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目的:分析中年以上无症状人群脑血管狭窄频率及分布。方法:对无症状人群应用经颅多谱勒超声仪(TCD)检测双侧大脑中动脉(MCA)、前动脉(ACA)、后动脉(PCA)、椎-基底动脉(V-BA),并统计调查人群的年龄、血压、血糖、血脂、头痛、头晕、吸烟、饮酒等因素,对各因素与血管狭窄的相关性应用统计学方法进行处理。结果:805例中血管狭窄发生率为4.09%。高血压、糖尿病、年龄等因素与血管狭窄有显著相关性(P<0.01)。性别、头痛、头晕、吸烟、饮酒与颅内血管狭窄之间无统计学意义(P<0.05)。且有高血压和(或)糖尿病史的无症状人群脑血管狭窄率(10.18%)明显高于无病史者(1.72%)。结论:无症状人群中高血压、糖尿病、年龄因素是脑血管狭窄主要危险因素。
Objective: To analyze the frequency and distribution of cerebrovascular stenosis in middle-aged asymptomatic people. Methods: The bilateral middle cerebral artery (MCA), anterior cerebral artery (ACA), posterior artery (PCA), vertebrobasilar artery (V-BA) were measured by TCD in asymptomatic subjects. Statistical analysis of the population age, blood pressure, blood glucose, blood lipids, headache, dizziness, smoking, alcohol consumption and other factors, the factors associated with vascular stenosis statistical methods for processing. Results: The incidence of vascular stenosis in 805 cases was 4.09%. Hypertension, diabetes, age and other factors and vascular stenosis was significantly related (P <0.01). Gender, headache, dizziness, smoking, alcohol consumption and intracranial vascular stenosis were not statistically significant (P <0.05). The rate of cerebrovascular stenosis (10.18%) in asymptomatic subjects with history of hypertension and / or diabetes was significantly higher than that without history (1.72%). Conclusion: Hypertension, diabetes mellitus and age factors in asymptomatic population are the main risk factors of cerebrovascular stenosis.