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M型超声心动图测量二尖瓣前叶关闭速度评价左室收缩功能的研究 被引量:3

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摘要 目的:分析M型超声心动图测定的二尖瓣前叶关闭速度(即AC段斜率)与左室射血分数、心衰指数之间的关系,探讨其评价左室收缩功能的可行性。方法:入选对象102例,测量胸骨旁左室长轴和心尖四腔切面的二尖瓣前叶AC段斜率(分别为AC1和AC2),比较其与左室射血分数、心衰超声指数的相关性。结果:AC1和AC2与左室射血分数均呈正相关(r=0.685;r=0.647);与心衰超声指数均呈负相关(r-0.628;r=-0.612);Logistic回归分析显示心肌病、年龄、体重、收缩压、AC1、AC2、HFEI是预测患者左室收缩功能下降的独立预测因素;AC1和AC2预测左室射血分数<50%的ROC曲线下面积分别为0.925和0.913(均P<0.05)。结论 :M型超声心动图测量二尖瓣前叶关闭速率可用于左室收缩功能评估。
出处 《实用医学杂志》 CAS 北大核心 2016年第18期2963-2966,共4页 The Journal of Practical Medicine
基金 苏州市科技项目(编号:kjxw 2014013)
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