The utility of exome sequencing for fetal pleural effusions

Angie C. Jelin, Nara Sobreira, Elizabeth Wohler, Benjamin Solomon, Teresa Sparks, Katelynn G. Sagaser, Katherine R. Forster, Jena Miller, P. Dane Witmer, Ada Hamosh, David Valle, Karin Blakemore

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: We sought to evaluate the performance of exome sequencing (ES) in determining an underlying genetic etiology for cases of fetal pleural effusions. Study design: We examined a prospective cohort series of fetal pleural effusions visualized sonographically between 1 April 2016 and 31 August 2017. Fetal pleural effusions attributed to twin sharing, anemia, or structural anomalies were excluded, as were all cases with a genetic diagnosis established by karyotype or chromosomal microarray analysis. The remaining cases with pleural effusions of unclear etiology were offered ES. ES was performed by clinical sequencing and/or sequencing under the Baylor-Hopkins Center for Mendelian Genomics' (BHCMG) research platform. All cases were evaluated for novel genes or phenotypic expansion of disease-causing genes. Results: ES was performed on six probands affected by pleural effusions. A pathogenic variant was identified in one case (16.7%). Four additional cases had variants of uncertain significance (VUS) in candidate genes of pathological interest. Neither clinical nor candidate genes were evident in the final case. Conclusion: ES should be considered in the evaluation of prenatally detected idiopathic pleural effusions when other diagnostic workup for a genetic etiology has failed.

Original languageEnglish (US)
Pages (from-to)590-595
Number of pages6
JournalPrenatal Diagnosis
Volume40
Issue number5
DOIs
StatePublished - Apr 1 2020

ASJC Scopus subject areas

  • Obstetrics and Gynecology
  • Genetics(clinical)

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