期刊
JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH
卷 43, 期 8, 页码 1245-1255出版社
WILEY
DOI: 10.1111/jog.13373
关键词
aneuploidy; Down syndrome; fetus; genetic counseling; trisomy
资金
- National Center for Child Health and Development, Japan [24-3]
- Grants-in-Aid for Scientific Research [17K11241, 16K10106] Funding Source: KAKEN
AimThe purpose of this study was to report the 3-year experience of a nationwide demonstration project to introduce non-invasive prenatal testing (NIPT) of maternal plasma for aneuploidy, and review the current status of NIPT in Japan. MethodsTests were conducted to detect aneuploidy in high-risk pregnant women, and adequate genetic counseling was provided. The clinical data, test results, and pregnancy outcomes were recorded. We discuss the problems of NIPT on the basis of published reports and meta-analyses. ResultsFrom April 2013 to March 2016, 30613 tests were conducted at 55 medical sites participating in a multicenter clinical study. Among the 30613 women tested, 554 were positive (1.81%) and 30021 were negative (98.1%) for aneuploidy. Of the 289, 128, and 44 women who tested positive for trisomies 21, 18, and 13, respectively, and underwent definitive testing, 279 (96.5%), 106 (82.8%), and 28 (63.6%) were determined to have a true-positive result. For the 13481 women with negative result and whose progress could be traced, two had a false-negative result (0.02%). The tests were performed on the condition that a standard level of genetic counseling be provided at hospitals. ConclusionHere, we report on the 3-year nationwide experience with NIPT in Japan. It is important to establish a genetic counseling system to enable women to make informed decisions regarding prenatal testing. Moreover, a welfare system is warranted to support women who decide to give birth to and raise children with chromosomal diseases.
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