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Swallowing Function and Kinematics in Stroke Patients with Tracheostomies
Han Gil Seo1, Jeong-Gil Kim1, Hyung Seok Nam2
1Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea.
Dysphagia
|December 26, 2016
Summary
Stroke patients with tracheostomies exhibit poorer swallowing function and kinematics compared to those without. This highlights the impact of tracheostomy on swallowing in stroke survivors, necessitating further research.
Area of Science:
- Neurology
- Swallowing Disorders
- Biomechanical Analysis
Background:
- Tracheostomy is common in stroke patients requiring respiratory support.
- The impact of tracheostomy on swallowing function and kinematics in stroke survivors is not fully understood.
Purpose of the Study:
- To compare swallowing function and kinematics between stroke patients with and without tracheostomies.
Main Methods:
- Retrospective matched case-control study.
- Comparison of 24 stroke patients with tracheostomies (TRACH) and 24 without (NO-TRACH), matched for age, sex, and stroke type.
- Evaluation of swallowing function using Videofluoroscopic Dysphagia Scale (VDS) and Functional Oral Intake Scale (FOIS).
- Assessment of swallowing kinematics via two-dimensional kinematic analysis of videofluoroscopic swallow study (VFSS) images.
Main Results:
- No significant difference in total VDS scores between groups (p=0.247).
- Significantly lower FOIS in the TRACH group (2.33 ± 1.40) vs. NO-TRACH group (4.33 ± 1.79, p=0.001).
- TRACH group showed significantly reduced laryngeal vertical displacement and velocity, and hyoid bone horizontal velocity compared to the NO-TRACH group (p<0.05 for all).
Conclusions:
- Stroke patients with tracheostomies demonstrate impaired swallowing function and kinematics.
- Tracheostomy may negatively affect laryngeal and hyoid movement during swallowing.
- Further prospective studies are warranted to understand the long-term effects of tracheostomy on swallowing recovery in stroke patients.
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