摘要
目的:比较正常人及脊髓损伤患者的体感诱发电位(SEP),评价其临床应用价值。方法:选择正常人41例,脊髓损伤患者30例。测定正常人正中神经及胫后神经皮层诱发电位(CSEP)、颈段及胸腰段脊髓诱发电位(SCEP)潜时,将潜时与年龄及身长进行多元相关及回归分析,以理论值±2s作为正常范围,将脊髓损伤患者的测定结果与之比较。结果:正常人诱发电位潜时均与身长呈高度正相关。全瘫病人的CSEP消失,而不全瘫者多表现为部分波消失及潜时延长。不同程度脊髓损伤的SCEP表现无明显差别,但损伤平面以下的胸腰段SCEP多存在,而在损伤平面以上的多消失。结论:CSEP可区别完全性及非完全性脊髓损伤。SCEP不能反映脊髓损伤的严重程度,但有定位诊断价值。
Objective:To compare the somatosensory evoked potentials(SEP)of normal persons with that of spinal cord injured pa-tients, and to evaluate its clinical value. Methods:CSEP and SCEP were recorded in 41 healthy persons and 30 spinal cord injured patients using DISA 2000-M Type Electro-physiological equipment. Multiple correlation and regression analysis was used to analyze the correlation between potentials and age,and body height. Results: There was a positive correlation be-tween evoked potentials and body height in control group. CSEP disappeared in complete injured, and some waves disap-peared and latencies prolonged in incomplete injured. Although there was no significant difference in SCEP between different degrees of injuries,SCEP mainly existed in patients with injuries under the lumbar vertebrae level, and disappeared in pa-tients injured above the level. Conclusion:CSEP can be used to differentiate complete and incomplete spinal cord injuries. Al-though SCEP is useful for localizing the traumatic level,it can not determine the grade of injuries.
出处
《天津医药》
CAS
2000年第10期579-582,共4页
Tianjin Medical Journal
关键词
脊髓损伤
体感诱发电位
临床应用
spinal cord evoked potentials,somatosensory spinal cord injuries
