PMID- 37102283 OWN - NLM STAT- MEDLINE DCOM- 20230428 LR - 20230428 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 40 IP - 5 DP - 2023 May 10 TI - [The value of chromosomal microarray analysis and fluorescence in situ hybridization for the prenatal diagnosis of chromosomal mosaicisms]. PG - 527-531 LID - 10.3760/cma.j.cn511374-20230105-00004 [doi] AB - OBJECTIVE: To assess the value of chromosomal microarray analysis (CMA) and fluorescence in situ hybridization (FISH) for the prenatal diagnosis of chromosomal mosaicisms. METHODS: A total of 775 pregnant women who had visited the Prenatal Diagnosis Center of Yancheng Maternal and Child Health Care Hospital from January 2018 to December 2020 were selected as study subjects. Chromosome karyotyping analysis and CMA were carried out for all women, and FISH was used to validate the suspected mosaicism cases. RESULTS: Among the 775 amniotic fluid samples, karyotyping has identified 13 mosaicism cases, which yielded a detection rate of 1.55%. Respectively, there were 4, 3, 4 and 2 cases for sex chromosome number mosaicisms, abnormal sex chromosome structure mosaicisms, abnormal autosomal number mosaicisms and abnormal autosomal structure mosaicisms. CMA has only detected only 6 of the 13 cases. Among 3 cases verified by FISH, 2 cases were consistent with the karyotyping and CMA results, and clearly showed low proportion mosaicism, and 1 case was consistent with the result of karyotyping but with a normal result by CMA. Eight pregnant women had chosen to terminate the pregnancy (5 with sex chromosome mosaicisms and 3 with autosomal mosaicisms). CONCLUSION: For fetuses suspected for chromosomal mosaicisms, CMA, FISH and G-banding karyotyping should be combined to determine the type and proportion of mosaicisms more precisely in order to provide more information for genetic counseling. FAU - Zheng, Jianli AU - Zheng J AD - Department of Prenatal Diagnosis, Yancheng Maternity and Child Health Care Hospital, Yancheng, Jiangsu 224001, China. anningyc@126.com. FAU - An, Ning AU - An N FAU - Li, Min AU - Li M FAU - Xu, Mengjun AU - Xu M FAU - Guan, Yongjuan AU - Guan Y FAU - Liu, Jianbin AU - Liu J LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 SB - IM MH - Female MH - Pregnancy MH - Humans MH - *Mosaicism MH - In Situ Hybridization, Fluorescence MH - *Chromosome Disorders/genetics MH - Prenatal Diagnosis/methods MH - Chromosome Aberrations MH - Sex Chromosome Aberrations MH - Microarray Analysis/methods MH - Chromosomes EDAT- 2023/04/27 06:42 MHDA- 2023/04/28 06:41 CRDT- 2023/04/27 04:13 PHST- 2023/04/28 06:41 [medline] PHST- 2023/04/27 06:42 [pubmed] PHST- 2023/04/27 04:13 [entrez] AID - 940640096 [pii] AID - 10.3760/cma.j.cn511374-20230105-00004 [doi] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2023 May 10;40(5):527-531. doi: 10.3760/cma.j.cn511374-20230105-00004.