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The variation of fetal heart rhythm towards delivery

机译：胎儿心律对交付的变化

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In this paper, we investigate the variation of the fetal heart rate as we approach delivery. The fetal heart rate is affected by several factors, including the uterine contractions, the amount of oxygen in blood, the sex of the fetus, etc. We isolate specific biochemical markers or other measurable characteristics and compare plots expressing the average fetal heart rate versus the time remaining until the delivery, for subjects with different values in these characteristics. Our motivation is to study the effect of different values, related to a biochemical marker or characteristic, on the heart rate of the fetus. One important observation that came out from this study is the increased discriminating power presented between different groups of subjects, appearing in the time period before the delivery, where the heart works under unusual pressure. In some cases, even though the average fetal heart rate associated to each group can not be discriminated during the early stages, the differentiation becomes possible before delivery, since the group that is expected to react better under pressure achieves to keep the heart rate in higher levels.
机译：在本文中，我们调查胎儿心率的变化，因为我们接近送货。胎儿心率受到若干因素的影响，包括子宫收缩，血液中的氧气量，胎儿的性别等。我们分离特异性生化标志物或其他可测量的特征，并比较表达平均胎儿心率的地块与剩余时间直到递送，对于这些特征中具有不同值的受试者。我们的动机是研究不同价值的影响，与生物化学标志物或特征有关的胎儿的心率。从本研究中出现的一个重要观察是在不同群体之间提出的歧视能力增加，在交付前的时间段，心脏在不寻常的压力下工作。在某些情况下，即使在早期阶段不能被区分与每组相关的平均胎儿心率，在递送之前也可以进行分化，因为预期在压力下更好地反应的基团实现以保持心率更高水平。

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