Reference charts for fetal biometric parameters in twin pregnancies according to chorionicity

Júnior, Edward Araujo; Ruano, Rodrigo; Javadian, Pouya; Martins, Wellington P.; Elito, Júlio; Pires, Cláudio Rodrigues; Filho, Sebastião Marques Zanforlin

doi:10.1002/pd.4318

Cited by 22 publications

(31 citation statements)

References 20 publications

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“…The EFW at 36 0/7 weeks of gestation was 2294 g, which was similar to that reported by Min et al [ 10 ] and Gabbay-Benziv et al [ 14 ], but lighter than that reported by Shivkumar et al [ 13 ], Araujo Junior et al [ 12 ], and Liao et al [ 11 ] (Table 3 ). This difference may be mainly due to differences in the study population’s race.…”

Section: Discussionsupporting

confidence: 86%

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An ultrasonographic estimated fetal weight reference for Japanese twin pregnancies

et al. 2018

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Purpose The purpose was to establish an estimated fetal weight (EFW) reference for twin pregnancies in Japan and to compare the growth of twins with singletons. Methods We retrospectively investigated Japanese women who delivered live-born twins at our center during the period from 2010 to 2016. The main exclusion criteria were monoamniotic twins, fetal reduction, maternal complications, twin–twin transfusion syndrome, fetal congenital anomalies, and patients with their first visit after 16 weeks’ gestation. The EFW was measured longitudinally from 16 to 37 weeks’ gestation. We calculated the posterior predictive distribution using hierarchical Bayesian models and determined the EFW corresponding to each Z -score. Results A total of 364 women (190 dichorionic and 174 monochorionic) were included, and the total number of examinations was 3952. The EFWs of a Z -score of 0 for twins at 20, 28, and 36 weeks’ gestation were 308, 1070, and 2294 g, respectively. The EFW of a Z -score of 0 for twins was 98–101% that of singletons until 21 weeks, gradually becoming lower than that of singletons and reaching 90–93% that of singletons after 27 weeks. Conclusion We established an EFW reference for Japanese twin pregnancies. The EFW of twins is similar to that of singletons until the mid-second trimester, gradually becoming lower than that of singletons and reaching about 90% that of singletons in the third trimester.

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Section: Discussionsupporting

confidence: 86%

“…Several reports have described a relationship between chorionicity and EFW for twins [ 10 , 12 – 14 ] (Table 3 ). Min et al [ 10 ] reported that MC twins were slightly lighter than DC twins; however, the difference was slight, and the proportions of races differed between the DC and MC populations.…”

Section: Discussionmentioning

confidence: 99%

An ultrasonographic estimated fetal weight reference for Japanese twin pregnancies

et al. 2018

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“…Their study demonstrated a lower EFW among twins compared with singletons, especially in the third trimester, with a larger difference compared with monochorionic twins than with dichorionic twins. Araujo et al constructed chorionicity‐specific references from a Brazilian population. Unlike other studies, they used a cross‐sectional methodology; however, despite the use of an ultranormal cohort (excluding all maternal chronic disease including diabetes and hypertension, as well as twin discordance), a comparison of references yielded similar EFWs for dichorionic twins relative to our results, up to 32 gestational weeks (±30 g).…”

Section: Discussionmentioning

confidence: 99%

Reference Values for Sonographically Estimated Fetal Weight in Twin Gestations Stratified by Chorionicity: A Single Center Study

2017

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“…Several studies have recommended the creation of growth curves specific to twins or the use of some already existent curves for twin infants. [43][44][45][46] Among the unfavorable outcomes are fetal death and neonatal death. The fetal death rate is higher among twin pregnancies than in singleton pregnancies.…”

Section: Perinatal Outcomes In Twin Pregnancymentioning

confidence: 99%

Multiple Pregnancy: Epidemiology and Association with Maternal and Perinatal Morbidity

Santana

Surita

Cecatti

2018

Rev Bras Ginecol Obstet

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Twin pregnancy accounts for 2 to 4% of total births, with a prevalence ranging from 0.9 to 2.4% in Brazil. It is associated with worse maternal and perinatal outcomes. Many conditions, such as severe maternal morbidity (SMM) (potentially life-threatening conditions and maternal near-miss) and neonatal near-miss (NNM) still have not been properly investigated in the literature. The difficulty in determining the conditions associated with twin pregnancy probably lies in its relatively low occurrence and the need for larger population studies. The use of the whole population and of databases from large multicenter studies, therefore, may provide unprecedented results. Since it is a rare condition, it is more easily evaluated using vital statistics from birth registries. Therefore, we have performed a literature review to identify the characteristics of twin pregnancy in Brazil and worldwide. Twin pregnancy has consistently been associated with SMM, maternal near-miss (MNM) and perinatal morbidity, with still worse results for the second twin, possibly due to some characteristics of the delivery, including safety and availability of appropriate obstetric care to women at a high risk of perinatal complications.

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Reference charts for fetal biometric parameters in twin pregnancies according to chorionicity

Abstract: Reference curves of biometric parameters in twin pregnancies were determined. Biometric parameters were statistically different between monochorionic and dichorionic pregnancies.

Cited by 22 publications

References 20 publications

An ultrasonographic estimated fetal weight reference for Japanese twin pregnancies

An ultrasonographic estimated fetal weight reference for Japanese twin pregnancies

Reference Values for Sonographically Estimated Fetal Weight in Twin Gestations Stratified by Chorionicity: A Single Center Study

Multiple Pregnancy: Epidemiology and Association with Maternal and Perinatal Morbidity

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