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[Chromosomal aberrations in prenatal diagnosis--results of karyotyping 2,000 samples of amniotic fluid]
J Horácek1, V Becvárová, K Svĕtnicová
1Ustav lékarské genetiky IPVZ, Praha, Krc.
Ceska Gynekologie
|June 1, 1997
Abstract:
The frequencies of different types of chromosomal abnormalities are shown in a study performed during 1989-1996. 32 pathological karyotypes were found, i.e. 1.6%. The ratio of numerical/structural abnormalities is 1.67. The number of de novo or unexpected structural abnormalities is 67% from all structural ones in this study. This strongly supports the need of complete cytogenetic analysis.