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Published on: January 10, 2013
Effectiveness of Neuromuscular Electrical Stimulation on Patients With Dysphagia With Medullary Infarction
Ming Zhang1, Tao Tao2, Zhao-Bo Zhang3
1Department of Physical Medicine and Rehabilitation, Qilu Hospital, Medical School of Shandong University, Jinan, Shandong, China; Department of Physical Medicine and Rehabilitation, Zibo Central Hospital, Zibo, Shandong, China.
Objective:
To evaluate and compare the effects of neuromuscular electrical stimulation (NMES) acting on the sensory input or motor muscle in treating patients with dysphagia with medullary infarction.
Design:
Prospective randomized controlled study.
Setting:
Department of physical medicine and rehabilitation.
Participants:
Patients with dysphagia with medullary infarction (N=82).
Interventions:
Participants were randomized over 3 intervention groups: traditional swallowing therapy, sensory approach combined with traditional swallowing therapy, and motor approach combined with traditional swallowing therapy. Electrical stimulation sessions were for 20 minutes, twice a day, for 5d/wk, over a 4-week period.
Main Outcome Measures:
Swallowing function was evaluated by the water swallow test and Standardized Swallowing Assessment, oral intake was evaluated by the Functional Oral Intake Scale, quality of life was evaluated by the Swallowing-Related Quality of Life (SWAL-QOL) Scale, and cognition was evaluated by the Mini-Mental State Examination (MMSE).
Results:
There were no statistically significant differences between the groups in age, sex, duration, MMSE score, or severity of the swallowing disorder (P>.05). All groups showed improved swallowing function (P≤.01); the sensory approach combined with traditional swallowing therapy group showed significantly greater improvement than the other 2 groups, and the motor approach combined with traditional swallowing therapy group showed greater improvement than the traditional swallowing therapy group (P<.05). SWAL-QOL Scale scores increased more significantly in the sensory approach combined with traditional swallowing therapy and motor approach combined with traditional swallowing therapy groups than in the traditional swallowing therapy group, and the sensory approach combined with traditional swallowing therapy and motor approach combined with traditional swallowing therapy groups showed statistically significant differences (P=.04).
Conclusions:
NMES that targets either sensory input or motor muscle coupled with traditional therapy is conducive to recovery from dysphagia and improves quality of life for patients with dysphagia with medullary infarction. A sensory approach appears to be better than a motor approach.
