PMID- 10646809 OWN - NLM STAT- MEDLINE DCOM- 20000204 LR - 20061115 IS - 0001-6349 (Print) IS - 0001-6349 (Linking) VI - 79 IP - 1 DP - 2000 Jan TI - Rapid prenatal diagnosis of chromosome aneuploidies by interphase fluorescence in situ hybridization: a one-year clinical experience with high-risk and urgent fetal and postnatal samples. PG - 8-14 AB - OBJECTIVES: To evaluate the clinical utility of rapid prenatal and postnatal detection of common chromosome aneuploidies by interphase fluorescence in situ hybridization (FISH) analysis with DNA probes. DESIGN: Four hundred and seventy-seven high-risk and/or urgent amniotic fluid, chorionic villus and fetal and postnatal blood samples were prospectively examined by FISH with probes specific for chromosomes 13, 18, 21, X, and Y and results were reported within 48 hours. All FISH results were followed by conventional chromosome analysis, if possible. SETTING: Cytogenetic service laboratory at the tertiary referral center, Rigshospitalet in Copenhagen. MAIN OUTCOME MEASURES: The fraction of clinically significant chromosome aneuploidies that was detected by FISH analysis, and the fraction of terminations that was based on FISH and ultrasound results rather than on conventional cytogenetic results. RESULTS: The FISH assay detected 76% of the clinically significant chromosome abnormalities as determined by subsequent cytogenetic analysis. Seventy-two percent of the terminations of the chromosomally abnormal pregnancies were based on FISH and ultrasound results rather than on conventional cytogenetic results. CONCLUSION: FISH analysis is a clinically useful adjunctive tool to conventional pre- and postnatal cytogenetic analysis. The assay rapidly detects the majority of clinically significant chromosome abnormalities, thus facilitating difficult pre- and postnatal clinical decisions. FAU - Bryndorf, T AU - Bryndorf T AD - Department of Clinical Genetics, The Juliane Marie Center, Rigshospitalet, University of Copenhagen, Denmark. FAU - Lundsteen, C AU - Lundsteen C FAU - Lamb, A AU - Lamb A FAU - Christensen, B AU - Christensen B FAU - Philip, J AU - Philip J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Acta Obstet Gynecol Scand JT - Acta obstetricia et gynecologica Scandinavica JID - 0370343 RN - 0 (DNA Probes) SB - IM MH - Adult MH - Amniotic Fluid/cytology MH - *Aneuploidy MH - Chorionic Villi Sampling MH - Chromosome Aberrations/*diagnosis MH - Chromosome Disorders MH - DNA Probes MH - Female MH - Fetal Blood/cytology MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Interphase MH - Karyotyping MH - Male MH - Pregnancy MH - *Prenatal Diagnosis MH - Prospective Studies MH - Risk Factors MH - Sensitivity and Specificity EDAT- 2000/01/26 00:00 MHDA- 2000/01/26 00:01 CRDT- 2000/01/26 00:00 PHST- 2000/01/26 00:00 [pubmed] PHST- 2000/01/26 00:01 [medline] PHST- 2000/01/26 00:00 [entrez] PST - ppublish SO - Acta Obstet Gynecol Scand. 2000 Jan;79(1):8-14.