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Dufke, Andreas; Hoopmann, Markus; Waldmüller, Stephan; Prodan, Natalia Carmen; Beck‐Wödl, Stefanie; Grasshoff, Ute; Heinrich, Tilman; Riess, Angelika; Kehrer, Martin; Falb, Ruth J.; Liebmann, Alexandra; Roggia, Cristiana; Stampfer, Miriam; Schadeck, Malou; Müller, Amelie J.; Grimmel, Mona; Stöbe, Petra; Gauck, Darja; Buchert‐Lo, Rebecca; Baumann, Sarah; Schäferhoff, Karin; Bertrand, Miriam; Menden, Benita; Sturm, Marc; Schütz, Leon; Riess, Olaf; Ossowski, Stephan; Haack, Tobias B.; Kagan, Karl Oliver
Prenatal diagnosis, June 2022, Letnik: 42, Številka: 7Journal Article
Objectives To examine the diagnostic yield of trio exome sequencing in fetuses with multiple structural defects with no pathogenic findings in cytogenetic and microarray analyses. Methods We recruited 51 fetuses with two or more defects, non‐immune fetal hydrops or fetal akinesia deformation syndrome|or fetal akinesia deformation sequence (FADS). Trio exome sequencing was performed on DNA from chorionic villi samples and parental blood. Detection of genomic variation and prioritization of clinically relevant variants was performed according to in‐house standard operating procedures. Results Median maternal and gestational age was 32.0 years and 21.0 weeks, respectively. Forty‐three (84.3%) fetuses had two or more affected organ systems. The remaining fetuses had isolated fetal hydrops or FADS. In total, the exome analysis established the genetic cause for the clinical abnormalities in 22 (43.1%, 95% CI 29.4%–57.8%) pregnancies. Conclusions In fetuses with multiple defects, hydrops or FADS and normal standard genetic results, trio exome sequencing has the potential to identify genetic anomalies in more than 40% of cases. Key points What's already known about this topic? Genome‐wide sequencing for unspecific heterogeneous syndromic and non‐syndromic congenital conditions increases the diagnostic yield compared with standard genetic testing in both the pre‐ and postnatal settings. The diagnostic yield prenatally varies depending on selection criteria and number of anomalies present. What does this study add? Trio exome sequencing should be considered for fetuses with normal cytogenetic and micro‐array analysis and two or more organ defects, fetal hydrops or fetal akinesia syndromes. Selection of cases for exome sequencing should be based on expert prenatal imaging.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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