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为探讨缺血再灌流损伤脊髓传导功能的变化及2 氨基膦酸基戊酸(APV)的影响,12 只家兔随机均分为缺血60m in 组和缺血60m in+ APV 治疗组,以选择性腰动脉阻断法模拟脊髓缺血再灌流损伤,观测各组在缺血前、缺血时及再灌流时皮层体感诱发电位(CSEP)和运动诱发电位(MEP)的变化。结果:缺血(13.2±4.0)m in、(20.6±5.7)m in 时CSEP、MEP分别消失,再灌流8h 后APV 治疗组CSEP和MEP的N1 和P1 波峰潜时较损伤组明显缩短。表明CSEP能更早地反映脊髓损伤情况,MEP则对脊髓损伤的预后功能判断更有意义,APV能改善损伤脊髓的感觉运动传导功能
To investigate the changes of spinal conduction function and the effect of 2-aminophosphonic acid (APV) on ischemia-reperfusion injury, 12 rabbits were randomly divided into ischemia 60m in group and ischemia 60m in + APV group The lumbar spinal cord ischemia-reperfusion injury was simulated by lumbar artery occlusion. The changes of cortex somatosensory evoked potential (CSEP) and motor evoked potential (MEP) were observed before ischemia, ischemia and reperfusion. Results: The CSEP and MEP disappeared at ischemia (13.2 ± 4.0) m in and (20.6 ± 5.7) m in, respectively. The peak of N1 and P1 of CSEP and MEP in APV treatment group after 8 h of reperfusion Compared with the injury group was significantly shorter. It shows that CSEP can reflect the condition of spinal cord injury earlier and MEP is more meaningful to determine the prognosis of spinal cord injury. APV can improve the sensory motor conduction function of injured spinal cord