脉冲多普勒Tei指数在评价小儿重症肺炎心功能的研究

Pulsed Doppler Tei index in the evaluation of pediatric severe pneumonia heart function

目的 探讨脉冲多普勒Tei指数在小儿重症肺炎心功能中的状态,为临床治疗及护理提供依据.方法 对60例健康体检小儿（正常组）及33例重症肺炎的患儿（肺炎组）行超声心动图检查,通过M型测量左心室射血分数,左心室短轴缩短率；通过脉冲多普勒测量左右心室等容收缩期时间、等容舒张期时间及射血时间及Tei指数的测定,两组数据进行对比分析.结果 肺炎组左右心室Tei指数均高于正常组,两者比较差异有统计学意义（P＜0.01）；肺炎组右心室Tei指数高于左心室Tei指数,两者比较差异有统计学意义（P＜0.01）；肺炎组与正常组的左心室射血分数及左心室短轴缩短率比较,两者差异无统计学意义（P＞0.05）.结论 脉冲多普勒检测Tei指数是评价小儿重症肺炎心功能的一种新的较可靠方法,肺炎组左右心室Tei指数均高于正常组,在临床治疗及护理时应注意对肺炎患儿心功能的保护.

Objective To discuss the state of pediatric severe pneumonia heart function using pulsed Doppler Tei index,and provide evidence for clinical diagnosis and treatment.Methods 60 healthy children （normal group） and 33 children with severe pneumonia （pneumonia group） were examined with echocardiography.Left ventricular ejective fraction and fraction shortening were measured by color M-mode Doppler echocardiography; left and right ventricular isovolumic contraction time,isovolumic relaxation time,ejection time and Tei index were measured by pulsed Doppler.The data of two groups were compared and analyzed.Results Left and fight ventricular Tei indexes of pneumonia group were significantly higher than those of normal group,with statistical significant differences between two groups （P ＜ 0.01）.Right ventricular Tei index was higher than left ventricular Tei index in pneumonia group,with statistical significant difference （P ＜ 0.01）.There were no statistically significant differences in left ventricular ejective fraction and fraction shortening between two groups （P ＞ 0.05）.Conclusions Pulsed Doppler Tei index is a new and reliable method in the evaluation of pediatric severe pneumonia heart function.Left and right ventricular Tei indexes of pneumonia group were significantly higher than those of normal group.Heart function in children with pneumonia should be protected during the clinical diagnosis and treatment.