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Synchronized electrical stimulation in treating pharyngeal dysphagia
Vitoon Leelamanit1, Chusak Limsakul, Alan Geater
1Department of Otolaryngology, Faculty of Medicine, Prince of Songkla University, Hatyai, Thailand. lvitoon@ratree.psu.ac.th
The Laryngoscope
|December 4, 2002
Summary
Synchronous electrical stimulation of the thyrohyoid muscle effectively treats dysphagia caused by reduced laryngeal elevation. This noninvasive method improves swallowing function and reduces the need for feeding tubes.
Area of Science:
- Neurology
- Gastroenterology
- Rehabilitation Medicine
Background:
- Dysphagia, particularly due to reduced laryngeal elevation, significantly impacts patient quality of life.
- Conventional treatments may be insufficient for moderate to severe cases.
Purpose of the Study:
- To test the hypothesis that synchronous electrical stimulation of the thyrohyoid muscle improves dysphagia.
- To evaluate the effectiveness of a synchronous electrical stimulator for dysphagia treatment.
Main Methods:
- A prospective study involving 23 patients (11 male, 12 female) with moderate to severe dysphagia.
- Patients received daily synchronous electrical stimulation of the thyrohyoid muscle for 4 hours.
- Treatment continued until swallowing improvement criteria were met or alternative intervention was necessary.
Main Results:
- Twenty out of 23 patients showed marked improvement after the first treatment course.
- Treatment duration varied: 2-4 days for moderate dysphagia, 3-30 days for severe dysphagia.
- Six patients relapsed but were successfully retreated; three patients did not respond to treatment.
Conclusions:
- Synchronous electrical stimulation of the thyrohyoid muscle is effective for dysphagia from reduced laryngeal elevation.
- This noninvasive treatment actively assists swallowing, offering an alternative to other interventions.
- The synchronous electrical stimulator aids in restoring normal swallowing mechanisms and reduces reliance on nasogastric tubes or gastrostomy.