Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China

Background and objectiveIncreased nuchal translucency (NT) thickness measured at 11–14 weeks of gestation in fetuses has been linked to adverse pregnancy outcomes. This study aimed to evaluate pregnancy outcomes in fetuses with NT ≥3.0 mm.MethodsThis retrospective analysis included 4,200 singleton p...

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Main Authors: Zhenglong Guo, Wenke Yang, Qiongrui Zhao, Yuwei Zhang, Xin Wang, Jinming Wang, Ruili Wang, Bingtao Hao, Shixiu Liao
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-04-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2025.1514504/full
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author Zhenglong Guo
Wenke Yang
Qiongrui Zhao
Yuwei Zhang
Xin Wang
Jinming Wang
Ruili Wang
Ruili Wang
Bingtao Hao
Shixiu Liao
author_facet Zhenglong Guo
Wenke Yang
Qiongrui Zhao
Yuwei Zhang
Xin Wang
Jinming Wang
Ruili Wang
Ruili Wang
Bingtao Hao
Shixiu Liao
author_sort Zhenglong Guo
collection DOAJ
description Background and objectiveIncreased nuchal translucency (NT) thickness measured at 11–14 weeks of gestation in fetuses has been linked to adverse pregnancy outcomes. This study aimed to evaluate pregnancy outcomes in fetuses with NT ≥3.0 mm.MethodsThis retrospective analysis included 4,200 singleton pregnancies diagnosed with increased NT thickness (≥3.0 mm) through first-trimester ultrasound screening across 76 hospitals in Henan Province from 2017 to 2021. Follow-up on pregnancy outcomes was completed through telephone interviews and electronic medical records.ResultsAmong the 4,200 pregnancies with NT ≥3.0 mm, adverse pregnancy outcomes were observed in 31.5% of the fetuses. These outcomes included elective termination of pregnancy (TOP), spontaneous abortion (SA), threatened abortion (TA), and live birth with malformations. A total of 547 fetuses underwent further examination through karyotype analysis after genetic counseling, revealing that 10.2% were aneuploid, primarily due to Trisomy 21 (7.1%).ConclusionThe incidence of increased NT in our study was 0.49%, which was associated with chromosomal abnormalities and developmental disorders, leading to an increased risk of adverse pregnancy outcomes. Abnormal ultrasound soft markers, along with NT > 4 mm, may further elevate the risk of adverse pregnancy outcomes. These findings should be taken seriously in the context of further prenatal diagnosis for fetuses with increased NT.
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spelling doaj-art-0a976da5ae1f4bb5b6642e16cfa659db2025-08-20T02:18:59ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-04-011210.3389/fmed.2025.15145041514504Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, ChinaZhenglong Guo0Wenke Yang1Qiongrui Zhao2Yuwei Zhang3Xin Wang4Jinming Wang5Ruili Wang6Ruili Wang7Bingtao Hao8Shixiu Liao9Henan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaDepartment of Ultrasound, Henan Provincial People’s Hospital, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaHenan Provincial Key Laboratory of Genetic Diseases and Functional Genomics & National Health Commission Key Laboratory of Birth Defects Prevention, Medical Genetics Institute of Henan Province, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, ChinaBackground and objectiveIncreased nuchal translucency (NT) thickness measured at 11–14 weeks of gestation in fetuses has been linked to adverse pregnancy outcomes. This study aimed to evaluate pregnancy outcomes in fetuses with NT ≥3.0 mm.MethodsThis retrospective analysis included 4,200 singleton pregnancies diagnosed with increased NT thickness (≥3.0 mm) through first-trimester ultrasound screening across 76 hospitals in Henan Province from 2017 to 2021. Follow-up on pregnancy outcomes was completed through telephone interviews and electronic medical records.ResultsAmong the 4,200 pregnancies with NT ≥3.0 mm, adverse pregnancy outcomes were observed in 31.5% of the fetuses. These outcomes included elective termination of pregnancy (TOP), spontaneous abortion (SA), threatened abortion (TA), and live birth with malformations. A total of 547 fetuses underwent further examination through karyotype analysis after genetic counseling, revealing that 10.2% were aneuploid, primarily due to Trisomy 21 (7.1%).ConclusionThe incidence of increased NT in our study was 0.49%, which was associated with chromosomal abnormalities and developmental disorders, leading to an increased risk of adverse pregnancy outcomes. Abnormal ultrasound soft markers, along with NT > 4 mm, may further elevate the risk of adverse pregnancy outcomes. These findings should be taken seriously in the context of further prenatal diagnosis for fetuses with increased NT.https://www.frontiersin.org/articles/10.3389/fmed.2025.1514504/fullnuchal translucency thicknesspregnancy outcomefirst-trimester screeningchromosome abnormalitiesultrasound soft indicators
spellingShingle Zhenglong Guo
Wenke Yang
Qiongrui Zhao
Yuwei Zhang
Xin Wang
Jinming Wang
Ruili Wang
Ruili Wang
Bingtao Hao
Shixiu Liao
Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
Frontiers in Medicine
nuchal translucency thickness
pregnancy outcome
first-trimester screening
chromosome abnormalities
ultrasound soft indicators
title Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
title_full Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
title_fullStr Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
title_full_unstemmed Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
title_short Pregnancy outcomes of 4,200 fetuses with increased nuchal translucency in Henan, China
title_sort pregnancy outcomes of 4 200 fetuses with increased nuchal translucency in henan china
topic nuchal translucency thickness
pregnancy outcome
first-trimester screening
chromosome abnormalities
ultrasound soft indicators
url https://www.frontiersin.org/articles/10.3389/fmed.2025.1514504/full
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