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Large-scale evaluation of outcomes after a genetic diagnosis in children with severe developmental disorders

  • Harriet Copeland
  • , Karen J. Low
  • , Sarah L. Wynn
  • , Ayesha Ahmed
  • , Victoria Arthur
  • , Meena Balasubramanian
  • , Katya Bennett
  • , Jonathan Berg
  • , Marta Bertoli
  • , Lisa Bryson
  • , Catrin Bucknall
  • , Jamie Campbell
  • , Kate Chandler
  • , Jaynee Chauhan
  • , Amy Clarkson
  • , Rachel Coles
  • , Hector Conti
  • , Philandra Costello
  • , Tessa Coupar
  • , Amy Craig
  • John Dean, Amy Dillon, Abhijit Dixit, Kathryn Drew, Jacqueline Eason, Francesca Forzano, Nicola Foulds, Alice Gardham, Neeti Ghali, Andrew Green, William Hanna, Rachel Harrison, Mairead Hegarty, Jenny Higgs, Muriel Holder, Rachel Irving, Vani Jain, Katie Johnson, Rachel Jolley, Wendy D. Jones, Gabriela Jones, Shelagh Joss, Ruta Kalinauskiene, Farah Kanani, Karl Kavanagh, Mahmudur Khan, Naz Khan, Emma Kivuva, Nayana Lahiri, Neeta Lakhani, Caroline F. Wright (Lead / Corresponding author),

Research output: Contribution to journalArticlepeer-review

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Abstract

Purpose: We sought to evaluate outcomes for clinical management after a genetic diagnosis from the Deciphering Developmental Disorders study. Methods: Individuals in the Deciphering Developmental Disorders study who had a pathogenic/likely pathogenic genotype in the DECIPHER database were selected for inclusion (n = 5010). Clinical notes from regional clinical genetics services notes were reviewed to assess predefined clinical outcomes relating to interventions, prenatal choices, and information provision. Results: Outcomes were recorded for 4237 diagnosed probands (85% of those eligible) from all 24 recruiting centers across the United Kingdom and Ireland. Clinical management was reported to have changed in 28% of affected individuals. Where individual-level interventions were recorded, additional diagnostic or screening tests were started in 903 (21%) probands through referral to a range of different clinical specialties, and stopped or avoided in a further 26 (0.6%). Disease-specific treatment was started in 85 (2%) probands, including seizure-control medications and dietary supplements, and contra-indicated medications were stopped or avoided in a further 20 (0.5%). The option of prenatal/preimplantation genetic testing was discussed with 1204 (28%) families, despite the relatively advanced age of the parents at the time of diagnosis. Importantly, condition-specific information or literature was given to 3214 (76%) families, and 880 (21%) were involved in family support groups. In the most common condition (KBG syndrome; 79 [2%] probands), clinical interventions only partially reflected the temporal development of phenotypes, highlighting the importance of consensus management guidelines and patient support groups. Conclusion: Our results underscore the importance of achieving a clinico-molecular diagnosis to ensure timely onward referral of patients, enabling appropriate care and anticipatory surveillance, and for accessing relevant patient support groups.

Original languageEnglish
Article number101864
Number of pages11
JournalGenetics in Medicine Open
Volume2
Early online date27 Dec 2024
DOIs
Publication statusPublished - 2024

Keywords

  • Clinical audit
  • Developmental disorders
  • Diagnosis
  • Genomic medicine
  • Treatment

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Molecular Biology
  • Genetics
  • Cell Biology

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