Valencak E, Witzmann A, Reisecker F, Löffler W
Schweiz Arch Neurol Psychiatr (1985). 1986;137(1):61-76.
Out of 114 patients who were operated because of cerebral aneurysms, 16 patients were monitored by means of Somatosensory Evoked Potential (SSEP) during the operation. In 9 of these, successful monitoring was possible during the whole duration of the surgical procedure. In the remaining seven, monitoring was impossible over a long period so that these patients were excluded from the present study. Monitoring of the cerebral functions by means of SSEP provides help in aneurysm surgery as follows: Objective evaluation of the function of the somatosensory system. The induced arterial hypotension--usually done in our department--implies danger for the brain, particularly, if rupture of the aneurysm occurs at the same time. In this case, Somatosensory Evoked Potentials provide the possibility to detect lesions of somatosensory neurons at different levels. This makes prognostic conclusions possible. Pathological changes of some SSEP components during temporary occlusion of arteries of the Circle of Willis indicate developing lesions of brain structures. Intraoperative SSEP data were correlated with the postoperative course in all 9 patients. Prognostic conclusions derived from these data are discussed.
在114例因脑动脉瘤接受手术的患者中，有16例在手术期间通过体感诱发电位（SSEP）进行监测。其中9例在整个手术过程中成功进行了监测。其余7例在很长一段时间内无法进行监测，因此这些患者被排除在本研究之外。通过SSEP监测脑功能在动脉瘤手术中提供了以下帮助：对体感系统功能进行客观评估。我们科室通常进行的诱导性动脉低血压对大脑有危险，特别是如果同时发生动脉瘤破裂。在这种情况下，体感诱发电位提供了检测不同水平体感神经元损伤的可能性。这使得得出预后结论成为可能。在大脑 Willis 环动脉临时闭塞期间，一些SSEP成分的病理变化表明脑结构正在发生病变。对所有9例患者的术中SSEP数据与术后病程进行了相关性分析。讨论了从这些数据得出的预后结论。
