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脑钠素与非瓣膜性心房颤动患者血栓形成的关系及抗凝治疗对其的影响

International Medicine and Health Guidance News(2004)

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Abstract
目的评价血浆脑钠素(BNP)水平与非瓣膜性心房颤动(Af)患者血栓形成的关系及抗凝治疗后其水平的变化.方法以36例持续性非瓣膜性房颤患者为研究对象,分为血栓组(14例)和无血栓组(22例),通过食道超声观察血栓形成情况并测定左心耳血流速度,检测房颤患者血浆脑钠素水平及抗凝治疗后的变化,通过多元回归分析评价脑钠素水平与血栓形成的关系.结果血栓组左心耳血流速度明显低于无血栓组(11.8士6.2 versus 32.1±17.5 cm/s,P《0.05),而脑钠素水平明显高于无血栓组(124.6士53.8 versus 86.4±45.0 ng/L,P《0.05).血栓组经抗凝治疗后脑钠素水平明显下降(124.6±53.8 versus 90.3±39.5 ng/L,P《0.05),左心耳血流速度上升(11.8±6.6 versus 28.8±14.1cm/s,P《0.05).多元回归分析显示BNP水平是房颤患者血栓形成的预测因子.HNP水平与LAA血流速度呈负相关(r=-0.38,P《0.05).结论血浆BNP水平可作为非瓣膜性房颤血栓形成的预测因子之一.
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Key words
nonvalvular atrial fibrillation,atrial fibrillation,thromboembolism,natriuretic peptide
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