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高同型半胱氨酸血症患者血管内皮功能的超声研究 被引量:6

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摘要 目的应用多普勒超声技术检查高同型半胱氨酸血症(Hhcy)患者肱动脉血流介导的舒张功能,探讨其导致冠心病的可能机制。方法选择行冠状动脉造影患者130例,以血浆同型半胱氨酸(hcy)的水平进行分组,对照组62例为正常hcy者和Hhcy组68例为高hcy患者。再根据有无高血压分为四组:A组(对照组无高血压者),B组(对照组有高血压者),C组(Hhcy组无高血压者)和D组(Hhcy组有高血压者),测定其肱动脉血流介导的舒张功能。结果C组、D组患者的肱动脉内皮依赖的舒张功能分别较A组、B组的明显下降[5.54%比6.67%;5.03%比6.12%(P<0.05)],而硝酸甘油介导的非内皮依赖的舒张功能无差异。Hhcy组冠心病发生率较对照组升高[54.5%比34.4%;57.1%比40.0%(P<0.01)]。结论Hhcy可导致肱动脉内皮依赖的舒张功能受损,内皮功能减退可能是其致冠心病的重要机制。
出处 《临床内科杂志》 CAS 2006年第2期129-131,共3页 Journal of Clinical Internal Medicine
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