Transcranial magnetic stimulation can improve swallowing after a stroke
10.3760/cma.j.issn.0254-1424.2021.12.011
- VernacularTitle:单侧高频重复经颅磁刺激对脑卒中吞咽障碍及功能性磁共振成像的影响
- Author:
Xuting CHEN
1
;
Xudong GU
;
Yunhai YAO
;
Linhua TAO
;
Ming ZENG
;
Hankui YIN
;
Fang SHEN
;
Cao LU
;
Mengling CAO
;
Meihong ZHU
;
Jianming FU
Author Information
1. 浙江中医药大学第二临床医学院，杭州 310053
- Keywords:
Transcranial magnetic stimulation;
Stroke;
Dysphagia;
Functional magnetic resonance imaging
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2021;43(12):1105-1109
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe any effect of repeated unilateral high frequency transcranial magnetic stimulation (rTMS) on the swallowing function and functional magnetic resonance images of dysphagic stroke survivors.Methods:Twenty stroke survivors with dysphagia were randomly divided into a treatment group ( n=10) and a control group ( n=10). Both groups received traditional swallowing rehabilitation training, while the treatment group was additionally provided with high frequency rTMS over the cortical area of the suprahyoid muscle group of the healthy contralateral cerebral hemisphere. The stimulation frequency was 5Hz and the stimulation intensity was 80% of the resting movement threshold. During the 20-minute treatment, there was a 20-second interval between each 2-second dose of stimulation. Before and after the treatment, both groups were evaluated using the Eating Assessment Tool-10 (EAT-10), a swallowing functional communication measurement (FCM) and the modified Mann Assessment of Swallowing Ability (MMASA). In addition, functional magnetic resonance imaging was used to observe any changes in the relevant brain regions. Results:After the treatment the average EAT-10, FCM and MMASA scores of both groups were significantly better than those before the treatment, with the treatment group′s averages significantly superior to those of the control group. After the treatment, the activation range of the parietal lobe, the superior parietal lobule, the BA7 region and the BA40 area in the treatment group was significantly larger than before the treatment and larger than the control group′s ranges.Conclusions:Repeated high-frequency transcranial magnetic stimulation of the cortical area of the suprahyoid muscles in the contralateral cerebral hemisphere can improve dysphagia and promote the activation of brain areas related to swallowing after a stroke.
