Title
Documentation in pharmacovigilance: using an ontology to extend and normalize Pubmed queries.
Abstract
Objectives: To assess and understand adverse drug reactions (ADRs), a systematic review of reference databases like Pubmed is a necessary and mandatory step in Pharmacovigilance. In order to assist pharmacovigilance team with a computerized tool, we performed a comparative study of 4 different approaches to query Pubmed through ADR-drug terms. The aim of this study is to assess how an ontology of adverse effects, used to normalize and extend queries, could improve this search. Material and Method: The ontological resource OntoEIM contains 58,000 classes and integrates MedDRA terminology. The entry point is a ADR-Drug term and the four methods are (i) a direct search on Pubmed (ii) a search with a normalized query enhanced with domain-specific Mesh Heading criteria, (iii) a search with the same elaborated query extended to the MeSH sub-hierarchy of the adverse effect entry and (iv) a search with a set of MedDRA terms grouped by subsomption in the OntoEIM ontology. For each of the 16 queries performed and analysed, relevant publications are selected "manually" by two pharmacovigilant experts. Results: The recall is respectively of 63%, 50%, 67% and 74%, the precision of 13%, 26%, 29% and 4%. The best recall is provided by the ontology-based method, for 4 cases out of 16 this method returns relevant publications when the others return no results. Conclusion: Results show that an ontology-based search tool improves the recall performance, but other tools and methods are needed to raise the precision.
Year
DOI
Venue
2010
10.3233/978-1-60750-588-4-518
Studies in Health Technology and Informatics
Keywords
Field
DocType
Adverse drug reaction reporting,Adverse drug reaction,Information retrieval,Databases bibliographic,PubMed,Ontology
Ontology,Data mining,MedDRA,Normalization (statistics),Information retrieval,Terminology,Computer science,Entry point,Pharmacovigilance,Documentation,Recall
Conference
Volume
Issue
ISSN
160
Pt 1
0926-9630
Citations 
PageRank 
References 
4
0.52
0
Authors
8
Name
Order
Citations
PageRank
Denis Delamarre151.63
Agnès Lillo-Le Louët251.22
Laetitia Guillot360.93
Anne Jamet440.52
Eric Sadou540.52
Theo Ouazine640.52
Burgun A714114.77
Marie-Christine Jaulent837568.72