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Impact of Oral Sensory Function Including Proprioception on Swallowing in Patients With Stroke
So-Hyun Park1, Dae-Hoon Ham1, Joon-Ho Shin
1From the Department of Rehabilitation Medicine, National Rehabilitation Center, Ministry of Health and Welfare, Gangbuk-gu, Seoul, Republic of Korea.
American Journal of Physical Medicine & Rehabilitation
|February 12, 2025
Summary
Stroke patients often have reduced sensation on one side of their mouth, impacting chewing and swallowing. Oral proprioception deficits were linked to difficulties in mastication and swallowing functions after stroke.
Area of Science:
- Neurology
- Rehabilitation Medicine
- Speech-Language Pathology
Background:
- Stroke frequently causes neurological deficits, including impaired oral sensorimotor functions.
- Understanding the relationship between oral sensory deficits and functional impairments is crucial for rehabilitation.
Purpose of the Study:
- To evaluate oral sensory deficits in stroke patients.
- To determine the correlation between these deficits and mastication and swallowing abilities.
Main Methods:
- Prospective observational study in a stroke rehabilitation unit.
- Oral sensory tests (tactile, proprioception) and functional assessments (VFSS, TOMASS) were performed.
- 36 patients with first-time unilateral stroke lesions were included.
Main Results:
- Patients showed reduced contralesional oral sensation (light touch, two-point discrimination, lip proprioception).
- Oral proprioception negatively correlated with mastication and swallowing.
- Tactile sensation affected swallowing items and the pharyngeal phase.
Conclusions:
- Stroke survivors exhibit contralesional oral sensory impairments.
- These deficits are associated with compromised mastication and swallowing.
- Oral proprioception impacts mastication and swallowing; tactile sensation affects the pharyngeal phase.
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