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

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

Author Araujo Junior, Edward Autor UNIFESP Google Scholar
Ruano, Rodrigo Google Scholar
Javadian, Pouya Google Scholar
Martins, Wellington P. Google Scholar
Elito Junior, Julio Autor UNIFESP Google Scholar
Pires, Claudio Rodrigues Google Scholar
Zanforlin Filho, Sebastiao Marques Google Scholar
Institution Referral Ctr Teaching Diagnost Imaging CETRUS
Universidade Federal de São Paulo (UNIFESP)
Texas Childrens Hosp
Universidade de São Paulo (USP)
Abstract ObjectiveThe objective of this article is to determine reference values for fetal biometric parameters in twin pregnancies and to compare these values between monochorionic and dichorionic pregnancies.MethodsA retrospective cross-sectional study was conducted among 157 monochorionic and 176 dichorionic twin pregnancies between 14 and 38 weeks of gestation. Biometric measurements included the biparietal diameter (BPD), abdominal circumference (AC), femurs length (FL) and estimated fetal weight (EFW). To evaluate the correlation between biometric parameters and gestational age, polynomial regression models were created, with adjustments using the coefficient of determination (R-2). Comparison between monochorionic and dichorionic pregnancies was performed using analysis of covariance.ResultsThe mean BPD, AC, FL and EFW for the dichorionic pregnancies were 56.16 mm, 191.1 mm, 41.08 mm and 816.1 g, respectively. the mean BPD, AC, FL and EFW for the monochorionic pregnancies were 57.14 mm, 184.2 mm, 39.29 mm and 723.4 g, respectively. There was a statistical difference between mono and dichorionic pregnancies for all the biometric parameters (BPD p = 0.012; AC p = 0.047; FL p = 0.007; EFW p = 0.011).ConclusionReference curves of biometric parameters in twin pregnancies were determined. Biometric parameters were statistically different between monochorionic and dichorionic pregnancies. (c) 2014 John Wiley & Sons, Ltd.
Language English
Date 2014-04-01
Published in Prenatal Diagnosis. Hoboken: Wiley-Blackwell, v. 34, n. 4, p. 382-388, 2014.
ISSN 0197-3851 (Sherpa/Romeo, impact factor)
Publisher Wiley-Blackwell
Extent 382-388
Access rights Closed access
Type Article
Web of Science ID WOS:000334443000012

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