[妊娠11.0至13.6周胎儿心肌性能指数评估的可能性]
[The possibility of evaluation of the myocardial performance index in fetuses at 11,0 to 13,6 week of gestation].
作者信息
Szymkiewicz-Dangel Joanna, Hamela-Olkowska Anita, Własienko Paweł, Jalinik Katarzyna, Czajkowski Krzysztof
机构信息
Poradnia Perinatologii i Kardiologii Perinatalnej, II Katedra i Klinika Połoznictwa i Ginekologii AM w Warszawie.
出版信息
Ginekol Pol. 2007 Mar;78(3):218-22.
OBJECTIVES
To assess myocardial performance index (Tei index) for left and right ventricle in fetuses at 11.0 to 13.6 week of gestation.
MATERIAL AND METHODS
Flow velocity waveforms of mitral, tricuspid, aortic and pulmonary valves were obtained. The Tei index for the left ventricle (Tei LV) was calculated in 55, and for the right ventricle (Tei RV) in 27 fetuses.
RESULTS
The value of Tei LV ranged from 0.28 to 0.59, mean 0.41 +/- 0.08, and for Tei RV from 0.23 to 0.56, mean 0.37 +/- 0.11. There was no statistically important correlation either between Tei index and both ventricles or gestational age and fetal heart rate. The possibility to measure Tei index increased with the progress of the pregnancy. There remains a significant correlation between Tei LV and Tei RV values.
CONCLUSIONS
Tei index may be useful for the assessment of fetal myocardial performance in the first trimester of pregnancy. Tei index is independent of gestational age and fetal heart rate. It is easier to measure the Tei index for the left ventricle than for the right one.
目的
评估妊娠11.0至13.6周胎儿左、右心室的心肌性能指数（Tei指数）。
材料与方法
获取二尖瓣、三尖瓣、主动脉瓣和肺动脉瓣的流速波形。计算55例胎儿的左心室Tei指数（Tei LV）和27例胎儿的右心室Tei指数（Tei RV）。
结果
Tei LV值范围为0.28至0.59，平均为0.41±0.08；Tei RV值范围为0.23至0.56，平均为0.37±0.11。Tei指数与双心室、孕周和胎儿心率之间均无统计学上的显著相关性。随着妊娠进展，测量Tei指数的可能性增加。Tei LV和Tei RV值之间仍存在显著相关性。
结论
Tei指数可能有助于评估妊娠早期胎儿的心肌性能。Tei指数独立于孕周和胎儿心率。测量左心室的Tei指数比测量右心室的更容易。
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