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Wu X, Guo D, Li Y, Xie X, Su L, Cai M, Zheng L, Lin N, Liang B, Huang H, Xu L. Prenatal diagnosis of non-mosaic sex chromosome abnormalities: a 10-year experience from a tertiary referral center. J Perinat Med 2023; 51:904-912. [PMID: 37138453 DOI: 10.1515/jpm-2022-0552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 03/27/2023] [Indexed: 05/05/2023]
Abstract
OBJECTIVES The aim of this study was to explore the frequency and profile of non-mosaic sex chromosome abnormalities detected in prenatal diagnosis over the past 10 years. METHODS We retrospectively reviewed pregnancies diagnosed with non-mosaic sex chromosome abnormalities between January 2012 and December 2021, using karyotyping and/or single nucleotide polymorphism (SNP) array. Maternal age, indications for testing, and outcomes were recorded. RESULTS Traditional karyotyping identified 269 (0.90 %) cases of non-mosaic sex chromosome abnormalities among 29,832 fetuses, including 249 cases of numerical abnormalities, 15 unbalanced structural abnormalities, and 5 balanced structural abnormalities. The overall detection rate of common sex chromosome aneuploidies (SCAs) was 0.81 %, with 47,XXY, 47,XXX, 47,XYY, and 45,X accounting for 0.32 , 0.19, 0.17, and 0.13 % respectively. All showed a fluctuating upward trend over the study period, except for 45,X. During the first five years (2012-2016), the major indication for testing was advanced maternal age (AMA), followed by abnormal ultrasound, abnormal noninvasive prenatal testing (NIPT), and abnormal maternal serum screening (MSS). In the second five years (2017-2021), the most frequent indication was abnormal NIPT, followed by AMA, abnormal ultrasound, and abnormal MSS. Among the 7,780 cases that underwent SNP array in parallel, an additional 29 clinically significant aberrations were detected. The most frequent aberration was a microdeletion in the Xp22.31 region, which was associated with X-linked ichthyosis. CONCLUSIONS Fetal sex chromosome abnormalities are important findings in prenatal diagnosis. The application of NIPT and SNP array technology has greatly improved the detection of SCAs and submicroscopic aberrations associated with sex chromosomes.
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Affiliation(s)
- Xiaoqing Wu
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
- Department of Laboratory Medicine, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Danhua Guo
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Ying Li
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Xiaorui Xie
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Linjuan Su
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Meiying Cai
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Lin Zheng
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Na Lin
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Bin Liang
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Hailong Huang
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center of Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, Fujian, P.R. China
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, Fujian, P.R. China
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Wu X, Su L, Shen Q, Guo Q, Li Y, Xu S, Lin N, Huang H, Xu L. Chromosomal Abnormalities and Pregnancy Outcomes for Fetuses With Gastrointestinal Tract Obstructions. Front Pediatr 2022; 10:918130. [PMID: 35783302 PMCID: PMC9245709 DOI: 10.3389/fped.2022.918130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/09/2022] [Indexed: 11/23/2022] Open
Abstract
Fetal gastrointestinal tract obstruction (GITO) is the most frequently encountered gastrointestinal defect in the prenatal period. This study aimed to investigate the genetic disorders and pregnancy outcomes of fetal GITO. We reviewed data from 70 pregnancies that were referred for invasive prenatal testing because of fetal GITO. According to the level of obstruction, they were classified into esophageal atresia/stenosis, duodenal atresia/stenosis, jejunal or ileal atresia/stenosis, or anal atresia. Traditional karyotyping was performed on all the 70 pregnancies, and chromosomal microarray analysis (CMA) was performed on 32 of them in parallel. Traditional karyotyping revealed twelve (17.1%) chromosomal abnormalities, including 11 cases of trisomy 21 (Down syndrome), and one case of a supernumerary marker chromosome related to Cat eye syndrome. According to the absence or presence of other ultrasound anomalies, they were categorized into isolated GITO (n = 36) and non-isolated GITO (n = 34). The rate of chromosomal abnormalities in the non-isolated GITO pregnancies was significantly higher than that in the isolated GITO pregnancies (29.4 vs. 5.5%, p < 0.05); the survival rate in the isolated group was significantly higher than that in the non-isolated group (67.6 vs. 34.4%, p < 0.05). Among the 32 cases where CMA was performed, an additional one (3.1%) copy number variant with clinical significance was noted in a fetus with normal karyotype. The microduplication on 7q12 was considered to be the genetic etiology of duodenal stenosis, although it was inherited from a phenotypically normal mother. Our study supports the strong association between Down syndrome and fetal GITO, especially duodenal stenosis. Our findings suggested that the risk of chromosomal abnormalities was increased when GITO was accompanied by other ultrasound anomalies; thus, chromosomal abnormalities and fetal anatomy should be carefully evaluated for pregnancy management of fetal GITO.
