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Korean Journal of Obstetrics & Gynecology 1998;41(12):2997-3000.
Published online January 1, 2001.
Prenatal Cytogenetic Diagnosis with Fetal Ascitic Fluid as a Rapid Chromosome Analysis.
Jeong In Yang, Kie Suk Oh, Haeng Soo Kim, Eun Joo Ahn, Jae Sun Shim
Abstract
OBJECTIVE
The goal of this study is to determine the efficacy of rapid karyotyping from fetal ascitic fluid. METHODS: In three cases of isolated fetal ascites diagnosed by prenatal ultrasonography, ultrasound guided fetal paracentesis and amniocentesis were performed and successfully obtained. Fetal karyotyping in each case at 29, 30 and 32 weeks gestation using modified lymphocyte culture method was conducted. RESULTS: The chromosomal analysis was successful within 72 hours and abnormalities were detected in two cases and revealed trisomy 21 in each case. Our study demonstrated that the majority distribution of white blood cells was lymphocytes which ranged from 2.1 * 10(6) cells/ml to 3.7 * 10(6) cells/ml and the cell density for culture was at least than 0.35 * 10(6) cells/ml. CONCLUSION: The use of ascitic fluid as a cell source to achieve rapid fetal karyotyping can be valuable when cordocenteis or amniocentesis would be technically more difficult, or when rapid result is required for planning of perinatal management at late second or third trimester gestational age.
Key Words: Fetal ascites, Rapid fetal karyotyping


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