G-ROP Criteria for Predicting Retinopathy of Prematurity Among Neonates with Different Birth Weight Percentiles

Abstract Purpose: To determine whether being small for gestational age (SGA), appropriate for gestational age (AGA) and large for gestational age (LGA) affected the sensitivity and specificity of Postnatal Growth and Retinopathy of Prematurity (G-ROP) model. Methods: We applied the G-ROP criteria, except hydrocephalus, for prematures retrospectively. The infants were divided into three subgroups according to birth weight percentiles (SGA, AGA, LGA), and the performance of the G-ROP criteria was tested for each group by calculating sensitivity and specificity for any stage retinopathy of prematurity (ROP) and severe ROP. Severe ROP was defined as ROP needing treatment. Results: Three hundred and ninety neonates screened for ROP were included. The gestational age and birth weight of the neonates were 29.3±2.9 weeks and 1302.9±416 g, respectively. There were 41 (10.5%) SGA, 312 (80%) AGA and 37 (9.5%) LGA neonates. The sensitivity of the model for any ROP was 67.8%, 66.7%, 73.2%, 55.6% for all of the patients in the study, SGA, AGA, and LGA neonates, respectively. The sensitivity of the model for severe ROP in all group and for each subgroup was 100%. The specificity of the model for any ROP was 65.9%, 70.6%, 87.7%, 90% for all of the patients, SGA, AGA, and LGA neonates, respectively. The specificity for severe ROP was 46.4%, 50%, 44%, 63.6% for all of the patients, SGA, AGA, and LGA neonates, respectively.Conclusion: The sensitivity and specificity of the G-ROP model in SGA infants were similar with the whole group, but was different between SGA, AGA and LGA neonates. Although the model did not miss any severe ROP, the specificity of the model for severe ROP was found low.

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IGF-II expression and methylation in small for gestational age infants

Journal of Pediatric Endocrinology and Metabolism ◽

10.1515/jpem-2014-0269 ◽

2015 ◽

Vol 28 (5-6) ◽

Cited By ~ 5

Author(s):

Shulian Zhang ◽

Guanpeng Zhai ◽

Jin Wang ◽

Wenjing Shi ◽

Rong Zhang ◽

...

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Small For Gestational Age ◽

Newborn Infants ◽

Adult Life ◽

Adverse Outcomes ◽

Large For Gestational Age ◽

Increased Risk ◽

The Status ◽

Appropriate For Gestational Age

AbstractLow birth weight is associated with an increased risk of adverse outcomes in many diseases in adult life. We investigated the expression of IGF-II and the status of differentially methylated regions (DMR) in small for gestational age (SGA) infants after birth.Plasma IGF-II, IGF-II receptor (IGF2R), IGF-I, and IGF-binding protein 3 (IGFBP3) levels were measured after birth in 150 newborn infants. These included 30 term appropriate for gestational age (AGA), 30 term SGA, 30 term large for gestational age (LGA), 30 preterm AGA, and 30 preterm SGA infants.Plasma IGF-II levels after birth were lower in both term SGA (435.1±33.82 vs. 620.4±44.79, p=0.002) and LGA infants (483.7±33.8 vs. 620.42±44.79, p=0.018) than in term AGA infants. The expression ofIGF-II was associated with birth weight and expressed at high levels, which suggests that IGF-II may continue to play an important role after birth.

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Comparison of Phototherapy Results in Small-for-Gestational-Age and Appropriate-for-Gestational-Age Infants Weighing Less Than 2,000 Grams

PEDIATRICS ◽

10.1542/peds.75.2.413 ◽

1985 ◽

Vol 75 (2) ◽

pp. 413-441

Author(s):

Joan E. Hodgman ◽

Paul Y. K. Wu ◽

Nathaniel B. White ◽

Dolores A. Bryla

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Small For Gestational Age ◽

Congenital Defects ◽

Intrauterine Growth ◽

Appropriate For Gestational Age ◽

Study Population ◽

Similar Weight ◽

Gestational Age At Birth ◽

Evaluation Techniques

The infant who is small for gestational age (SGA) is more mature at birth than similar weight infants who are appropriate for gestational age (AGA). Whether the SGA infant behaves as does the larger gestationally equivalent infant, or whether there are specific changes related to intrauterine growth retardation is a matter of some interest in the understanding of the special needs of these infants. The National Institute of Child Health and Human Development (NICHD) phototherapy study provided a large newborn population for whom birth weight, gestational age at birth, and, thereby, intrauterine growth were carefully assessed. Infants who weighed 2,000 g or more at birth were included in the study only when they became jaundiced, whereas infants who weighed less than 2,000 g at birth were routinely entered into the study. Consequently, this report will be limited to the lowbirth-weight population selected by birth weight. Too few SGA babies were present in the groups with greater birth weight to allow meaningful comparisons. PATIENT SELECTIQN All infants whose birth weight was less than 2,000 g were entered into the study at 24 ± 12 hours. Those excluded from the study were: (1) infants who died before 24 hours, (2) infants with serious congenital defects, and (3) infants whose mothers refused consent for study. The study population consisted of 922 infants surviving at 24 hours. Gestational age was calculated from the first day of the last menstrual period obtained from maternal history and also by the evaluation techniques of Dubowitz.25 Intrauterine growth was determined by plotting birth weight and gestational age on the Denver Intrauterine Growth Curves8; infants below the 10th percentile were considered SGA.

