Evidence map›Paper›PMID 42888509›Full record

ArticleJournal of clinical laboratory analysis2026

Combined Karyotyping, Copy Number Variation Sequencing, and Whole Exome Sequencing in the Prenatal Diagnosis of Congenital Heart Disease: Detection Rates and Phenotypic Associations.

Jieqiong Xie, Yanru Huang, Xingmei Yao, Lutan Zhang, Yixi Zhou, Wenbo Wang, Jian Zhang, Yunsheng Ge

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Article in Journal of clinical laboratory analysis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Jieqiong XieDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.ORCID https://orcid.org/0009-0001-9966-4039
Yanru HuangDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
Xingmei YaoDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.ORCID https://orcid.org/0000-0002-1869-6822
Lutan ZhangDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
Yixi ZhouDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
Wenbo WangDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
Jian ZhangDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.ORCID https://orcid.org/0009-0006-2813-0562
Yunsheng GeDepartment of Central Laboratory, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.ORCID https://orcid.org/0009-0006-2260-9636

Funding

2024 Fujian Provincial Natural Science Foundation Jointly Funded Project 2024J011344
6 · The paper itself

Abstract

objectiveThis study aimed to assess the value of genetic testing in the prenatal congenital heart disease (CHD) diagnosis and evaluate the relationship between genetic variants and prenatal phenotypes.

methodsA total of 235 fetuses with CHD were classified into three groups: A: isolated simple CHD, B: isolated complex CHD, and C: non-isolated CHD. All patients underwent karyotyping and copy number variation sequencing (CNV-seq), with whole-exome sequencing (WES) performed when indicated. Statistical analyses conducted using IBM SPSS assessed the diagnostic performance of the genetic testing and detection rates across CHD subtypes.

resultsKaryotyping and CNV-seq revealed that chromosomal abnormality detection, particularly numerical abnormalities, was significantly associated with extracardiac anomalies (p < 0.05). In contrast, the detection rates of pathogenic/likely pathogenic (P/LP) CNVs (CNV-seq, p = 0.384) and pathogenic gene variants (WES, p = 0.624) did not differ significantly among the three groups. The severity of intracardiac abnormalities, the presence of extracardiac anomalies, and the detection of genetic abnormalities significantly influenced parental decisions regarding pregnancy termination (p < 0.05). The combination of karyotyping and CNV-seq increased the detection rate by 5.11%. In karyotyping/CNV-seq-negative fetuses who underwent WES, WES increased the detection rate by 37.21% (16/43).

conclusionCombined genetic testing significantly improved the detection rate and the detection of chromosomal numerical abnormalities was strongly associated with the presence of extracardiac anomalies. Parental decisions regarding pregnancy continuation were significantly influenced by the severity of intracardiac abnormalities, the presence of extracardiac anomalies, and the identification of genetic abnormalities.

Indexed as

congenital heart diseasecopy number variation sequencingkaryotype analysisprenatal diagnosiswhole‐exome sequencing

Identifiers

PMID42888509
PMCPMC13675537

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