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Affiliation(s)
- Xiaoqing Wu
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China.,Department of Laboratory Medicine, Fujian Medical University, Fuzhou, China
| | - Linjuan Su
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Qingmei Shen
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Qun Guo
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Ying Li
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Shiyi Xu
- Department of Pediatrics, Guangxi Medical University, Nanning, China
| | - Na Lin
- Medical Genetic Diagnosis and Therapy Center of Fujian Provincial Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Hailong Huang
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Liangpu Xu
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
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Wu X, Su L, Shen Q, Guo Q, Li Y, Xu S, Lin N, Huang H, Xu L. Corrigendum: Chromosomal abnormalities and pregnancy outcomes for fetuses with gastrointestinal tract obstructions. Front Pediatr 2022; 10:976997. [PMID: 36389373 PMCID: PMC9644240 DOI: 10.3389/fped.2022.976997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/06/2022] [Indexed: 11/28/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fped.2022.918130.].
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Affiliation(s)
- Xiaoqing Wu
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China.,Department of Laboratory Medicine, Fujian Medical University, Fuzhou, China
| | - Linjuan Su
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Qingmei Shen
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Qun Guo
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Ying Li
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Shiyi Xu
- Department of Pediatrics, Guangxi Medical University, Nanning, China
| | - Na Lin
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Hailong Huang
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
| | - Liangpu Xu
- Department of Medical Genetic Diagnosis and Therapy Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth Defect, Fuzhou, China
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Wu X, Li Y, Lin N, Xie X, Su L, Cai M, Lin Y, Wang L, Wang M, Xu L, Huang H. Chromosomal microarray analysis for pregnancies with abnormal maternal serum screening who undergo invasive prenatal testing. J Cell Mol Med 2021; 25:6271-6279. [PMID: 34042265 PMCID: PMC8256361 DOI: 10.1111/jcmm.16589] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/05/2021] [Accepted: 04/19/2021] [Indexed: 01/05/2023] Open
Abstract
Recently, chromosomal microarray analysis (CMA) has been implemented as a first-tier test in pregnancies with ultrasound anomalies. However, its application for pregnancies with abnormal maternal serum screening (AMSS) only is not widespread. This study evaluated the value of CMA compared to traditional karyotyping in pregnancies with increased risk following first- or second-trimester maternal serum screening. Data from 3973 pregnancies with referral for invasive prenatal testing following AMSS were obtained from April 2016 to May 2020. Routine karyotyping was performed and single nucleotide polymorphism array was recommended. The foetuses were categorized according to the indications as AMSS only (group A) and AMSS with ultrasound anomalies (group B). CMA was performed on 713 prenatal samples. The proportion of women opting for CMA testing in both groups increased over the years. The incremental yield of clinically significant findings for pregnancies with high risk of screening results was similar to that for the foetuses with ultrasound soft markers (P > 0.05), but significantly lower than that for the foetuses with structural anomalies (P < 0.05). The total frequencies of variants of unknown significance in groups A and B showed no significant difference (P > 0.05). CMA should be performed for pregnant women undergoing prenatal invasive testing due to AMSS, especially with high-risk results, regardless of ultrasound findings.
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Affiliation(s)
- Xiaoqing Wu
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Ying Li
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Na Lin
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Xiaorui Xie
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Linjuan Su
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Meiying Cai
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Yuan Lin
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Linshuo Wang
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Meiying Wang
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Liangpu Xu
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
| | - Hailong Huang
- Fujian Provincial Key Laboratory for Prenatal Diagnosis and Birth DefectPrenatal Diagnosis Center of Fujian Provincial Maternity and Children HospitalAffiliated Hospital of Fujian Medical UniversityFuzhou CityChina
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