老年血管性眩晕患者脑前后循环系统的功能状态分析  

Functional Status Analysis of Anterior and Posterior Circulation System in Elderly Patients with Vascular Vertigo

作　　者：朱海霞[1] 宋治[1] 资晓宏[1] 黄献[1] 罗学港 曾志成[2] 

机构地区：[1]中南大学湘雅三医院神经内科,湖南省长沙市410013 [2]中南大学湘雅医学院解剖和神经生物研究室,湖南省长沙市410013

出　　处：《中国动脉硬化杂志》2008年第4期314-316,共3页Chinese Journal of Arteriosclerosis

摘　　要：目的检测脑供血系统血流频谱形态及颈部动脉有无动脉粥样硬化及斑块形成,了解脑前后循环各主要动脉功能状态与血管性眩晕发生的关系。方法应用西门子Acuson Sequoia 512彩色多谱勒超声显像仪与MT-3000经颅多谱勒仪回顾分析185例血管性眩晕患者的颈部血管彩超与经颅多谱勒检测结果。结果经检测显示血管性眩晕患者仅出现前循环系统功能改变的14例(7.57%),仅有后循环功能改变的42例(22.7%),两者比较差异有统计学意义(χ2=7.67,P<0.01)。而前后循环同时受累的有105例(56.8%)。137例患者存在普遍的脑动脉硬化或血管弹性减退现象,97例患者存在动脉粥样硬化斑块,斑块好发部位以颈动脉分叉最多见,发生在椎基底动脉系统者仅3例(1.4%)。结论血管性眩晕的发生不仅仅与后循环的功能异常有关,多同时伴有前循环功能状态的改变,甚至可仅表现为前循环供血异常。而脑动脉粥样硬化及斑块的形成也是影响脑供血的重要因素。Aim To explore functional status of the main arteries of cerebral anterior and posterior circulation system in elderly patients with vascular vertigo, chnical images of cerebral blood flow features were detected and carotid atherosclerosis or plaque were observed. Methods The color doppler flow sonographic features （Siemens Acuson Sequoia 512 ） and transcra- nial Dopper （TCD） indexes （MT-3000） of carotid arteries in 185 patients with vascular vertigo were observed and evaluated pro- spectively. Results Simple function change of cerebral anterior or posterior circulation system were found in 14 cases （7.57%） and 42 cases （22.7%） vertigo patients. There was significant difference between the two groups （x2 = 7.67, P 〈 0.01 ）. Both function change of cerebral anterior and posterior circulation system were found in 105 cases （56.8%） vertigo patients. Cerebral atherosclerosis or carotid vessels elasticity decrease is common in 137 cases （74.1% ）. Carotid atherosclerosis plaques was fotmd in 97 cases （52.4 % ）. The plague was mostly located at the bifureation of the carotid artery, only 3 cases at the vertebrobasilar arterial system. Conclusion Among patients, vascular vertigo occurrence is related not only with the function abnormalities of posterior circulation, but also with the anterior part, even only manifesting with the simple anterior circulation lesion. Atheroselerosis or plaque form is also the most important factor for cerebral circulation insufficiency.

关 键 词：临床诊断学 超声检测 彩色多普勒血流 动脉粥样硬化 血管性眩晕 

分 类 号：R44[医药卫生—诊断学]