急性脑梗死运动诱发电位检测与临床相关性研究

Measurement of motor evoked potential and study on its clinical correlation in patients with acute cerebral infarction

目的探讨急性脑梗死运动诱发电位变化特点与临床相关性。方法94例患者均于入院当天行日常生活能力和临床神经功能缺损(MESSS)评分,并根据瘫痪程度进行分级,于入院3d内行MEP检查。结果(1)病变部位不同,MEP的异常率不同。(2)MEP异常与病理征间无相关性。(3)MEP异常和MEP波形缺失与瘫痪程度、MESSS评分间具有正相关性,与B I评分具有负相关性,而皮质潜伏期和CMCT延长并不意味着患者病情严重。结论MEP检查对判断脑梗死患者神经功能损伤严重程度具有重要意义。

Objective To investigate the abnormal pattern of motor evoked potential （MEP）in patients with acute cerebral infarction and its clinical correlation. Methods Barthel index （BI）and modifed edinburgh-scandinavian stroke scale（MESSS） were studied on the first day after 94 patients with acute cerebral infarction admitted to hospital,grading was made according to the degree of paralysis as well. MEP were performed within 3 days. Results （ 1 ） Different location of infarction had different abnormality rate of MEP. （2） The abnormality of MEP had no correlation with pathologic sign. （3） The abnormality and absent wave of MEP had positive orrelation with degree of paralysis and MESSS, and negative correlation with BI. The prolonged latency and CMCT did＇ t mean the severity of condition. Conclusion MEP examination has important significance in detecting the degree of nerve impairment.