Korean J Obstet Gynecol.
1997 Feb;40(2):286-299.
Antenatal Cytogenetic Analysis Using Cordocentesis
- Affiliations
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- 1Department of Obstetrics and Gynecology, Seoul National University, College of Medicine, Seoul, Korea.
Abstract
- Pure fetal blood was obtained by cordocentesis or cardiocentesis guided by USG in 160 fetuses at 15 to 37 weeks' gestation. Only 1 case failed to obtain cytogenetic result. Cytogenetic analysis of fetal lymphocytes yielded results within 5 days. Chromosomal abnormalities were found in 21 of 159 fetuses(13.2%). Abnormal karyotypes were found in 19 of 118 fetuses(16.1%) with structural malformations~8.6%(7/81) affected by isolated malformations vs. 32.4%(12/37) affected by multiple malformations. There were 12 cases of bradycardia which was the most common nonfatal complication (7.4%). One fetal death was recorded. Pregnancy outcome is as follows: 17 cases of stillbirth, 38 cases of termination of pregnancy, 15 cases of neonatal death, 5 cases of infantile death, 55 cases of living babies, and 29 cases lost to follow-up. It is concluded that rapid karyotyping by cordocentesis is advisable as effective method in fetuses at high risk of a chromosomal aberration, especially in advanced gestations.
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