Speech and language in a genotyped cohort of individuals with Kabuki syndrome.

TitleSpeech and language in a genotyped cohort of individuals with Kabuki syndrome.
Publication TypeJournal Article
Year of Publication2015
AuthorsMorgan AT, Mei C, Da Costa A, Fifer J, Lederer D, Benoit V, McMillin MJ, Buckingham KJ, Bamshad MJ, Pope K, White SM
JournalAm J Med Genet A
Date Published2015 Mar 8
ISSN1552-4833
Abstract

Speech and language deficits are commonly associated with Kabuki syndrome. Yet little is known regarding the specific symptomatology of these disorders, preventing use of targeted treatment programs. Here we detail speech and language in 16 individuals with Kabuki syndrome (thirteen with KMT2D mutations, one with a KDM6A mutation, and two mutation-negative cases), aged 4-21 years. The most striking speech deficit was dysarthria, characterised by imprecise consonants, harsh vocal quality, hypernasality, reduced rate and stress, and distorted pitch. Oromotor functioning was also impaired. Delayed, rather than disordered, articulation and phonology was common. Both receptive and expressive language abilities were reduced in the majority and deficits were noted across all language sub-domains (i.e., semantics, syntax, morphology, and pragmatics) with no clear differentiation or specific language profile. Individuals with Kabuki syndrome present with a heterogenous pattern of oromotor, speech, and language deficits. This variability fits with the multisystem nature of the disorder, which may encompass neurological, orofacial structural, hearing, and cognitive deficits, any or all of which may contribute to speech or language impairment. Our results suggest that all individuals with Kabuki syndrome have some level of communication deficit, warranting speech pathology involvement in all cases. © 2015 Wiley Periodicals, Inc.

DOI10.1002/ajmg.a.37026
Alternate JournalAm. J. Med. Genet. A
Citation Key1577
PubMed ID25755104