Do is fetal monitor fetal monitoring tools, it is a kind of can by ultrasonic doppler principle and fetal heart rate current changes.Fetal monitor is used for detecting fetal heart rate, eeg, contractions of a tester, it also can reflect the pattern of the fetal cardiac activity, intrauterine condition monitoring is the pregnant woman one of the most common way.
The change of the fetal heart is the normal development of the fetal central nervous system, can be very intuitive to show a baby reserve ability and health.Electronic heart monitor continuous detection of heart rate and the change of the pressure of the uterus, can provide real-time information between heart and productivity, and artificial auscultation in contrast, it won't be affected by contractions, you can see the momentary cardiac changes.
Doctors can from the baseline and different cardiac monitoring in the graph, access to timely and accurate information, so that not only can real-time situation assessment, the fetus to dystocia processing, can also detect fetal reserve function and will happen serious symptoms such as umbilical cord entanglement.So do the fetal guardianship for vaginal delivery tolerance has a certain estimated value.So electronic cardiac monitoring has a quick, convenient, clear and high accuracy merit, accepted more easily to pregnant women, is one of the important measures to improve obstetrics quality, worthy of pregnant women try and application.
In the process of production, each period appeared abnormal CTG can be as a signal of fetal intrauterine hypoxia.But with initiative and twenty-five percent to twenty-five percent of its false positive rate, thus the status of the placental function may have an effect on the fetus.For now, obstetric doctors are looking for a new detection method and the CTG common application, and monitoring the actual status of the fetus.
The most common are fetal scalp pH value determination, amniotic fluid monitoring, ultrasound biophysical score, artery blood flow velocity test, and so on.Many medical experts think that fetal monitoring in the process of production of the most reliable way is to blend with initiative and biochemical tests.This is done to find the abnormal situation, and identify whether CTG fetus whether there will be a lack of oxygen, so as to reduce the false positive rate of CTG, eliminate unnecessary intervention, production to reduce the risk of early fetal mortality and neonatal illness.
CTG forecast fetus is in good condition is much higher than the accuracy of predicting fetal problems, when encountered with initiative positive, also need to refer to other data, such as the age of the amniotic fluid is contaminated, pregnant women, pregnancy period, etc., but also the progress of the production process and B ultrasonic monitoring data, so as to make the best deal.