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超声评价心血管耦联关系的可行性研究 被引量:4

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摘要 目的探讨超声评价心脏-血管耦联关系的可行性。方法 40名健康学生,运动负荷试验采用改良的Bruce方案,分别在运动前、高峰期、运动后恢复期获取左室结构参数、二尖瓣瓣口血流动力学参数、左室侧壁二尖瓣环组织多普勒参数和左室功能参数。计算有效动脉弹性(Ea)、左室弹性(Ees)及心脏-血管耦联指数(VVI)。结果 Ees和Ea在试验各阶段呈现先增大后减小的趋势,运动前和峰值期的Ees和Ea差别有统计学意义。VVI在运动试验各阶段变化不明显,运动前和峰值期的VVI差异无统计学意义。结论正常人运动后血管弹性增高并匹配于增高的左室弹性。健康人心脏-血管弹性匹配、功能耦联维持在一个狭窄的范围,VVI变化不明显,超声评价心脏-血管耦联具有一定的可行性。
出处 《中西医结合心脑血管病杂志》 2013年第6期693-694,共2页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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