摘要
目的研究开颅夹闭颅内动脉瘤手术对脑干听觉诱发电位(BAEP)、躯体感觉诱发电位(SEP)和脑电图3项电生理指标的影响及临床意义。方法在25例颅内动脉瘤患者的开颅夹闭术中,进行BAEP、SEP和脑电图实时监测,观察手术操作对神经电生理指标的影响。结果手术操作均不同程度引起BAEP、SEP及脑电图的变化。其中BAEP的Ⅰ、Ⅲ、Ⅴ波的潜伏期延长0.8～1.0ms,Ⅰ～Ⅲ、Ⅲ～Ⅴ波峰间期延长0.3～0.5ms,Ⅰ、Ⅴ波幅电位较术前降低50%左右;SEP的N20、P25潜伏期延长3～5ms,波幅较术前降低50%。结论术中动态监测BAEPⅠ、Ⅲ、Ⅴ波的潜伏期、Ⅰ～Ⅲ、Ⅲ～Ⅴ波峰间期及Ⅰ、Ⅴ波电位变化,SEP的N20、P25潜伏期、电位变化、脑电图波幅和频率电生理的敏感变化,对了解术中有无脑缺血,灵活调整断流时间及手术方式具有重要的指导意义。
Objective To evaluate of monitoring BAEP,SEPand EEG during cerebral aneutysm sutgery,Methods Real-time BAEP,SEP and EEG were monitored during operations of intracranial aneurysm clipping on 25 patients.Results Changes of BAEP,SEPand EEG were found during the operations.The latency of wave Ⅰ,Ⅲ,Ⅴ of BAEP prolonged by 0.5-1.0 ms ,the interval of peakd of Ⅰ-Ⅲ as well as that of Ⅲ-Ⅴ prolonged by 0.3-0.5ms.The peaks of wave Ⅰand Ⅴ lowered by 50%postoperativelt.The latency of N20,P25 in SEP prolonged by 3-5ms,While the Amplitude of wave reduced by 50%.Conclusion Monitoring of BAEP,SEP and EEG is helpful for finding of out ischemia of brain,adjusting the timing of clipping and choose the optimal technique of surgery.
出处
《中国脑血管病杂志》
CAS
2005年第10期441-444,共4页
Chinese Journal of Cerebrovascular Diseases
关键词
颅内动脉瘤
诱发电位
听觉
脑干
诱发电位
躯体感觉
脑电描记术
监测
手术中
Intracranial aneurysm
Evoked portetials auditory brain stem
Evoked portentia somatosensory
Electroencephalograph
Monitoring intraoperative
