《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2021, Vol. 27 ›› Issue (9): 1078-1081.doi: 10.3969/j.issn.1006-9771.2021.09.012

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Effects of Transcranial Direct Current Stimulation over Vagus Nerve on Dysphagia after Stroke

CHEN Jia-jun,WU Deng-chong,SHAO Xiang-zhi,PU Xin-yu,MAO Yan-wu,CHEN Bing()   

  1. Wenzhou Chinese Medicine Hospital, Wenzhou, Zhejiang 325000, China
  • Received:2021-05-09 Revised:2021-08-06 Published:2021-09-25 Online:2021-10-09
  • Contact: CHEN Bing E-mail:19871874@qq.com
  • Supported by:
    Wenzhou Basic Scientific Research Projects(Y2020558)

Abstract:

Objective To study the effect of transcranial direct current stimulation (tDCS) regulating excitability of the vagus nerve on dysphagia after stroke.Methods From September, 2020 to February, 2021, 28 patients with dysphagia after stroke were randomly divided into control group (n = 14) and tDCS group (n = 14). Both groups accepted swallowing function training, and tDCS group received anodal tDCS over vagus nerve, while the control group received sham tDCS. They were assessed with modified Mann Assessment of Swallowing Ability (MMASA) and Australian Therapy Outcome Measures (AusTOMs)-swallowing scale before and after treatment.Results The scores of MMASA (|t| > 5.593, P < 0.001) and AusTOMs swallowing scale (|Z| > 2.121, P < 0.05) increased in both groups after treatment, and were higher in tDCS group than in the control group (|t| = 2.439, |Z| = 2.079, P < 0.05).Conclusion Anodal tDCS over vagus nerve may further release dysphagia after stroke.

Key words: stroke, dysphagia, transcranial direct current stimulation, vagus nerve