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70~99岁老人冠状动脉钙、颈动脉壁厚度与心血管病的关系 被引量:5

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摘要 少见群体研究评估冠状动脉钙(coronary artery calcim,CAC)与心血管病变时的颈动脉超声的关联,尤其在年龄大于70周岁的群体中。美国匹兹堡心血管健康研究中心在1998~2000年期间选择了559名平均年龄在80.2岁的男性和女性,用电子束计算机断层摄影术评估CAC值,用颈动脉超声评估颈总动脉(CCA-IMT)和颈内动脉内膜中层的厚度(ICA-IMT),并全部进行跟踪调查至2003年6月,观察其心血管病的发生。分别通过调整和非调整心血管风险因子检测总的和偶然事件的粗率及危险比。5年后,有127例心血管病例发生;48例心肌梗塞或心血管病致死;28例中风或中风致死。总的和偶然的心血管病发生率在冠状动脉钙(CAC)和颈总动脉内膜厚度(CCA-IMT)各自的四分位数均高于颈内动脉内膜增厚患者(ICA-IMT)。对于总的心血管病,调整后的危害率第四个四分位数对第一个四分位数在CAC为2.1(95%CI:1.2~3.9),在颈总动脉内膜厚(CCA-IMT)为2.3(95%CI:1.3~4.1)。虽然(CAC是预示中风发生的一个重要因素,但CCA-IMT与中风的相关性强于CAC。虽然心血管病的发生尤其是中风在女性的相对风险较强,但没有显著的性别差异。由此推断,在年龄大于70岁的人群中,CAC和CCA-IMT对总的心血管病和冠心病有类似危险比。尽管CAC也是中风发生的一个预示因子,但CCA-IMT与中风发作的相关性大于CAC。
出处 《国外医学(医学地理分册)》 CAS 2012年第4期273-275,共3页 Foreign Medical Sciences:Section of Medgeography
基金 西藏自治区重点资助项目(No.201122)
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