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为阐明基底动脉系统循环障碍对耳蜗功能的影响,本研究对阻断动脉时的耳蜗动作电位(AP)和耳蜗血流变化进行了实验观察。用猫33只,戊巴比妥钠腹膜内注射麻醉、切除喉、下咽、长肌和枕骨的一部分,暴露脑干腹侧,阻断基底动脉、前小脑动脉和迷路动脉,激光多普勒血流计测定阻断动脉同侧的耳蜗血流,耳蜗电图记录对侧AP变化作为对照。结果发现,阻断基底动脉、前小脑动脉和迷路动脉时
In order to elucidate the effects of circulatory disturbance in basilar artery on cochlear function, we investigated the changes of cochlear action potential (AP) and cochlear blood flow during occlusion of arteries. Cat 33, pentobarbital sodium anesthesia, intraperitoneal injection of anesthesia, removal of larynx, pharynx, long muscles and the occipital part of the exposed ventral brainstem, blocking the basilar artery, anterior cerebral artery and the labyrinth artery, laser Doppler Blood flow measurements blocked ipsilateral cochlear blood flow in the arteries and cochlear electrograms recorded contralateral AP changes as controls. The results showed that blocking the basilar artery, anterior cerebellar artery and labyrinthine artery