Tongue Pressure Measurement and Videofluoroscopic Study of Swallowing in Patients with Parkinson’s Disease
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This study investigated the relationship between tongue pressure during swallowing and dysphagia in patients with Parkinson’s disease (PD). A total of 24 patients with PD (12 men and 12 women, mean age 70.4 years) were studied. Their mean Hoehn and Yahr scale was 3.0 ± 1.3 (range 1–5). All participants underwent tongue pressure measurement and videofluorography during swallowing. Tongue pressure when swallowing 5 mL of barium on videofluorography was measured using a sensor sheet with five sensors. Based on the findings of videofluorography, the patients were divided into two groups: dysphagic PD group (n = 9) and non-dysphagic PD group (n = 15). The maximal magnitude (kPa), duration (s), time to peak pressure (s), and pressure gradient (kPa/s) of tongue pressure were analyzed for each part. For duration, time to peak pressure, and pressure gradient, similar values were calculated from the total waveform. There was no significant difference in maximal tongue pressure between the groups. The dysphagic PD group had prolonged duration of tongue pressure and time to peak pressure and a reduced pressure gradient compared with the non-dysphagic PD group. These results indicate that there is a clear difference in the temporal aspects of tongue pressure between the non-dysphagic and dysphagic PD patients. These differences provide the characteristics of tongue movement during swallowing in PD patients with dysphagia, which may be useful for the diagnosis and treatment of dysphagia.
KeywordsDeglutition Deglutition disorders Parkinson’s disease Tongue pressure
The authors gratefully acknowledge the members of the division of Neurology, Department of Internal Medicine, Hyogo College of Medicine for their assistance and suggestions.
This research was supported by JSPS KAKENHI Grant-in-Aid for Encouragement of Scientists (Number JP15H00635).
Compliance with Ethical Standards
Conflict of interest
None of the authors have any commercial or financial involvement in connection with this study that represent or appear to represent any conflicts of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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