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    Ann Neurol. 2010 Dec;68(6):951-5. doi: 10.1002/ana.22154.

    Rett syndrome diagnostic criteria: lessons from the Natural History Study.

    Source

    Department of Pediatric (Neurology) and Civitan International Research Center, University of Alabama at Birmingham, Birmingham, AL,USA. apercy@uab.edu

    Abstract

    Analysis of 819 participants enrolled in the Rett syndrome (RTT) Natural History Study validates recently revised diagnostic criteria. 765 females fulfilled 2002 consensus criteria for classic (653/85.4%) or variant (112/14.6%) RTT. All participants classified as classic RTT fulfilled each revised main criterion; supportive criteria were not uniformly present. All variant RTT participants met at least 3 of 6 main criteria in the 2002, 2 of 4 main criteria in the current format, and 5 of 11 supportive criteria in both. This analysis underscores the critical role of main criteria for classic RTT; variant RTT requires both main and supportive criteria.

    PMID:
    21104896
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC3021984
    Free PMC Article

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