Offering complex genomic screening in acute pediatric settings: Family decision-making and outcomes

Melissa Martyn1, Ling Lee2, Alli Jan3

  • 1Murdoch Children's Research Institute, Parkville, VIC, Australia; Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, VIC, Australia.

Insights

Delaying genomic screening after diagnosis improves family understanding and recall. Most families found decisions easier and accepted a delayed offer, suggesting this approach should be widely trialed.

Area of Science:

  • Genomic Medicine
  • Clinical Genetics
  • Bioethics

Background:

  • Genomic sequencing in pediatric acute care presents complex decisions for families during high-stress periods.
  • Current practices offer ultrarapid genomic sequencing concurrently with diagnostic testing, potentially overwhelming families.

Purpose of the Study:

  • To evaluate the uptake, understanding, and service delivery preferences of families offered genomic screening after diagnostic testing completion.
  • To reduce decision-making complexity for families and clinicians in pediatric acute care settings.

Main Methods:

  • A cohort of 235 families undergoing ultrarapid diagnostic genomic sequencing were offered subsequent genomic screening (pediatric-onset, adult-onset, couple carrier).
  • Data were collected via surveys at three time points and inductive content analysis of genetic counseling transcripts.
  • Uptake, decision-making ease, understanding, and recall of results were assessed.

Main Results:

  • 119 families (51%) attended genetic counseling, and 115 (49%) accepted genomic screening.
  • Couple carrier screening decisions were perceived as easier than pediatric or adult-onset screening.
  • Families demonstrated accurate recall of newly detected pathogenic variants one month later, and 78% found a delayed offer acceptable.

Conclusions:

  • Separating genomic screening from the acute diagnostic period is feasible and supported by families.
  • Families exhibit good knowledge and recall when genomic screening is offered post-diagnosis.
  • Delayed genomic screening should be trialed more broadly in clinical practice.
Abstract

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