Bilateral high-frequency magnetic stimulation of the cerebellum can improve the swallowing of stroke survivors
10.3760/cma.j.issn.0254-1424.2024.07.005
- VernacularTitle:双侧小脑高频重复经颅磁刺激对脑卒中后吞咽障碍患者吞咽功能的影响
- Author:
Yiyang XIAO
1
;
Xiaona PAN
;
Yuyang WANG
;
Hui SUN
;
Pingping MENG
;
Qiang WANG
Author Information
1. 青岛大学附属医院康复医学科，青岛 266003
- Keywords:
Dysphagia;
Stroke;
Transcranial magnetic stimulation;
Magnetic stimulation
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2024;46(7):608-612
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe any effect of bilateral high-frequency repetitive transcranial magnetic stimulation (rTMS) of the cerebellum on the swallowing of stroke survivors with dysphagia.Methods:Thirty-eight patients with post-stroke dysphagia were randomly divided into a cerebellar stimulation group of 20 and a sham group of 18. In addition to drug therapy and physical rehabilitation training, the cerebellar stimulation group received 500 pulses of rTMS of the cerebellum daily at 10Hz and 120% of the resting movement threshold lasting 1s at 9s intervals. The sham stimulation group was treated with sham rTMS (with the angle between the stimulation coil and the scalp at 90°). Twenty minutes later, both groups were given 30 minutes of routine swallowing training daily by the same speech therapist. The treatment was administered 5 times a week for 3 weeks. Before the treatment and afterward, both groups′ swallowing was evaluated y videofluoroscopic swallowing study (VFSS), using a functional dysphagia scale (FDS) and using the Rosenbek penetration aspiration scale (PAS). Oral transport time, swallowing response time, pharyngeal transport time, laryngeal vestibular closure time and upper esophageal sphincter opening duration were recorded, and the changes in swallowing function and swallowing time parameters before and after the treatment were compared between the two groups.Results:Before the stimulation there were no significant differences between the two groups. Afterward, the average PAS and FDS scores of both groups had improved significantly, but with significantly greater improvement in the cerebellar stimulation group than in the sham group. Average oral transit time and swallow response time had shortened significantly, but with significantly shorter time, on average, in the cerebellar stimulation group.Conclusion:Bilateral high-frequency rTMS of the cerebellum can improve the swallowing of persons with dysphagia, and shorten their oral transit time and swallow response time.