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Eruption chronology of the first deciduous teeth in children born prematurely with birth weight less than 1500g

Revista Paulista de Pediatria ◽

10.1590/s0103-05822014000100004 ◽

2014 ◽

Vol 32 (1) ◽

pp. 17-23 ◽

Cited By ~ 6

Author(s):

Pedro Garcia F. Neto ◽

Mario Cicero Falcao

Keyword(s):

Birth Weight ◽

Nutritional Status ◽

Premature Infants ◽

Gestational Age ◽

Small For Gestational Age ◽

Deciduous Teeth ◽

Appropriate For Gestational Age ◽

Eruption Age ◽

Student’S T ◽

Student’S T Test

Objective: To describe the eruption chronology of the first deciduous teeth in premature infants with birth weight less than 1500g and to compare it according to gender and nutritional status at birth. Methods: Longitudinal study including 40 low birth weight premature infants of both genders. The tooth was considered erupted when the crown went through the gum and became part of the oral environment. The comparison of the eruption chronology in relation to gender and among children appropriate or small for gestational age was done by Student's t-test, being significant p<0.05. Results: The eruption of the first tooth (teeth) occurred, on average, with 11.0±2.1 months of chronological age and with 9.6±1.9 months corrected for prematurity. The first erupted teeth were the lower central incisors. The average eruption for males was 9.7±1.9 and, for females, 9.5±1.9 months, both corrected for prematurity (p=0.98). The average eruption in children with birth weight appropriate for gestational age was 10.1±1.4 months; for small for gestational age, it was 9.4±2.2, also corrected for prematurity (p=0.07). Conclusions: The average eruption age of the first teeth, corrected for prematurity, was 9.6 months. Sex and nutritional status at birth did not change the eruption chronology.

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Serum Thymic Hormone Activity and Cell-Mediated Immunity in Healthy Neonates, Preterm Infants, and Small-for-Gestational Age Infants

PEDIATRICS ◽

10.1542/peds.67.3.407 ◽

1981 ◽

Vol 67 (3) ◽

pp. 407-411

Author(s):

R. K. Chandra

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Gestational Age ◽

Small For Gestational Age ◽

Lymphocyte Stimulation ◽

Cell Mediated Immunity ◽

Low Birth Weight Infants ◽

Thymic Hormone ◽

Appropriate For Gestational Age

Groups of healthy, small-for-gestational age (SGA) and preterm appropriate-for-gestational age (AGA) infants were studied at birth, 1 month, 3 months, and 12 months of age. Serum thymic hormone (TH) activity was assayed, the number of T lymphocytes in the peripheral blood was counted, and in vitro lymphocyte stimulation responses to phytohemagglutinin (PHA) were evaluated. TH activity was decreased in 1-month-old SGA infants. T cells were reduced in all low birth weight infants; the number reverted to normal by 3 months of age in preterm AGA infants, whereas it remained low for at least 12 months in the SGA group. Lymphocyte stimulation response was decreased in low birth weight infants; the extent of depression paralleled reduction in T lymphocyte number. These observations indicate that cell-mediated immunity is impaired in low birth weight newborns and reduced TH activity may be one of the pathogenetic factors involved. Persistent depression of immunocompetence may underlie the increased susceptibility of SGA infants to infection-related morbidity and mortality.

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Colloid Osmotic Pressure in Newborn Infants: Variations with Birth Weight, Gestational Age, Total Serum Solids, and Mean Arterial Pressure

PEDIATRICS ◽

10.1542/peds.68.6.814 ◽

1981 ◽

Vol 68 (6) ◽

pp. 814-819

Author(s):

Paul Y. K. Wu ◽

Gary Rockwell ◽

Linda Chan ◽

Shu-Mei Wang ◽

Vikram Udani

Keyword(s):

