椎基底动脉供血障碍对前庭血流的影响  

EFFECT OF VERTEBROBASILAR ARTERY ISCHEMIA ON VESTIBULAR BLOOD FLOW

作　　者：李学佩[1] 马芙蓉[1] 王伟[1] 

机构地区：[1]北京医科大学第三医院耳鼻喉科,100083

出　　处：《北京医科大学学报》1997年第5期451-453,共3页Journal of Peking University(Health Sciences)

摘　　要：目的：探索推基底动脉供血障碍对前庭微循环的影响规律。方法：用自行设计制作的推基底动脉脑缺血动物模型，通过激光多普勒测定推基底动脉阻断前后前庭血流变化。结果：阻断前前庭血流为（194．00±45．26）mV，阻断后为（131．00±43．64）mV，阻断后降至平均基线的67．53％。结论：本文采用的动物模型反映了淮基底动脉伴有颈动脉狭窄、主干及其分支病变时病理生理特点及临床经过。推基底动脉狭窄引起前庭血流减少，导致眩晕和平衡障碍。Objective: To study the changing law of the vestibular microcirculation on vertebrobasilar artery ischemia(VBI). Methods: Mcasuring the vestibular blood flow (VBF)before and after vertebrobasilar artery occlusion with laser Doppler(LDF) in VBI animal model. Results: Before occlusion, the VBF was (194. 00 ±45.26) mV, after occlusion, was (131. 0 ± 43. 6) mV, VBF decreased to average basal line 67. 53%.Conclusion: VBI animal model refered to the pathophysiologic characteristic and clinical course in VBI. The VBF changed with severity of VBI, VBF decreased inducing vertigo and disequilibrium.

关 键 词：椎底动脉 供血不足 前庭 血液供给 眩晕 

分 类 号：R743[医药卫生—神经病学与精神病学]