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Published on: January 10, 2013
Application of 4-channel neuromuscular electrical stimulation in a chronic stroke patient with dysphagia: A case
1Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam-si, Gyeonggi-do, South Korea.
Rationale:
Dysphagia is a frequent complication after stroke, often resulting in aspiration, malnutrition, and diminished quality of life. Conventional swallowing rehabilitation, including 2-channel neuromuscular electrical stimulation (NMES), may have limited benefits in chronic cases. A newly developed 4-channel NMES delivers sequential stimulation to mimic physiological swallowing.
Patient Concerns:
A 63-year-old man experienced persistent dysphagia 25 months after a left hemispheric infarction. Despite prolonged conventional swallowing rehabilitation combined with 2-channel NMES, he remained restricted to pureed foods (International Dysphagia Diet Standardisation Initiative level 4), required frequent suctioning, and showed severe aspiration on videofluoroscopic swallowing study (penetration-aspiration scale score up to 8).
Diagnoses:
The patient was diagnosed with chronic poststroke dysphagia with severe aspiration confirmed by videofluoroscopic swallowing study.
Interventions:
The patient underwent an 8-week course of 4-channel NMES applied twice daily in combination with conventional swallowing rehabilitation.
Outcomes:
Following the intervention, the patient's diet advanced to International Dysphagia Diet Standardisation Initiative level 6, penetration-aspiration scale scores improved to 1 to 3, suctioning was no longer required, and both the Eating Assessment Tool-10 and Swallowing Quality of Life Questionnaire scores markedly improved.
Lessons:
This case suggests that 4-channel NMES may be a promising treatment option for chronic poststroke dysphagia refractory to conventional swallowing rehabilitation and warrants further validation in larger studies.
