A large multicenter study of pediatric myotonic dystrophy type 1 for evidence-based management
- PMID: 30659139
- DOI: 10.1212/WNL.0000000000006948
A large multicenter study of pediatric myotonic dystrophy type 1 for evidence-based management
Erratum in
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A large multicenter study of pediatric myotonic dystrophy type 1 for evidence-based management.Neurology. 2020 Mar 3;94(9):414. doi: 10.1212/WNL.0000000000008819. Epub 2020 Feb 6. Neurology. 2020. PMID: 32029546 No abstract available.
Abstract
Objective: To genotypically and phenotypically characterize a large pediatric myotonic dystrophy type 1 (DM1) cohort to provide a solid frame of data for future evidence-based health management.
Methods: Among the 2,697 patients with genetically confirmed DM1 included in the French DM-Scope registry, children were enrolled between January 2010 and February 2016 from 24 centers. Comprehensive cross-sectional analysis of most relevant qualitative and quantitative variables was performed.
Results: We studied 314 children (52% females, with 55% congenital, 31% infantile, 14% juvenile form). The age at inclusion was inversely correlated with the CTG repeat length. The paternal transmission rate was higher than expected, especially in the congenital form (13%). A continuum of highly prevalent neurodevelopmental alterations was observed, including cognitive slowing (83%), attention deficit (64%), written language (64%), and spoken language (63%) disorders. Five percent exhibited autism spectrum disorders. Overall, musculoskeletal impairment was mild. Despite low prevalence, cardiorespiratory impairment could be life-threatening, and frequently occurred early in the first decade (25.9%). Gastrointestinal symptoms (27%) and cataracts (7%) were more frequent than expected, while endocrine or metabolic disorders were scarce.
Conclusions: The pedDM-Scope study details the main genotype and phenotype characteristics of the 3 DM1 pediatric subgroups. It highlights striking profiles that could be useful in health care management (including transition into adulthood) and health policy planning.
© 2019 American Academy of Neurology.
Comment in
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Reader response: A large multicenter study of pediatric myotonic dystrophy type 1 for evidence-based management.Neurology. 2020 Jan 21;94(3):145-146. doi: 10.1212/WNL.0000000000008824. Neurology. 2020. PMID: 31959687 No abstract available.
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Author response: A large multicenter study of pediatric myotonic dystrophy type 1 for evidence-based management.Neurology. 2020 Jan 21;94(3):146. doi: 10.1212/WNL.0000000000008825. Neurology. 2020. PMID: 31959688 No abstract available.
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