脑卒中后肩-手综合征的针极肌电分析

目的:探讨脑卒中后肩-手综合征(shoulder-hand syndrome,SHS)发生机制及其临床意义。方法:60例脑卒中患者分为SHS组(35例)和非SHS组(25例),采用肌电/诱发电位仪,进行患侧拇短展肌.小指展肌肌电图检查,并对自发电位进行评分。结果:SHS组30例均检出插入电位延长,自发电位出现率为100%,而非SHS组为46%(P<0.01),SHS组自发电位评分(135分)明显高于非SHS组评分(27分),差异有统计学意义(P<0.01)。结论:脑卒中后SHS患者上肢周围神经远端存在部分轴突变性,原因可能与继发的周围神经损伤有关,对早期诊断SHS有一定帮助。

Needle electromyography analysis in patients with shoulder-hand syndrome after stroke

Objective. To discuss the possible mechanism of post-stroke shoulder-hand syndrome （shoulder-hand syndrome, SHS）. Methods： 60 patients with stroke were divided into SHS group （35 cases） and non-SHS group （25 cases）, Use myo-electric potential/evoked potential meter to detect and classify the electric potential levels of the abductor digiti minimi and abductor pollicis brevis muscle of the affected limbs. Results. Extended potential was shown in 100% patients of SHS group, while 46% of the non-SHS group （P〈0.01）. Spontaneous potential scores of the SHS Group was 135 points, significant higher than the 27 points of the non-SHS group （P〈0.01）. Conclusion： Distal peripheral nerve axonal de- generation of the upper extremity is presented in the post-stroke SHS patients, which might be related to the peripheral nerve injury, thus electromyography examination can help to diagnose SHS.