Blood Pressure ◽

Birth Weight ◽

Osmotic Pressure ◽

Gestational Age ◽

Small For Gestational Age ◽

Newborn Infants ◽

Colloid Osmotic Pressure ◽

Large For Gestational Age ◽

Total Serum ◽

Arterial Blood

Colloid osmotic pressure (COP) of blood was measured directly at birth with the Wescor membrane colloid osmometer (model 4100) in 91 appropriately grown, 11 large, and nine small for gestational age "well" newborn infants. COP correlated directly with birth weight (r = .726, P < .00001) and gestational age (r = .753, P < .00001). COP values for small for gestational age (SGA) and large for gestational age (LGA) infants were found to fall within the 95% prediction interval with regard to birth weight and gestational age for appropriate for gestational age (AGA) infants. Simultaneous measurements of COP, total serum solids, and central arterial mean blood pressure were made. The results showed that COP correlated directly with total serum solids (r = .89, P < .0001) and mean arterial blood pressure (r = .660, P < .001). Among the factors evaluated, total serum solids was the best predictor of COP.

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Leptin levels at birth and in early postnatal life in small- and appropriate-for-gestational-age infants

Medicina ◽

10.3390/medicina43100100 ◽

2007 ◽

Vol 43 (10) ◽

pp. 784 ◽

Cited By ~ 22

Author(s):

Margarita Valūnienė ◽

Rasa Verkauskienė ◽

Margaret Boguszewski ◽

Jovanna Dahlgren ◽

Danutė Lašienė ◽

...

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Small For Gestational Age ◽

Venous Blood ◽

Postnatal Life ◽

Abrupt Decrease ◽

Blood Samples ◽

Appropriate For Gestational Age ◽

Early Postnatal Life ◽

The Impact

The aim of this study was to evaluate leptin concentration at birth and in early postnatal life in small- and appropriate-for-gestational-age infants and to assess its relationship with infants’ anthropometry at birth and some characteristics of maternal pregnancy. Materials and methods. A total of 367 infants born after 32–42 weeks of gestation were enrolled in the study. Umbilical cord blood samples were collected from 80 small- and 287 appropriate- for-gestational-age newborns. Altogether, 166 venous blood samples were taken from these neonates on days 2–6 of life. Results. Cord leptin levels were significantly lower in small- compared to appropriate-forgestational- age infants. We observed a positive correlation between cord leptin and birth weight, all neonatal anthropometric parameters, placental weight, and some maternal nutritional factors. In multivariate analysis, cord leptin concentration explained up to 15% of the variation in sum of newborn’s skinfold thickness but only 5% of the variation in birth weight. Postnatally, leptin concentration decreased markedly to the similar low levels in both infant groups and remained so during the first postnatal week. Conclusions. Significantly lower cord leptin concentration in small-for-gestational-age neonates reflects a lower fat mass content compared to appropriate-for-gestational-age infants. However, an abrupt decrease in leptin levels shortly after birth in both groups suggests that placenta could be an important source of leptin in fetal circulation. The impact of low leptin levels at birth in small-for-gestational-age infants on their postnatal appetite and weight gain remains to be elucidated in future studies.

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Gestational Weight Gain and Pregnancy Outcomes among Nulliparous Women

American Journal of Perinatology ◽

10.1055/s-0039-1696640 ◽

2019 ◽

Author(s):

Annie M. Dude ◽

William Grobman ◽

David Haas ◽

Brian M. Mercer ◽

Samuel Parry ◽

...

Keyword(s):

Weight Gain ◽

Birth Weight ◽

Gestational Weight Gain ◽

Gestational Age ◽

Small For Gestational Age ◽

Pregnancy Outcomes ◽

Large For Gestational Age ◽

Gestational Weight ◽

Excessive Gestational Weight Gain ◽

Hypertensive Disorders

Abstract Objective To determine the association between total gestational weight gain and perinatal outcomes. Study Design Data from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-To-Be (NuMoM2b) study were used. Total gestational weight gain was categorized as inadequate, adequate, or excessive based on the 2009 Institute of Medicine guidelines. Outcomes examined included hypertensive disorders of pregnancy, mode of delivery, shoulder dystocia, large for gestational age or small for-gestational age birth weight, and neonatal intensive care unit admission. Results Among 8,628 women, 1,666 (19.3%) had inadequate, 2,945 (34.1%) had adequate, and 4,017 (46.6%) had excessive gestational weight gain. Excessive gestational weight gain was associated with higher odds of hypertensive disorders (adjusted odds ratio [aOR] = 2.05, 95% confidence interval [CI]: 1.78–2.36) Cesarean delivery (aOR = 1.24, 95% CI: 1.09–1.41), and large for gestational age birth weight (aOR = 1.49, 95% CI: 1.23–1.80), but lower odds of small for gestational age birth weight (aOR = 0.59, 95% CI: 0.50–0.71). Conversely, inadequate gestational weight gain was associated with lower odds of hypertensive disorders (aOR = 0.75, 95% CI: 0.62–0.92), Cesarean delivery (aOR = 0.77, 95% CI: 0.65–0.92), and a large for gestational age birth weight (aOR = 0.72, 95% CI: 0.55–0.94), but higher odds of having a small for gestational age birth weight (aOR = 1.64, 95% CI: 1.37–1.96). Conclusion Both excessive and inadequate gestational weight gain are associated with adverse maternal and neonatal outcomes.

