A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk

Abstract Objective Our aim was to assess diagnostic accuracy in the prediction of small for gestational age (SGA <10th centile) and fetal growth restricted (FGR) (SGA <3rd centile) fetuses using three different sonographic methods in pregnancies at increased risk of fetal growth restriction: 1...

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Main Authors: Silvia Visentin, Ambrogio P. Londero, Ilaria Cataneo, Federica Bellussi, Ginevra Salsi, Gianluigi Pilu, Erich Cosmi
Format: Article
Language:English
Published: BMC 2022-03-01
Series:BMC Pregnancy and Childbirth
Subjects:
Online Access:https://doi.org/10.1186/s12884-022-04545-x
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author Silvia Visentin
Ambrogio P. Londero
Ilaria Cataneo
Federica Bellussi
Ginevra Salsi
Gianluigi Pilu
Erich Cosmi
author_facet Silvia Visentin
Ambrogio P. Londero
Ilaria Cataneo
Federica Bellussi
Ginevra Salsi
Gianluigi Pilu
Erich Cosmi
author_sort Silvia Visentin
collection DOAJ
description Abstract Objective Our aim was to assess diagnostic accuracy in the prediction of small for gestational age (SGA <10th centile) and fetal growth restricted (FGR) (SGA <3rd centile) fetuses using three different sonographic methods in pregnancies at increased risk of fetal growth restriction: 1) fetal abdominal circumference (AC) z-scores, 2) estimated fetal weight (EFW) z-scores according to postnatal reference standard; 3) EFW z-scores according to a prenatal reference standard. Methods Singleton pregnancies at increased risk of fetal growth restriction seen in two university hospitals between 2014 and 2015 were studied retrospectively. EFW was calculated using formulas proposed by the INTERGROWTH-21st project and Hadlock; data derived from publications by the INTEGROWTH-twenty-first century project and Hadlock were used to calculate z-scores (AC and EFW). The accuracy of different methods was calculated and compared. Results The study group included 406 patients. Prenatal standard EFW z-scores derived from INTERGROWTH-21st project and Hadlock and co-workers performed similarly and were more accurate in identifying SGA infants than using AC z-scores or a postnatal reference standard. The subgroups analysis demonstrated that EFW prenatal standard was more or similarly accurate compared to other methods across all subgroups, defined by gestational age and birth weight. Conclusions Prenatal standard EFW z-scores derived from either INTERGROWTH-21 st project or Hadlock and co-workers publications demonstrated a statistically significant advantage over other biometric methods in the diagnosis of SGA fetuses.
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spelling doaj.art-fdd341a72e0f4b878ca45827e95a400e2022-12-22T02:50:27ZengBMCBMC Pregnancy and Childbirth1471-23932022-03-012211710.1186/s12884-022-04545-xA prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased riskSilvia Visentin0Ambrogio P. Londero1Ilaria Cataneo2Federica Bellussi3Ginevra Salsi4Gianluigi Pilu5Erich Cosmi6Department of Woman’s and Child’s Health, Maternal-Fetal Medicine Unit, University of PaduaAcademic Unit of Obstetrics and Gynaecology, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Infant Health, University of GenoaObstetric Unit, Department of Medical and Surgical Sciences, University of BolognaObstetric Unit, Department of Medical and Surgical Sciences, University of BolognaObstetric Unit, Department of Medical and Surgical Sciences, University of BolognaObstetric Unit, Department of Medical and Surgical Sciences, University of BolognaDepartment of Woman’s and Child’s Health, Maternal-Fetal Medicine Unit, University of PaduaAbstract Objective Our aim was to assess diagnostic accuracy in the prediction of small for gestational age (SGA <10th centile) and fetal growth restricted (FGR) (SGA <3rd centile) fetuses using three different sonographic methods in pregnancies at increased risk of fetal growth restriction: 1) fetal abdominal circumference (AC) z-scores, 2) estimated fetal weight (EFW) z-scores according to postnatal reference standard; 3) EFW z-scores according to a prenatal reference standard. Methods Singleton pregnancies at increased risk of fetal growth restriction seen in two university hospitals between 2014 and 2015 were studied retrospectively. EFW was calculated using formulas proposed by the INTERGROWTH-21st project and Hadlock; data derived from publications by the INTEGROWTH-twenty-first century project and Hadlock were used to calculate z-scores (AC and EFW). The accuracy of different methods was calculated and compared. Results The study group included 406 patients. Prenatal standard EFW z-scores derived from INTERGROWTH-21st project and Hadlock and co-workers performed similarly and were more accurate in identifying SGA infants than using AC z-scores or a postnatal reference standard. The subgroups analysis demonstrated that EFW prenatal standard was more or similarly accurate compared to other methods across all subgroups, defined by gestational age and birth weight. Conclusions Prenatal standard EFW z-scores derived from either INTERGROWTH-21 st project or Hadlock and co-workers publications demonstrated a statistically significant advantage over other biometric methods in the diagnosis of SGA fetuses.https://doi.org/10.1186/s12884-022-04545-xSmall for gestational ageINTERGROWTH-21stPre-natal growth chartPost-natal growth chart
spellingShingle Silvia Visentin
Ambrogio P. Londero
Ilaria Cataneo
Federica Bellussi
Ginevra Salsi
Gianluigi Pilu
Erich Cosmi
A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
BMC Pregnancy and Childbirth
Small for gestational age
INTERGROWTH-21st
Pre-natal growth chart
Post-natal growth chart
title A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
title_full A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
title_fullStr A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
title_full_unstemmed A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
title_short A prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
title_sort prenatal standard for fetal weight improves the prenatal diagnosis of small for gestational age fetuses in pregnancies at increased risk
topic Small for gestational age
INTERGROWTH-21st
Pre-natal growth chart
Post-natal growth chart
url https://doi.org/10.1186/s12884-022-04545-x
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