Growth curves for twins in Slovenia

Bricelj, Katja; Blickstein, Isaac; Bržan-Šimenc, Gabrijela; Janša, Vid; Lučovnik, Miha; Verdenik, Ivan; Trojner-Bregar, Andreja; Tul, Nataša

doi:10.1080/14767058.2016.1175425

Cited by 16 publications

(7 citation statements)

References 9 publications

(11 reference statements)

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“…In fact, there remains controversy as to which reference should be used to classify SGA twins, mainly due to the geographic and ethnic disparities in fetal growth pattern. Twin-specific birth weight percentiles for gestational age have been established and updated from regional or national databases [ 12 – 20 ]. However, these tools seem not popular because of lack of linking data to perinatal outcomes.…”

Section: Introductionmentioning

confidence: 99%

Should singleton birth weight standards be applied to identify small-for-gestational age twins?: analysis of a retrospective cohort study

Lin

Rao

Fan

et al. 2021

BMC Pregnancy Childbirth

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Background Twin birth weight percentiles are less popular in clinical management among twin pregnancies compared with singleton ones in China. This study aimed to compare the incidence and neonatal outcomes of small for gestational age (SGA) twins between the use of singleton and twin birth weight percentiles. Methods This was a retrospective cohort study of 3,027 pregnancies with liveborn twin pairs at gestational age of > 28 weeks. The newborns were categorized as SGA when a birthweight was less than the 10th percentile based on the singleton and twin references derived from Chinese population. Logistic regression models with generalized estimated equation (GEE) were utilized to evaluate the association between SGA twins and neonatal outcomes including neonatal unit admission, neonatal jaundice, neonatal respiratory distress (NRDS), neonatal asphyxia, ventilator support, hypoxic ischemic encephalopathy (HIE), bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), intracranial hemorrhage (ICH), culture-proven sepsis, neonatal death within 28 days after birth as well as the composite outcome. Results The incidence of SGA was 33.1 % based on the singleton reference and 7.3 % based on the twin reference. Both of SGA newborns defined by the singleton and twin references were associated with increases in neonatal unit admission, neonatal jaundice and ventilator support. In addition, SGA newborns defined by the twin reference were associated with increased rates of BPD (aOR, 2.61; 95 % CI: 1.18–5.78) as well as the severe composite outcome (aOR, 1.93; 95 % CI: 1.07–3.47). Conclusions The use of singleton birth weight percentiles may result in misdiagnosed SGA newborns in twin gestations and the twin birth weight percentiles would be more useful to identify those who are at risk of adverse outcomes.

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Section: Introductionmentioning

confidence: 99%

Should singleton birth weight standards be applied to identify small-for-gestational age twins?: analysis of a retrospective cohort study

Lin

Rao

Fan

et al. 2021

BMC Pregnancy Childbirth

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“…Studies of fetal growth in twins usually use absolute measures of birth weight, which are problematic because this measure cannot separate neonates, who are small due to preterm delivery, from those who are small due to intrauterine growth restriction. Therefore, we decided to use more appropriate twin-specific growth curves [16] , where percentiles for each gestational age were calculated.…”

Section: Discussionmentioning

confidence: 99%

“…We compared them with ”normally grown” twin group which was defined as total twin weight between 50th and 90th percentile for gestational age. To define the percentiles we used twin-specific growth curves, developed by Bricelj et al [16] .…”

Section: Methodsmentioning

confidence: 99%

Comparison of “growth promoted” and “normally grown” dichorionic–diamniotic twins: A population-based study

Pečlin

Kovač

Tul

et al. 2022

European Journal of Obstetrics & Gynecology and Reproductiv

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“…The final stage, stage III, brings restoration of the 1:1 growth ratio and remains until 40 weeks of gestation, maintaining 15-20% weight deficit compared to singletons [6,16]. Additionally, twins weighting between the 5th and 10th percentile present two decelerations of the growth pace-first, between the 28th and 31st weeks, and second, later during pregnancy, which could be related to increasing placental insufficiency when approaching term [19].…”

Section: Discussionmentioning

confidence: 99%

Predictive Accuracy of Singleton Versus Customized Twin Growth Chart for Adverse Perinatal Outcome: A Cohort Study

Nowacka

Kosińska-Kaczyńska²,

Krajewski

et al. 2021

IJERPH

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Background: Fetal growth of twins differs from singletons. The objective was to assess the fetal growth in twin gestations in relation to singleton charts and customized twin charts, respectively, followed by a comparison of the frequency of neonatal complications in small-for-gestational-age (SGA) twins. Methods: We performed an analysis of twin pregnancies with established chorionicity with particular emphasis on postnatal adverse outcomes in newborns classified as SGA. Neonatal birth weight was comparatively assessed using both singleton and twin growth charts with following percentile estimation. Using a statistical model, we established the prediction strength of neonatal complications in SGA twins for both methods. Results: The dataset included 322 twin pairs (247 cases of dichorionic and 75 cases of monochorionic diamniotic gestations). Utilization of twin-specific normograms was less likely to label twins as SGA—nevertheless, this diagnosis strongly correlated with risk of observing adverse outcomes. Using a chart dedicated for twin pregnancies predicted newborn complications in the SGA group with higher sensitivity and had better positive predictive value regarding postnatal morbidity. Conclusions: Estimating twin growth with customized charts provides better prognosis of undesirable neonatal events in the SGA group comparing to singleton nomograms and consequently might determine neonatal intensive care prenatal approach.

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Growth curves for twins in Slovenia

Cited by 16 publications

References 9 publications

Should singleton birth weight standards be applied to identify small-for-gestational age twins?: analysis of a retrospective cohort study

Should singleton birth weight standards be applied to identify small-for-gestational age twins?: analysis of a retrospective cohort study

Comparison of “growth promoted” and “normally grown” dichorionic–diamniotic twins: A population-based study

Predictive Accuracy of Singleton Versus Customized Twin Growth Chart for Adverse Perinatal Outcome: A Cohort Study

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