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Deep Phenotyping on Electronic Health Records Facilitates Genetic Diagnosis by Clinical Exomes.

Abstract：

:Integration of detailed phenotype information with genetic data is well established to facilitate accurate diagnosis of hereditary disorders. As a rich source of phenotype information, electronic health records (EHRs) promise to empower diagnostic variant interpretation. However, how to accurately and efficiently extract phenotypes from heterogeneous EHR narratives remains a challenge. Here, we present EHR-Phenolyzer, a high-throughput EHR framework for extracting and analyzing phenotypes. EHR-Phenolyzer extracts and normalizes Human Phenotype Ontology (HPO) concepts from EHR narratives and then prioritizes genes with causal variants on the basis of the HPO-coded phenotype manifestations. We assessed EHR-Phenolyzer on 28 pediatric individuals with confirmed diagnoses of monogenic diseases and found that the genes with causal variants were ranked among the top 100 genes selected by EHR-Phenolyzer for 16/28 individuals (p < 2.2 × 10-16), supporting the value of phenotype-driven gene prioritization in diagnostic sequence interpretation. To assess the generalizability, we replicated this finding on an independent EHR dataset of ten individuals with a positive diagnosis from a different institution. We then assessed the broader utility by examining two additional EHR datasets, including 31 individuals who were suspected of having a Mendelian disease and underwent different types of genetic testing and 20 individuals with positive diagnoses of specific Mendelian etiologies of chronic kidney disease from exome sequencing. Finally, through several retrospective case studies, we demonstrated how combined analyses of genotype data and deep phenotype data from EHRs can expedite genetic diagnoses. In summary, EHR-Phenolyzer leverages EHR narratives to automate phenotype-driven analysis of clinical exomes or genomes, facilitating the broader implementation of genomic medicine.

journal_name

Am J Hum Genet

journal_title

American journal of human genetics

authors

Son JH,Xie G,Yuan C,Ena L,Li Z,Goldstein A,Huang L,Wang L,Shen F,Liu H,Mehl K,Groopman EE,Marasa M,Kiryluk K,Gharavi AG,Chung WK,Hripcsak G,Friedman C,Weng C,Wang K

doi

10.1016/j.ajhg.2018.05.010

subject

Has Abstract

pub_date

2018-07-05 00:00:00

pages

58-73

issue

eissn

0002-9297

issn

1537-6605

pii

S0002-9297(18)30171-X

journal_volume

103

pub_type

杂志文章

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Deep Phenotyping on Electronic Health Records Facilitates Genetic Diagnosis by Clinical Exomes.