摘要
目的分析单侧脑干卒中后吞咽障碍患者吞咽时双侧颏下肌群表面肌电特点，并探讨吞咽障碍发生机制。方法选取左侧脑干卒中后吞咽障碍患者8例，右侧脑干卒中后吞咽障碍患者7例及健康志愿者10例。采用表面肌电图记录上述对象吞咽5m1温水时双侧颏下肌群表面肌电振幅及时程。结果左侧脑干卒中后吞咽障碍患者左侧颏下肌群表面肌电振幅[（46．2±16．2）μV]明显高于右侧[（43．0±13．8）μV]，差异具有统计学意义（P〈0．05），左侧吞咽时程[（1430±303．7）ms]与右侧吞咽时程[（1407．1±282．9）ms]间差异无统计学意义（P〉0．05）；右侧脑干卒中后吞咽障碍患者右侧颏下肌群表面肌电振幅[（47．7±15．6）μV]明显高于左侧[（40．1±9．6）μV]，差异具有统计学意义（P〈0．05），左侧吞咽时程[（1548．1±290．8）ms]与右侧吞咽时程[（1564．3±295.8）ms]间差异无统计学意义（P〉0．05）；正常人吞咽时其左、右两侧颏下肌群表面肌电振幅[分别为（30．9±2．5）μV和（30．5±3．2）μV]及时程[分别为（1288．0±221．9）ms和（1290．00±217．6）ms]间均无明显差异（P〉0．05）。与正常人比较，左侧脑干卒中患者左侧颏下肌群及右侧脑干卒中患者右侧颏下肌群振幅均显著增强（P〈0．05），其时程均明显延长（P〈0．05）。与正常人比较，左侧脑干卒中患者右侧颏下肌群及右侧脑干卒中患者左侧颏下肌群振幅均显著增强（P〈0．05），其时程均无显著差异（P〉0．05）。结论单侧脑干卒中后吞咽障碍患者其双侧颏下肌群功能均受损，且病灶侧受损程度较对侧严重。
Objective To observe the surface electromyographic characteristics of the bilateral submen- tal muscles in dysphagia secondary to unilateral brainstem stroke. Methods A total of 25 subjects were recrui- ted.There were 8 stroke patients with dysphagia secondary to a left brainstem stroke and 7 stroke patients with dysphagia secondary to a right brainstem stroke. There were also 10 healthy controls matched in age and gender. The duration and peak amplitude of the submental muscle when swallowing 5 ml of warm water were recorded u- sing a surface electromyograph. Results The average amplitude of the left submental muscle in patients with a left brainstem stroke was significantly longer than that of those with a right brainstem stroke, but no significant differences in average duration were observed. Conversely, the amplitude of the right submental muscle in pa- tients with a right brainstem stroke was significantly longer than that of those with left brainstem stroke, but again there were no significant differences in duration. No significant differences were observed among the healthy con- trols. The amplitude and duration of both the affected and healthy sides of the patients were of course significantly longer or stronger than those of the healthy controls. Conclusion The swallowing function of the bilateral sub- mental muscles may be impaired among unilateral stroke survivors with dysphagia. The damage on the affected side is more severe than on the opposite side.
出处
《中华物理医学与康复杂志》
CAS
CSCD
北大核心
2016年第7期497-500,共4页
Chinese Journal of Physical Medicine and Rehabilitation
关键词
吞咽障碍
表面肌电图
脑干卒中
双侧
Dysphagia
Surface electromyography
Brainstem
Stroke
Submental muscles
