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Preselection of cases through expert clinical and radiological review significantly increases mutation detection rate in multiple epiphyseal dysplasia

Lookup NU author(s): Dr Michael Wright

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Abstract

Skeletal dysplasias are difficult to diagnose for the nonexpert. In a previous study of patients with multiple epiphyseal dysplasia (MED), we identified cartilage oligomeric matrix protein (COMP) mutations in only 36% of cases and suspected that the low-mutation detection rate was partially due to misdiagnosis. We therefore instituted a clinical-radiographic review system, whereby all cases were evaluated by a panel of skeletal dysplasia experts (European Skeletal Dysplasia Network). Only those patients in whom the diagnosis of MED was confirmed by the panel were screened for mutations. Under this regimen the mutation detection rate increased to 81%. When clinical-radiological diagnostic criteria were relaxed the mutation rate dropped to 67%. We conclude that expert clinical-radiological review can significantly enhance mutation detection rates and should be part of any diagnostic mutation screening protocol for skeletal dysplasias.

Publication metadata

Author(s): Zankl A, Jackson GC, Crettol LM, Taylor J, Elles R, Mortier GR, Spranger J, Zabel B, Unger S, Le Merrer M, Cormier-Daire V, Hall CM, Wright MJ, Bonafe L, Superti-Furga A, Briggs MD

Publication type: Article

Publication status: Published

Journal: European Journal of Human Genetics

Year: 2007

Volume: 15

Issue: 2

Pages: 150-154

ISSN (print): 1018-4813

ISSN (electronic): 1476-5438

Publisher: Nature Publishing Group

URL: http://dx.doi.org/10.1038/sj.ejhg.5201744

DOI: 10.1038/sj.ejhg.5201744

PubMed id: 17133256

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