组织多普勒Tei指数在评价肺动脉高压患者右心功能中的应用价值

Evaluation of Tissue Doppler Tei index for right ventricular function in pulmonary hypertension

目的应用组织多普勒技术,测量并计算肺动脉高压患者的右室Tei指数,探讨其在评价肺动脉高压患者右室整体功能方面的价值,并探讨Tei指数与肺动脉压、右室舒张末内径之间的关系。方法对48例肺动脉高压患者和40例健康对照者的右心常规超声指标进行测量,应用组织多普勒技术方法测量三尖瓣环的运动频谱,测量其右室Tei指数,进行分析比较。结果肺动脉高压轻、中、重组患者右室Tei指数均明显高于正常对照组(P<0.05),而肺动脉高压患者各组间比较差异无统计学意义;肺动脉高压患者伴右室扩大与不伴右室扩大者与对照组比较,右室Tei指数差异有统计学意义(P<0.05),而两组间差异无统计学意义。结论 (1)Tei指数是评价肺动脉高压患者右室整体功能的新指标,准确、便捷、稳定。(2)右室Tei指数不受右室压力负荷及右室形态影响。

Objective To determine the clinical value of Tissue Doppler Tei index in the assessment of right ventricular funtion in patients with pulmonary hypertension.Discussion the relationship between Tei index and pulmonary artery pressure,right ventricular end-diastolic diameter.Methods A total of 48 patients with PH and 24 normal subjects underwent Doppler echocardiographic examination including measurement of the Tissue Doppler Tei index.Results Tissue Doppler Tei index in Pulmonary hypertension were significantly higher than the normal control group,while the PH patients in each group showed no significant difference（P 0.05）;Tissue Doppler Tei index in patients with right ventricle expansion and not with the expansion and the control group,Right ventricular Tei index was significant differences（P 0.05）,and differences between the two groups was not significant.Conclusion（1）Tissue Doppler Tei index is a new simple and accurate Doppler index in assessing right ventricular funtion with PH.（2）Tissue Doppler Tei index was not Affected by the right ventricular pressure overload and right ventricular morphology.