in this group than after FET. The related etiology and pathophysiology mechanisms still need to be revealed. In the future, well-designed, observational studies with in-depth collection of patients’ characteristics may shed more light on this issue.

Comparative assessment of the health status of large for gestational age newborns

Our aim was to conduct a comparative assessment of the health status of large for gestational age (LGA) newborns. 348 full-term neonates who were born at the Republican Scientific and Practical Center “Mother and Child” were examined. The main group 1 (Gr1) consisted of 58 LGA newborns from mothers with diabetes mellitus (DM) type 1, the main group 2 (Gr2) consisted of 66 LGA babies from mothers without carbohydrate and lipid metabolism disorders, the main group 3 (Gr3) included 65 LGA babies from mothers with pregravid overweight or obesity, the control group (Gr4) had 159 newborns with the anthropometric parameters corresponding to the gestational age (AGA) from mothers without carbohydrate and lipid metabolism disorders. The negative impact of the mothers’ metabolic disorders on the newborns’ health status, functional state, and neuropsychological development was established. Babies born with macrosomia from mothers with DM were diagnosed with hypoglycemia, congenital pneumonia, hyperbilirubinemia, and neonatal encephalopathy much more often (p &lt; 0.001). LGA babies from obese women were characterized by polycythemia, hyperbilirubinemia, and neonatal encephalopathy. Polycythemia, hyperbilirubinemia, and toxic erythema were often noted in Gr2 patients. The cases of brachial plexus injuries and limb fractures were not registered. A slower rate of neuropsychological development was noted in large neonates in the analyzed groups, and was more pronounced in infants from mothers with diabetes mellitus and obesity. LGA newborns from mothers with DM had a high hospitalization rate at the intensive care unit, followed by the separation of mother and child and a lower breastfeeding rate in the neonatal period. Large newborns from mothers with DM and from women with obesity had a higher probability of adverse neonatal outcomes and a reduced health status in the neonatal period.

Can alanine aminotransferase measured in early pregnancy predict macrosomia?

Non-alcoholic fatty liver disease (NAFLD) is a part of the metabolic syndrome and is associated with adverse pregnancy outcomes. The aim of this study was to determine whether unexplained elevated ALT in early pregnancy has any effect in the prediction of large for gestational age (LGA) infants. In this study, the relationship between birth weights of LGA babies and babies with normal weight for gestational age (AGA) and ALT values measured in early pregnancy was evaluated. While a positive, moderately strong, statistically significant correlation was found between infant birth weight and ALT levels in LGA babies this correlation was continued when GDM was not detected and ALT levels were below 36 U/L. Foetal macrosomia, which can develop in advanced gestational weeks, can be predicted with this cheap, easy and simple method that can be checked in the first trimester and pregnancy follow-up can be shaped accordingly. IMPACT STATEMENT What is already known on this subject? It is suggested that asymptomatic high ALT values measured in the first trimester can predict a macrosomic foetus. What do the results of this study add? Asymptomatic elevated ALT values measured in the first trimester can predict a macrosomic foetus. What are the implications of these findings for clinical practice and/or further research? Macrosomic foetus development can be predicted with abnormal results obtained with this simple, cheap and easy measurement method measured in the first trimester and pregnancy follow-up can be managed accordingly.

Clinical consequences of gestational diabetes mellitus and maternal obesity as defined by asian BMI thresholds in Viet Nam: a prospective, hospital-based, cohort study

