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When should we offer antenatal sequencing for urinary tract malformations? A systematic review, cohort study and meta-analysis

  • Sarah Sonner
  • , Kelly Reilly
  • , Adrian S. Woolf
  • , Natalie Chandler
  • , Mark D. Kilby
  • , Eamonn R. Maher
  • , Cheryl Flanagan
  • , Amy Jayne McKnight
  • , Fionnuala Mone
  • Queens University Belfast
  • University of Manchester
  • Great Ormond Street Hospital NHS Foundation Trust
  • Fetal Medicine Centre, Birmingham Women’s NHS Foundation Trust, Birmingham B15 2TT, UK
  • Catholic University of Sacred Heart, Institute of General Pathology Gemelli Hospital, 00168 Roma, Italy

Research output: Contribution to journalReview articlepeer-review

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Abstract

OBJECTIVE: Determine the incremental yield of prenatal exome sequencing (PES) over chromosome microarray (CMA) and/or karyotype for urinary tract malformations (UTMs).

METHOD: A prospective cohort study encompassing data from the English Genomic Medicine Service North Thames Laboratory Hub for fetuses with bilateral echogenic kidneys (BEKs) was combined with data from a systematic review. MEDLINE, EMBASE, Web of Science, MedRxiv and GreyLit were searched from 01/2010-02/2023 for studies reporting on the yield of PES over CMA or karyotype in fetuses with UTMs. Pooled incremental yield was determined using a random effects model. PROSPERO CRD42023364544.

RESULTS: Fourteen studies (410 cases) were included. The incremental yield for multisystem UTMs, any isolated UTMs, and BEKs was 31% [95% CI, 18%-46%; I2 = 78%], 16% [95% CI, 6%-26%; I2 = 80%] and 51% [95% CI, 27%-75%; I2 = 34%]. The most common clinical diseases and syndromes identified, based on the variant genes detected, were Bardet-Biedl syndrome (BBS genes), dominant and recessive polycystic kidney diseases (PKD1, PKD2 and PKHD1) and renal cysts and diabetes syndrome (HNF1B).

CONCLUSION: There was a notable incremental genetic diagnostic yield when PES was applied to multisystem UTMs and BEKs. There was a modest incremental yield when this technique was used for UTMs other than BEKs.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalPrenatal diagnosis
Volume44
Issue number2
Early online date6 Dec 2023
DOIs
Publication statusPublished - Feb 2024

Bibliographical note

Copyright © 2023 The Authors. Prenatal Diagnosis published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

Funding

The authors thank the Rapid fetal exomes sequencing, Bioinformatics team and the Translational research teams at North Thames Genomic Laboratory Hub. The work described here was partially funded by the NIHR Biomedical Research Centre at the Great Ormond Street Hospital. ASW acknowledges support from the MCR‐NIHR UK Rare Disease Research Platform MR/Y008340/1. ERM acknowledges support from the NIHR Cambridge Biomedical Research Centre (NIHR203312). SS and FM acknowledge the funding provided by the Department for the Economy, Northern Ireland.

FundersFunder number
MCR‐NIHR UK Rare Disease Research PlatformMR/Y008340/1
Manchester Biomedical Research Centre
Department for the Economy
NIHR Cambridge Biomedical Research CentreNIHR203312

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Keywords

    • Cohort Studies
    • Female
    • Humans
    • Karyotyping
    • Kidney/diagnostic imaging
    • Polycystic Kidney Diseases
    • Pregnancy
    • Prospective Studies

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