寰椎椎动脉沟环的动物实验研究及临床意义  

Experimental Study on Foramen Arch of Vertebral Artery of Atlas

作　　者：李卫国[1] 李世和[2] 孙静宜[2] 庞瑞麟[2] 苏克智[2] 何勇[1] 

机构地区：[1]深圳市第五人民医院骨科,深圳518001 [2]昆明医学院第一附属医院,昆明650032

出　　处：《昆明医学院学报》2005年第3期56-58,共3页Journal of Kunming Medical College

摘　　要：目的:通过动物实验研究寰椎椎动脉沟环对脑血供的影响.方法:用4只猕猴做模型,通过超声多普勒和椎动脉数字减影造影检测椎动脉血流速和血流量.结果:有寰椎椎动脉沟环存在时颈部活动可致椎动脉血流速度和血流量明显降低,椎动脉壁受刺激也可使椎动脉血流速度和血流量降低.结论:沟环除对动脉有机械压迫作用外,还对椎动脉壁的神经末梢有刺激作用引起血管收缩而减少椎动脉血流量.Objective： To investigate the changes of the rate and the volume of blood flow of vertebral artery by the foramen arch of atlas. Methods： 4 rhesus monkeys were used in the experiment. The results were determined by ultrasound Doppler and digital subtract arteriography. Results： The rate and the volume of blood flow of vertebral artery were decelerated significantly during the circus movement of neck when the foramen arch of vertebral artery of atlas was existed. The rate and the volume of blood flow of vertebral artery were also decelerated by stimulating the wall of vertebral artery. Conclusions： It was showed that besides mechanical pressure of the vertebral artery of the foramen arch, the stimulating the wall of vertebral artery can also cause the constriction of artery, and as a result, decelerate the blood flow of vertebral artery.

关 键 词：沟环 寰椎 椎动脉 

分 类 号：R322.7[医药卫生—人体解剖和组织胚胎学] R681.5[医药卫生—基础医学]