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Journal of the Korean Academy of Rehabilitation Medicine 2007;31(6):636-641.
Neuromuscular Electrical Stimulation Therapy for Patients with Chronic Dysphagia Caused by Stroke.
Park, Yeon Joong , Yang, Hee Seung , Cha, Dong Yeon
Department of Rehabilitation Medicine, Seoul Veterans Hospital, Korea. yang7310@naver.com
뇌졸중으로 인한 만성 연하장애 환자에서 기능적 전기 자극 치료
박연중, 양희승, 차동연
서울보훈병원 재활의학과
Abstract
Objective
To evaluate the effect of neuromuscular electrical stimulation (NMES) therapy on swallowing dysfunction in patients with chronic (more than 6 months) dysphagia caused by stroke.
Method
A total of 16 patients with stroke-caused swallowing disorders based on a videofluoroscopic swallowing study (VFSS) were treated with NMES for two weeks. NMES was applied to the skin over the anterior neck muscles for one hour a day. Swallowing function was evaluated by the functional dysphagia scale using the VFSS, clinical dysphagia scale and the American Speech-Language Hearing Association National Outcomes Measurements System Swallowing Scale (ASHA NOMS scale) before and after electrical stimulation. Follow up VFSS was performed one month after intervention.
Results
After completing ten treatment sessions, aspiration, reflex coughing and the total score in the clinical dysphagia scale were significantly decreased (p<0.05). There was also a significant improvement in the ASHA NOMS scale (p< 0.05). Regarding the functional dysphagia scale, the residue in the valleculae and piriformis sinus, and total scores were significantly decreased (p<0.05). Specifically, the scores of the pharyngeal phase were mainly decreased as compared to that of the oral phase. In addition, these effects were maintained one month after the intervention as measured with functional dysphagia scale.
Conclusion
After ten sessions of NMES, we found improvement in dysphagia parameters in chronic dysphagia patients. Specifically, residue in the valleculae and piriformis sinus, and a parameter of the pharyngeal phase were significantly improved. (J Korean Acad Rehab Med 2007; 31: 636-641)
Key Words: Dysphagia, Stroke, Neuromuscular electrical stimulation (NMES)


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