Research-Based Updates in Swallowing and Communication Dysfunction in Parkinson Disease: Implications for Evaluation and Management

Author:

Broadfoot C. K.1,Abur D.2,Hoffmeister J. D.1,Stepp C. E.234,Ciucci M. R.15

Affiliation:

1. Department of Communication Sciences and Disorders, University of Wisconsin–Madison

2. Department of Speech, Language, and Hearing Sciences, Boston University, MA

3. Department of Biomedical Engineering, Boston University, MA

4. Department of Otolaryngology, Boston University, MA

5. Department of Surgery, Division of Otolaryngology–Head & Neck Surgery, University of Wisconsin–Madison

Abstract

Purpose Individuals with Parkinson disease (PD) present with complex and variable symptoms, with recent findings suggesting that the etiology of PD extends beyond the involvement of just the basal ganglia. These symptoms include significant impairments in the speech and swallowing domains, which can greatly affect quality of life and therefore require therapeutic attention. This research-based update reviews the neurophysiological basis for swallowing and speech changes in PD, the effectiveness of various types of treatments, and the implications for symptom evaluation and management. Conclusion The mechanisms responsible for swallowing and speech symptoms in PD remain largely unknown. Dopaminergic medication and deep brain stimulation do not provide consistent benefits for these symptoms, suggesting a nondopaminergic network is involved. Importantly, evidence suggests that symptoms of dysphagia and hypokinetic dysarthria may be early indications of PD, so it is critical to investigate the cause of these changes.

Publisher

American Speech Language Hearing Association

Subject

General Medicine

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