Large gene panel sequencing in clinical diagnostics—results from 501 consecutive cases
Clinical genetics, 2018•Wiley Online Library
Background In addition to whole exomes, large gene panels of clinically associated genes
are used as high‐throughput sequencing tests in many clinical centers, but their clinical
utility has been much less investigated. Materials and Methods Here we report the results of
the 501 first unselected cases for whom TruSight One panel (Illumina Inc., San Diego,
California) was sequenced as a clinical diagnostic test for a variety of indications in our
department. The analysis was restricted to virtual subpanels based on referral forms, where …
are used as high‐throughput sequencing tests in many clinical centers, but their clinical
utility has been much less investigated. Materials and Methods Here we report the results of
the 501 first unselected cases for whom TruSight One panel (Illumina Inc., San Diego,
California) was sequenced as a clinical diagnostic test for a variety of indications in our
department. The analysis was restricted to virtual subpanels based on referral forms, where …
Background
In addition to whole exomes, large gene panels of clinically associated genes are used as high‐throughput sequencing tests in many clinical centers, but their clinical utility has been much less investigated.
Materials and Methods
Here we report the results of the 501 first unselected cases for whom TruSight One panel (Illumina Inc., San Diego, California) was sequenced as a clinical diagnostic test for a variety of indications in our department. The analysis was restricted to virtual subpanels based on referral forms, where doctors were asked to list candidate genes or select one from predefined larger panels.
Results
A probable or definite pathogenic finding was reported in 26.3% of cases. In 238 samples for whom 1 to 9 genes were requested for analysis, the diagnostic yield was significantly higher compared to other 263 cases for whom larger subpanels were requested (31.5% vs 21.7%, respectively, P = .016). Detected mutations included single nucleotide variants, small insertions and deletions, and larger copy number variants. Out of 157 reported mutations, 67 were previously undescribed.
Conclusion
The clinical utility of large gene panel sequencing in the context of other genetic diagnostic tests is discussed in detail.
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