Journal
MOLECULAR GENETICS & GENOMIC MEDICINE
Volume 6, Issue 4, Pages 592-600Publisher
WILEY
DOI: 10.1002/mgg3.410
Keywords
genetic counselors; genome-wide sequencing; health services implementation; intellectual disability
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Funding
- Mining for Miracles - BC Children's Hospital Foundation
- Genome British Columbia
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BackgroundAccess to clinical diagnostic genome-wide sequencing (GWS; exome or whole genome sequencing) is limited in British Columbia. The establishment of a translational research initiative (CAUSES) to provide diagnostic genome-wide sequencing for 500 children necessitated the development of a genomic consultation service, a clinical service established to provide consultation for physicians considering GWS for their pediatric patients throughout British Columbia. The Genomic Consultation Service provides patient-specific genomic advice that may include: GWS, multi-gene panel, single gene test, referral to medical genetics for clinical evaluation, or no genetic testing. Here, we describe and evaluate this service. MethodsWe analyzed referral patterns, patient demographics, clinical indications, and genomic advice provided during the first year of this service. Comparison of outcomes from the first 6months versus the last 6months was performed. ResultsA total of 407 referrals (238 males and 169 females [p=.0006]) were processed in the first year. Only children were eligible for referral and average patient age was 8years. Medical genetics was the most frequent referring discipline, followed by biochemical disease and pediatric neurology, respectively. Most patients (68%) had syndromic intellectual disability. There was a significant difference in the frequency of referrals not appropriate for GWS in the first versus the second 6months of the service (75/220 vs. 42/187; p=.01) suggesting increasing awareness of testing criteria by referring physicians. ConclusionThis triage service is utilized throughout the province and appears to be an important factor in the high diagnostic rate (>40%) achieved in our GWS program.
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