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Speech disorders in Parkinson's disease: pathophysiology, medical management and surgical approaches

    Khashayar Dashtipour

    Department of Neurology, Loma Linda University School of Medicine, Loma Linda, CA, USA

    ,
    Ali Tafreshi

    *Author for correspondence:

    E-mail Address: kdashtipour@llu.edu

    Department of Neurology, Loma Linda University School of Medicine, Loma Linda, CA, USA

    Keck School of Medicine, University of Southern California, Los Angeles, CA, USA

    ,
    Jessica Lee

    Department of Neurology, Loma Linda University School of Medicine, Loma Linda, CA, USA

    &
    Brianna Crawley

    Department of Otolaryngology, Loma Linda University School of Medicine, Loma Linda, CA, USA

    Published Online:https://doi.org/10.2217/nmt-2018-0021

    The prevalence of speech disorders among individuals with Parkinson's disease (PD) has been reported to be as high as 89%. Speech impairment in PD results from a combination of motor and nonmotor deficits. The production of speech depends upon the coordination of various motor activities: respiration, phonation, articulation, resonance and prosody. A speech disorder is defined as impairment in any of its inter-related components. Despite the high prevalence of speech disorders in PD, only 3–4% receive speech treatment. Treatment modalities include pharmacological intervention, speech therapy, surgery, deep brain stimulation and vocal fold augmentation. Although management of Parkinsonian dysarthria is clinically challenging, speech treatment in PD should be part of a multidisciplinary approach to patient care in this disease.

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