健康人群心血管超声结构和功能及血脂的增龄性变化
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国家973重点基础研究发展规划基金(2007CB507405)


The Study on Cardiovascular Structure and Function of Ultrasonograph,Blood-Fat of Healthy People
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    摘要:

    目的探讨健康人群心血管超声结构和功能及血脂的增龄性变化,进一步阐明动脉硬化发生机制,以指导老龄人群动脉硬化的早期防治。方法从沈阳市、大连市和北京市中心筛选健康居民852人,依据年龄分为4组:≤44岁组205人,45~59岁组241人,60~74岁组254人,≥75岁组152人。检测血压和血脂,心脏超声测定各房室腔径、左心室舒张末和收缩末容量、左心室射血分数及升主动脉径等41项指标;B型超声检测颈总动脉内膜中膜厚度、双侧颈总动脉血流参数等14项指标。结果采用|r|≥0.25,P≤0.01作为同时序年龄相关变量入选标准,经相关分析发现,脉压、颈总动脉内膜中膜厚度、颈总动脉内径、二尖瓣A峰前壁值、总胆固醇和低密度脂蛋白与时序年龄呈线性正相关(r分别为0.521、0.425、0.258、0.17、0.274和0.181,P均<0.01),二尖瓣E峰侧壁值和高密度脂蛋白与时序年龄呈线性负相关(r为-0.25和-0.251,P<0.05)。结论脉压、颈总动脉内膜中膜厚度、颈总动脉内径是影响健康人颈动脉结构、各血流参数的独立因素;颈总动脉内膜中膜厚度增厚是动脉硬化的早期改变;总胆固醇是动脉硬化的重要危险因素。

    Abstract:

    Aim To explore the cardiovascular structure and function of ultrasonograph, blood-fat of healthy people by non-invasive ways, and analyze its action mechanism of arteriosclerosis. Methods 855 healthy people coming from 3 cities of Shenyang, Dalian and Beijing, were divided into 4 groups:≤44 years old group, 45~59 years old group, 60~74 years old group and ≥75 years old group. 55 items including life style, dietary structure, blood pressure, heart and carotid ultrasonograph, biochemistry, were measured to observe their changing with advancing age. Results 8 items including pulse pressure (PP), carotid artery intima-media thickness (IMT), carotid artery internal diameter (D), mitral valve anulus anterior wall A (MVAA), mitral valve anulus lateral wall E (MVLE), total cholesterol (TC), low density lipoprotein (LDL), high density lipoprotein (HDL) were correlated with aging significantly (r value was 0.521, 0.425, 0.258, 0.17, -0.25, 0.274, 0.181, -0.251 respectively with all P<0.01). Conclusions PP, IMT and carotid artery internal diameter are independent factors of the cardiovascular structure and function; IMT is the change of arteriosclerosis at earlier period; TC is the important risk factor of arteriosclerosis.

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单海燕,白小涓,韩璐璐,张伟光,孙雪峰,林宏丽,陈香美.健康人群心血管超声结构和功能及血脂的增龄性变化[J].中国动脉硬化杂志,2008,16(12):989~992.

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  • 收稿日期:2008-09-01
  • 最后修改日期:2008-12-02
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