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[Quick prenatal diagnosis using FISH in the analysis of non-cultured amniotic fluid cells].

We report our experience with fluorescence in situ hybridization (FISH) on uncultured amniocytes and standard cytogenetic analysis. The method have been suggested to 259 patients and performed for 199 amniotic fluid samples. Commercially available chromosome-specific DNA probes (Aneurysm) for chromosomes 13, 18, 21, X and Y were used. All full trisomy 18, 21 and monosomy X were detected by FISH analysis with exception of one case of mosaic monosomy X. No false-positive result was observed. The efficiency, practicability and acceptability of the FISH diagnosis are discussed.