Landi A, Demo P, Carraro J R, Volpin L, Fornezza U, Faccin G, De Luca G P, Benedetti A
Department of Neurosurgery, General Hospital, Vicenza, Italy.
Agressologie. 1990 Jun;31(6):363-6.
During cerebral aneurysms surgery, brain tissue may suffer for global or local ischemia due to deliberate hypotension and surgical manoeuvres. Somatosensory evoked potentials (SEPs) can detect functional derangements consequent to hypoxia, before a permanent brain damage is produced. Forty two patients, undergoing cerebral aneurysms surgery for treatment of SAH, were evaluated intraoperatively with SEP recordings. It has been stressed that no permanent neurological damage is to be expected if the absolute value of Central Conduction Time (CCT) does not exceed 9.5 ms for 10 min at least and the cortical waves are visible throughout the whole procedure. SEP changes are strictly related with MAP decrease and surgical handlings.
在脑动脉瘤手术期间，由于控制性低血压和手术操作，脑组织可能会遭受整体或局部缺血。体感诱发电位（SEP）能够在永久性脑损伤发生之前检测到因缺氧导致的功能紊乱。对42例因蛛网膜下腔出血接受脑动脉瘤手术的患者在术中进行SEP记录评估。需要强调的是，如果中央传导时间（CCT）的绝对值至少10分钟内不超过9.5毫秒且在整个手术过程中皮层波可见，则预计不会出现永久性神经损伤。SEP变化与平均动脉压（MAP）降低和手术操作密切相关。