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Large-for-gestational-age phenotypes and obesity risk in adulthood: a study of 195,936 women

Scientific Reports ◽

10.1038/s41598-020-58827-5 ◽

2020 ◽

Vol 10 (1) ◽

Cited By ~ 2

Author(s):

José G. B. Derraik ◽

Sarah E. Maessen ◽

John D. Gibbins ◽

Wayne S. Cutfield ◽

Maria Lundgren ◽

...

Keyword(s):

Birth Weight ◽

Gestational Age ◽

Reference Group ◽

Ponderal Index ◽

Large For Gestational Age ◽

Adjusted Relative Risk ◽

Obesity Risk ◽

Increased Risk ◽

Appropriate For Gestational Age ◽

Using Data

AbstractWhile there is evidence that being born large-for-gestational-age (LGA) is associated with an increased risk of obesity later in life, the data are conflicting. Thus, we aimed to examine the associations between proportionality at birth and later obesity risk in adulthood. This was a retrospective study using data recorded in the Swedish Birth Register. Anthropometry in adulthood was assessed in 195,936 pregnant women at 10–12 weeks of gestation. All women were born at term (37–41 weeks of gestation). LGA was defined as birth weight and/or length ≥2.0 SDS. Women were separated into four groups: appropriate-for-gestational-age according to both weight and length (AGA – reference group; n = 183,662), LGA by weight only (n = 4,026), LGA by length only (n = 5,465), and LGA by both weight and length (n = 2,783). Women born LGA based on length, weight, or both had BMI 0.12, 1.16, and 1.08 kg/m2 greater than women born AGA, respectively. The adjusted relative risk (aRR) of obesity was 1.50 times higher for those born LGA by weight and 1.51 times for LGA by both weight and height. Length at birth was not associated with obesity risk. Similarly, women born LGA by ponderal index had BMI 1.0 kg/m2 greater and an aRR of obesity 1.39 times higher than those born AGA. Swedish women born LGA by weight or ponderal index had an increased risk of obesity in adulthood, irrespective of their birth length. Thus, increased risk of adult obesity seems to be identifiable from birth weight and ignoring proportionality.

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Serum Microelements in Early Pregnancy and their Risk of Large-for-Gestational Age Birth Weight

Nutrients ◽

10.3390/nu12030866 ◽

2020 ◽

Vol 12 (3) ◽

pp. 866 ◽

Cited By ~ 2

Author(s):

Małgorzata Lewandowska ◽

Jan Lubiński

Keyword(s):

Birth Weight ◽

Early Pregnancy ◽

Gestational Age ◽

Preliminary Evidence ◽

Large For Gestational Age ◽

Female Fetus ◽

Appropriate For Gestational Age ◽

Nested Case Control ◽

Relationship Of

Excessive birth weight has serious perinatal consequences, and it “programs” long-term health. Mother’s nutritional status can be an important element in fetal “programming”; microelements such as selenium (Se), zinc (Zn), copper (Cu), and iron (Fe) are involved in many metabolic processes. However, there are no studies assessing the relationship of the microelements in the peri-conceptual period with the risk of excessive birth weight. We performed a nested case control study of serum microelements’ levels in the 10–14th week of pregnancy and assessed the risk of large-for-gestational age (LGA) newborns using the data from a prospective cohort of pregnant women recruited in 2015–2016 in Poznań, Poland. Mothers delivering LGA newborns (n = 66) were examined with matched mothers delivering appropriate-for-gestational age (AGA) newborns (n = 264). Microelements’ levels were quantified using mass spectrometry. The odds ratios of LGA (and 95% confidence intervals) were calculated by multivariate logistic regression. In the whole group, women with the lowest quartile of Se had a 3 times higher LGA risk compared with women in the highest Se quartile (AOR = 3.00; p = 0.013). Importantly, the result was sustained in the subgroup of women with the normal pre-pregnancy BMI (AOR = 4.79; p = 0.033) and in women with a male fetus (AOR = 6.28; p = 0.004), but it was not sustained in women with a female fetus. There were no statistical associations between Zn, Cu, and Fe levels and LGA. Our study provides some preliminary evidence for the relationships between lower serum Se levels in early pregnancy and a higher risk of large-for-gestational age birth weight. Appropriate Se intake in the periconceptual period may be important for optimal fetal growth.

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