Dysphagia

, Volume 23, Issue 1, pp 26–32

Effects of Bolus Consistency on Timing and Safety of Swallow in Patients with Parkinson’s Disease

  • Michelle S. Troche
  • Christine M. Sapienza
  • John C. Rosenbek
Article

Abstract

Aspiration pneumonia is the leading cause of death in Parkinson’s disease (PD) patients. In clinical practice, the videofluoroscopic examination (VFE) is the most common method for evaluation of swallowing disorders. One of the variables manipulated during the VFE is consistency of the bolus. The results of this examination greatly influence the recommendations made by speech-language pathologists regarding swallow therapy and/or intervention. The primary aim of this study was to investigate the effects of bolus consistency on penetration-aspiration (P-A) score and timing of swallow of persons with PD. The videoradiographic images of ten participants with PD swallowing six thin and six pudding-thick boluses were analyzed. Swallow timing and P-A were measured. (i.e., oral transit time, pharyngeal transit time, number of tongue pumps, and P-A score). The results demonstrated various significant differences and relationships among the dependent variables. Implications for further research and clinical practice are discussed.

Keywords

Parkinson’s disease Dysphagia Bolus consistency Deglutition Deglutition disorders 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Michelle S. Troche
    • 1
    • 2
  • Christine M. Sapienza
    • 1
    • 2
  • John C. Rosenbek
    • 1
    • 2
  1. 1.Department of Communication Sciences and DisordersUniversity of FloridaGainesvilleUSA
  2. 2.Malcom Randall Veterans Affairs Medical CenterGainesvilleUSA

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