BackgroundGestational Diabetes Mellitus (GDM) is common in South East Asia, occurring at relatively lean Body Mass Index (BMI). Outside pregnancy, cardiometabolic risks increase at lower BMI in Asian populations, justifying Asian-specific thresholds for overweight and obesity. We aimed to explore the effects of GDM and obesity on perinatal outcomes using a WHO expert consultation-recommended Asian-specific definition of obesity.MethodsThis is a secondary analysis of a prospective, hospital-based, cohort study in Ho Chi Minh City. Participants were recruited from antenatal clinics between 19+ 0-22+ 6 weeks gestation and followed until delivery. GDM screening occurred between 24 and 28 weeks using WHO criteria. Obesity was defined as BMI ≥ 27.5 kg/m2, based on weight and height at recruitment. We assessed associations between GDM (singly, and in combination with obesity) and perinatal outcomes. Participants were categorised into four groups: no GDM/non-obese (reference group), GDM/non-obese, no GDM/obese and GDM/obese. Outcomes included primary caesarean section, hypertensive disorders of pregnancy (HDP), large-for-gestational-age (LGA), birth weight, preterm birth, and composite adverse neonatal outcome. Logistic and linear regressions were performed with adjustment for differences in baseline characteristics.ResultsAmong 4,970 participants, 908 (18%) developed GDM. Compared to women without GDM, GDM increased risks for preterm birth (OR: 1.40, 95% CI: 1.09–1.78), higher birthweight (birthweight z-score 0.16 versus 0.09, p = 0.027), and LGA (OR 1.14, 0.89–1.46). GDM without obesity was associated with an increased risk of preterm birth (OR 1.35, 1.04–1.74). Obese women without GDM were more likely to deliver by caesarean section and have an LGA baby (1.80, 1.33–2.44 and 2.75, 1.88–4.03). The highest risks were observed amongst women with both GDM and obesity: caesarean Sect. (2.43, 1.49–3.96), LGA (3.36, 1.94–5.80) and preterm birth (2.42, 1.32–4.44).ConclusionsGDM was associated with an increased risk of preterm birth and larger newborn size. Using an Asian-specific definition of obesity, we demonstrate obese women with GDM are at the highest risk of adverse outcomes. Using a BMI threshold in pregnancy of 27.5 kg/m2 (between 19 and 22 weeks gestation) for Asian women can identify women who will benefit from intensified diabetes, nutritional, and obstetric care. This has relevance for obstetric service delivery within Asia, and other health systems providing pregnancy care for Asian expatriate women.

Relationship of maternal body weight and gestational diabetes mellitus with large-for-gestational-age babies at birth in Taiwan: The TMICS cohort

ObjectiveTo determine if both gestational diabetes mellitus (GDM) and maternal overweight/obesity are independently associated with delivery of large-for-gestational-age (LGA) babies in Taiwan. Materials and methodsAnthropometric parameters were measured and 75-g oral glucose-tolerance tests were administered to a cohort of 1428 pregnant women at 24–28 weeks gestation at nine hospitals in Taiwan. GDM was diagnosed based on the International Association of Diabetes and Pregnancy Study Groups criteria. Reported pre-pregnancy BMI and measured BMI during pregnancy were recorded at the late stage of the second trimester and the third trimester. Neonatal anthropometrics were measured at delivery. Primary outcome was LGA, defined in this study as having a birth weight ≥90th percentile for gestational age defined by WHO or a Chinese growth reference, taking into consideration the racial/ethnic and environmental differences in growth around the world. Multiple logistic regression was used to examine associations of GDM and maternal overweight/obesity with outcomes. ResultsBased on WHO growth reference definition of LGA, subjects with pre-pregnancy BMI ≥24 and pregnancy BMI >28.4 were found to be 2.46 times (0.76–7.97) and 3.28 times (1.01–10.60), respectively, more likely to deliver LGA babies than subjects with normal pre-pregnancy and pregnancy BMIs. Compared to those without GDM, subjects with GDM were 7.55 (1.62–35.25) times more likely to deliver LGA babies. The odds ratios for delivering a baby with a birth weight ≥90th percentile were 11.40 (1.65–78.75) for those with GDM alone, 4.10 (1.07–15.65) for those with overweight/obesity alone and 15.75 (1.30–190.40) for those with both GDM and overweight/obesity, compared to those with no GDM and no overweightness. Women with both pre-pregnancy and pregnancy overweightness/obesity were 3.64 (1.07–12.34) times more likely to deliver LGA. The above results remained similar when analyzing data based on Chinese growth reference definition of LGA. ConclusionMaternal overweightness/obesity and GDM are independently associated with LGA. Their combination had a greater impact than either one alone.

Weight gain speed and z-score behavior in large prematures for gestational age.

Objective: to investigate the speed of weight gain (WG) and the z-score (E-z) of weight in premature neonates large for gestational age (LGA) during four weeks of hospitalization. Methods: a retrospective longitudinal study with premature neonates in a neonatal intensive care unit at a university hospital. Data were obtained from January 2017 to December 2018; 115 babies with gestational age (GA) ≥ 27 and < 37 weeks, non-twin, AGA or LGA were included. The WG (g/kg/day) was obtained from the nadir weight and the E-z was calculated online based on the Intergrowth-21st curves. Repeated-measures ANOVA and multiple linear regression were used to assess the association between WP and E-z and explanatory variables; p < 5 %. Results: mean GA was 32.5 weeks, birth weight was 1910 g and weight loss was 5 % at 7 days. WG was lower in LGA babies, with GI between 32 and 37 weeks (LGA, 9.2 ± 5.6 g/kg/day vs AGA, 13.9 ± 6.0 g/kg/day). The change in WG was explained by protein supply in AGA (B = 2.5 g/kg/day; 95 % CI, 0.7 to 4.3; and β = 0.543) and by GA in LGA (B = -0.05 g/kg/day; 95 % CI, -0.09 to -0.02; and β = -0.574). In the 4th week of hospitalization, weight E-z decreased similarly for LGAs and AGAs, and this variation was explained by growth. Conclusions: premature LGAs had lower WG compared to AGAs during the neonatal period. The linear and brain growth explained the variation in weight E-z among these preterms.

