Abstract
Lin C-W, Chang Y-C, Chen W-S, Chang K, Chang H-Y, Wang T-G. Prolonged swallowing time
in dysphagic Parkinsonism patients with aspiration pneumonia.
Objective
To quantitatively measure which dysphagic features, including swallowing time and
hyoid bone displacement, would be associated with increased risk of aspiration pneumonia
in dysphagic Parkinsonism patients.
Design
Clinical survey.
Setting
Tertiary care center.
Participants
Patients with Parkinsonism and dysphagia (N=25), referred for videofluoroscopic swallowing
study, were recruited by retrospective review of medical records. They were divided
into 2 groups according to the history of aspiration pneumonia.
Interventions
Not applicable.
Main Outcome Measure
Swallowing time including onset of pharyngeal swallowing, oral transit time and pharyngeal
transit time, and maximum hyoid bone displacement including total, horizontal, and
vertical displacement during swallowing in thin and thick bariums were recorded.
Results
Patients with history of aspiration pneumonia had significantly longer pharyngeal
transit time (4.14 vs 2.31s, P=.038) and onset of pharyngeal swallowing (2.16 vs 1.04s, P=.031) than those without, when swallowing thin barium. Patients with aspiration pneumonia
also had significantly longer swallowing time when swallowing thick barium (oral transit
time: 7.14 vs 2.33s, P=.018; pharyngeal transit time: 6.39 vs 1.23s, P=.004; onset of pharyngeal swallowing: 5.11 vs .31s, P=.006). There was no significant difference in hyoid bone displacement between the
2 groups.
Conclusions
Patients with Parkinsonism dysphagia and aspiration pneumonia had longer swallowing
time than those without, but there was no difference in displacement of hyoid bone.
Key Words
List of Abbreviations:
OPS (onset of pharyngeal swallowing), OTT (oral transit time), PTT (pharyngeal transit time), VFSS (videofluoroscopic swallowing study)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: July 30, 2012
Footnotes
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit on the authors or on any organization with which the authors are associated.
Reprints are not available from the author.
In-press corrected proof published online on Sep 19, 2012, at www.archives-pmr.org.
Identification
Copyright
© 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.
