Chen Guan-chun, Wu Feng-lin, Duan Xue-yun, Zheng Sui-jin, Fu Wen-jin, Zhang Xiu-guo, Yang Wei-min
Department of Ultrasound, Dongguan Houjie Hospital Affiliated to Guangdong Medical College, Dongguan 523945, China.
Nan Fang Yi Ke Da Xue Xue Bao. 2010 May;30(5):1031-3.
To investigate the value of Tei index and the sensitivity of left versus right ventricular Tei index in evaluating the fetal cardiac function in pregnancy-induced hypertension syndrome in the third trimester.
Fetal echocardiograms were performed in 30 women with pregnancy-induced hypertension (PIH) syndrome and 55 with normal pregnancy of the third trimester. Tei index was obtained by calculating the ratio of the isovolumic time (isovolumic contraction and relaxation time) to the ejection time of the left and right ventricle. Comparisons of the Tei index were made between the PIH group and control group, and also between the left and right ventricles in each group.
Significant difference was found in the left and right ventricular Tei index between PIH group and control group. No difference was noted between the left and right ventricular Tei index in the PIH group.
Tei index is a useful indicator in evaluating fetal global cardiac function, for which purpose the left ventricular Tei index can be as sensitive as the right ventricular Tei index.
探讨Tei指数及左、右心室Tei指数在评估孕晚期妊娠期高血压综合征胎儿心功能中的价值及敏感性。
对30例妊娠期高血压（PIH）综合征孕妇和55例孕晚期正常孕妇进行胎儿超声心动图检查。通过计算左、右心室等容时间（等容收缩和舒张时间）与射血时间的比值获得Tei指数。比较PIH组与对照组之间以及每组左、右心室Tei指数。
PIH组与对照组左、右心室Tei指数存在显著差异。PIH组左、右心室Tei指数无差异。
Tei指数是评估胎儿整体心功能的有用指标，就此而言左心室Tei指数与右心室Tei指数一样敏感。