Induction of labor for a suspected large-for-gestational-age/macrosomic fetus.

Fetal macrosomia is defined as a birth weight of >4000g, while the term large for gestational age (LGA) is defined as an estimated fetal weight >90th centile for gestational age. Current data indicate that a significant proportion of the babies are LGA. Pregnancies involving LGA babies are associated with increased maternal and perinatal morbidity including caesarean section, postpartum hemorrhage, shoulder dystocia, and birth trauma. To reduce these complications, labor induction has been suggested as a possible solution. However, despite some high-quality evidence in favor of labor induction for suspected macrosomia/LGA, existing guidelines do not support routine induction of labor in this population. The aim of this paper is to critically appraise the available evidence and clinical practice recommendations and highlight the importance of shared decision making and individualized care based on clear counselling regarding the lack of a sensitive diagnostic tool for estimating fetal weight in the third trimester.

Performance of six birth-weight and estimated-fetal-weight standards for predicting adverse perinatal outcome: a 10-year nationwide population-based study.

To evaluate three birth-weight (BW) standards (Australian population-based, Fenton and INTERGROWTH-21st ) and three estimated-fetal-weight (EFW) standards (Hadlock, INTERGROWTH-21st and WHO) for classifying small-for-gestational age (SGA) and large-for-gestational age (LGA) and predicting adverse perinatal outcomes in preterm and term babies. This was a nationwide population-based study conducted on a total of 2.4 million singleton births that occurred from 24 + 0 to 40 + 6 weeks' gestation between 2004 and 2013 in Australia. The performance of the growth charts was evaluated according to SGA and LGA classification, and relative risk (RR) and diagnostic accuracy based on the areas under the receiver-operating-characteristics curves (AUCs) for stillbirth, neonatal death, perinatal death, composite morbidity and a composite of perinatal death and morbidity outcomes. The analysis was stratified according to gestational age at delivery (< 37 + 0 vs ≥ 37 + 0 weeks). Following exclusions, 2 392 782 singleton births were analyzed. There were significant differences in the SGA and LGA classification and risk of adverse outcomes between the six BW and EFW standards evaluated. For the term group, compared with the other standards, the INTERGROWTH-21st BW and EFW standards classified half the number of SGA (< 10th centile) babies (3-4% vs 7-11%) and twice the number of LGA (> 90th centile) babies (24-25% vs 8-15%), resulting in a smaller cohort of term SGA at higher risk of adverse outcome and a larger LGA cohort at lower risk of adverse outcome. For term SGA (< 3rd centile) babies, the RR of perinatal death using the two INTERGROWTH-21st standards was up to 1.5-fold higher than those of the other standards (including the WHO-EFW and Hadlock-EFW), while the INTERGROWTH-21st -EFW standard indicated a 12-26% reduced risk of perinatal death for LGA cases across centile thresholds. Conversely, for the preterm group, the WHO-EFW and Hadlock-EFW standards identified a higher SGA classification rate than did the other standards (18-19% vs 10-11%) and a 20-65% increased risk of perinatal death in term LGA babies. All BW and EFW charts had similarly poor performance in predicting adverse outcomes, including the composite outcome (AUC range, 0.49-0.62) for both preterm (AUC range, 0.58-0.62) and term (AUC range, 0.49-0.50) cases and across centiles. Furthermore, specific centile thresholds for identifying adverse outcomes varied markedly by chart between BW and EFW standards. This study addresses the recurrent problem of identifying fetuses at risk of morbidity and perinatal mortality associated with growth disorders and provides new insights into the applicability of international growth standards. Our findings of marked variation in classification and the similarly poor performance of prescriptive international standards and the other commonly used standards raise questions about whether the prescriptive international standards that were constructed for universal adoption are indeed applicable to a multiethnic population such as that of Australia. Thus, caution is needed when adopting universal standards for clinical and epidemiological use. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.