椎动脉颅内段是动脉硬化的好发部位,此处病变常导致椎动脉痉挛、椎—基底动脉血栓形成,造成严重的脑缺血,残废率、死亡率都很高。长期以来,人们一直在努力寻找各种有效的治疗方法。Forbes 曾报告电刺激颈交感神经能引起椎—基底动脉收缩、痉挛,于是有人提出用阻滞颈交感神经节的办法,使脑血管扩张,促进侧支循环形成,增加 Vertebral artery intracranial segment is a common site of atherosclerosis, where lesions often lead to vertebral artery spasm, vertebrobasilar thrombosis, causing severe cerebral ischemia, disability and mortality are high. For a long time, people are always trying to find effective treatments. Forbes has reported that electrical stimulation of the cervical sympathetic can cause vertebrobasilar artery contraction, spasm, so it was proposed to block the cervical sympathetic ganglia approach, the expansion of cerebrovascular, collateral circulation and promote the formation of increased