Intrauterine fetal monitoring(IUFM)is to evaluate the intrauterine situation by monitoring the fetal heart in real time and combining the changes of fetal heart rate after uterine contraction and fetal movement.With the change of China's fertility policy,the number of elderly pregnant women and the number of pregnant women with complications and comorbidity increased.Improving the accuracy of IUFM is conducive to the safety of mother and fetus.IUFM during pregnancy includes fetal heart monitoring(FHM)and uterine contraction.At present,there are two types of uterine contractions monitoring:tocodynamometry(TOCO)via transcorporeal contraction pressure monitoring and electrohysterogram(EHG)via the body surface uterus myoelectricity.This article will start from FHM.
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