PMID- 30678103 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2076-3271 (Electronic) IS - 2076-3271 (Linking) VI - 7 IP - 2 DP - 2019 Jan 23 TI - Integrated FISH, Karyotyping and aCGH Analyses for Effective Prenatal Diagnosis of Common Aneuploidies and Other Cytogenomic Abnormalities. LID - 10.3390/medsci7020016 [doi] LID - 16 AB - Current prenatal genetic evaluation showed a significantly increase in non-invasive screening and the reduction of invasive diagnostic procedures. To evaluate the diagnostic efficacy on detecting common aneuploidies, structural chromosomal rearrangements, and pathogenic copy number variants (pCNV), we performed a retrospective analysis on a case series initially analyzed by aneuvysion fluorescence in situ hybridization (FISH) and karyotyping then followed by array comparative genomic hybridization (aCGH). Of the 386 cases retrieved from the past decade, common aneuploidies were detected in 137 cases (35.5%), other chromosomal structural rearrangements were detected in four cases (1%), and pCNV were detected in five cases (1.3%). The relative frequencies for common aneuploidies suggested an under detection of sex chromosome aneuploidies. Approximately 9.5% of cases with common aneuploidies showed a mosaic pattern. Inconsistent results between FISH and karyotyping were noted in cases with pseudo-mosaicism introduced by culture artifact or variable cellular proliferation from cells with mosaic karyotypic complements under in vitro cell culture. Based on findings from this case series, cell-based FISH and karyotyping should be performed to detect common aneuploidies, structural chromosomal abnormalities, and mosaic pattern. DNA-based aCGH and reflex FISH should be performed to detect and confirm genomic imbalances and pCNV. Practice points to ensure the diagnostic accuracy and efficacy were summarized. FAU - Chai, Hongyan AU - Chai H AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. hongyan.chai@yale.edu. FAU - DiAdamo, Autumn AU - DiAdamo A AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. autumn.diadamo@yale.edu. FAU - Grommisch, Brittany AU - Grommisch B AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. brittany.grommisch@yale.edu. FAU - Boyle, Jennifer AU - Boyle J AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. jennifer.boyle@yale.edu. FAU - Amato, Katherine AU - Amato K AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. Katherine.wilcox@yale.edu. FAU - Wang, Dongmei AU - Wang D AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. dongmei.wang@yale.edu. FAU - Wen, Jiadi AU - Wen J AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. jiadi.wen@yale.edu. FAU - Li, Peining AU - Li P AD - Laboratory of Clinical Cytogenetics, Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA. peining.li@yale.edu. LA - eng PT - Journal Article DEP - 20190123 PL - Switzerland TA - Med Sci (Basel) JT - Medical sciences (Basel, Switzerland) JID - 101629322 PMC - PMC6410168 OTO - NOTNLM OT - amniotic fluid (AF) OT - aneuploidies OT - array comparative genomic hybridization (aCGH) OT - chorionic villus sampling (CVS) OT - confined placental mosaicism (CPM) OT - fluorescence in situ hybridization (FISH) OT - karyotype OT - pathogenic copy number variants (pCNV) OT - pseudo-mosaicism OT - true fetal mosaicism (TFM) COIS- The authors have no conflict of interest to disclose. EDAT- 2019/01/27 06:00 MHDA- 2019/01/27 06:01 PMCR- 2019/01/23 CRDT- 2019/01/26 06:00 PHST- 2018/12/13 00:00 [received] PHST- 2019/01/10 00:00 [revised] PHST- 2019/01/21 00:00 [accepted] PHST- 2019/01/26 06:00 [entrez] PHST- 2019/01/27 06:00 [pubmed] PHST- 2019/01/27 06:01 [medline] PHST- 2019/01/23 00:00 [pmc-release] AID - medsci7020016 [pii] AID - medsci-07-00016 [pii] AID - 10.3390/medsci7020016 [doi] PST - epublish SO - Med Sci (Basel). 2019 Jan 23;7(2):16. doi: 10.3390/medsci7020016.