解剖M型超声联合Tei指数评价肝硬化患者左心功能的临床研究

摘要

Objective:To discuss the feasibility of evaluating left ventricular with liver cirrhosis by anatomic M - mode and Tei index. Methods:To select thirty cases and twenty normal subjects;thirty cases were divided into three groups according to the Child - Pugh. To obtain left ventricular ejection fraction(LVEF),late flow peak(E,A)and E/ A ratio,E peak deceleration time(EDT). To measure isovolumic contraction time(ICT),isovolumic relaxation time(IRT),ejection time(ET)of left ven-tricular with anatomic M - mode for all subjects. Results:There is a statistic difference between normal controls and cases in Tei index,isovolumetric contraction index(ICT/ ET)and isovolumetric diastole index(IRT/ ET). and Tei index and related pa-rameters are more sensitive than traditional indexes with conventional echocardiography. Conclusion:The anatomic M - mode and Tei index provide a new simple testing method for evaluating left ventricular with liver cirrhosis.%目的：探讨解剖 M 型超声联合心肌做功指数（Tei 指数）评价肝硬化患者左心功能的临床可行性。方法：选取正常组（Ⅰ组）20例，病例组30例，依据 Child - Pugh 评分分为Ⅱ，Ⅲ，Ⅳ组。采用常规超声心动图测定50例研究对象的左室射血分数（LVEF），舒张早、晚期血流峰值（E，A 峰）及其比值（E/ A）和 E 峰减速时间（EDT）。采用解剖 M 型超声测定50例研究对象的左室等容收缩时间（ICT）、等容舒张时间（IRT）及射血时间（ET）。结果：肝硬化患者左室Tei 指数及等容收缩指数（ICT/ ET）、等容舒张指数（IRT/ ET）均高于对照组，差异有统计学意义；且 Tei 指数及其相关参数较传统心功能的评价指标更为敏感。结论：解剖 M 型超声联合 Tei 指数为临床提供了简便易行的评价肝硬化患者左心功能的新方法。