COMMENTS ON THE RESULTS OF CHORIONIC VILLUS SAMPLING AT HANOI OBSTETRICS AND GYNECOLOGY HOSPITAL
Main Article Content
Abstract
Objective: To evaluate the results and diagnostic effectiveness of chorionic villus sampling at Hanoi Obstetrics and Gynecology Hospital.
Research methods: A descriptive retrospective study was conducted on 102 pregnant women who underwent chorionic villus sampling from January 2022 to June 2024.
Results: 100% success rate of sampling, no complications. Genetic abnormalities were detected in 49.02% of cases, including Down syndrome (18.63%), Edwards syndrome (4.90%), Patau syndrome (0.98%), sex chromosome abnormalities (3.92%), combined Edwards and sex chromosome abnormalities (0.98%), and single-gene disorders (19.61%). There was a significant correlation between high-risk NIPS and abnormal chorionic villus sampling results (p < 0.05). In 13 cases of abnormal ultrasound of organs with chromosomal abnormalities 11 cases (86.96%). Post-procedure pregnancy outcomes showed 49.02% termination due to severe genetic abnormalities, while 50.98% continued uneventfully.
Conclusions: Chorionic villus sampling is an early, accurate, and safe prenatal diagnostic method, particularly effective in pregnancies with high-risk NIPS or abnormal ultrasound findings.
Article Details
Keywords
Chorionic villus sampling, prenatal diagnosis, chromosomal abnormalities, single-gene disorders.
References
[2] Maines J, Montero F.J. Chorionic villus sampling. In: StatPearls. Treasure Island (FL), 2025. https://pubmed.ncbi.nlm.nih.gov/33085448/
[3] Khalil A, Akolekar R et al. Chorionic villus sampling at 11 to 13 weeks of gestation and hypertensive disorders in pregnancy. Obstet Gynecol, 2010, 116 (2 Pt 1): 374-380. doi: 10.1097/AOG.0b013e3181e7ce75.
[4] Practice Bulletin No. 162: Prenatal Diagnostic Testing for Genetic Disorders. Obstet Gynecol, 2016, 127 (5): e108-e122. doi: 10.1097/AOG.0000000000001405
[5] Martins A.T, Francisco C et al. Chorionic villus sampling: 10 years of experience in a university referral center. J Gynecol Obstet Hum Reprod, 2020, 49 (5): 101715. doi: 10.1016/j.jogoh.2020.101715
[6] Srebniak M.I, Weerts M et al. Chorionic villus sampling for rapid confirmation of high-risk NIPT results for trisomy 21, 18, and 13. Prenat Diagn, 2025. 45 (8): 988-993. doi: 10.1002/pd.6837.
[7] Hui L, Ellis K et al. Position statement from the International Society for prenatal diagnosis on the use of non-invasive prenatal testing for the detection of fetal chromosomal conditions in singleton pregnancies. Prenat Diagn, 2023, 43 (7): 814-828. doi: 10.1002/pd.6357
[8] Wang Y, Chen Y et al. Prenatal diagnosis of Duchenne muscular dystrophy revealed a novel mosaic mutation in Dystrophin gene: a case report. BMC Med Genet, 2020, 21 (1): 222. doi: 10.1186/s12881-020-01157-0
[9] Cherian A.G, Kamath V et al. Spectrum of Chromosomal Abnormalities Detected by Conventional Cytogenetic Analysis Following Invasive Prenatal Testing of Fetuses with Abnormal Ultrasound Scans. J Obstet Gynaecol India, 2022, 72 (Suppl 1): 209-216. doi: 10.1007/s13224-022-01626-x