Respondek M, Wilczyński J, Kawa D
Zakładu Diagnostyki Obrazowej CZMP.
Ginekol Pol. 1993 Mar;64(3):133-8.
39 normal fetal heart examinations were evaluated since 20 week of gestation to term, and Doppler blood flow was analysed for mitral and tricuspid valves. The measurements were done always in good 4 chamber view and qualitative and quantitative analysis were performed, in terms of describing E and A waves and maximal velocity against gestational age. In all of the cases between 20 and 34 weeks of gestation there were type E < A Doppler waveform, and since 35 week of gestation there was also type E = A. There were only 2 cases with type E > A, both near term. This Doppler waveform may depends on maturity of the fetal myocardium. The maximal velocity for the atrio-ventricular valves did not correlated with gestational age. The average max value for mitral valve was 43 +/- 10 cm/s and for tricuspid valve 50 +/- 11 cm/s (p < 0.01).
对39例自妊娠20周直至足月的正常胎儿心脏检查进行了评估，并对二尖瓣和三尖瓣的多普勒血流进行了分析。测量总是在良好的四腔心视图下进行，并进行定性和定量分析，描述E波和A波以及相对于胎龄的最大速度。在所有妊娠20至34周的病例中，存在E型＜A型多普勒波形，自妊娠35周起也出现了E型=A 型。只有2例为E型＞A 型，均接近足月。这种多普勒波形可能取决于胎儿心肌的成熟度。房室瓣的最大速度与胎龄无关。二尖瓣的平均最大值为43±10cm/s，三尖瓣为50±11cm/s（p＜0.01）。
