At the moment of being diagnosed with pregnancy, I believe many couples are extremely happy. As some unexpected situations arise during pregnancy, some couples may gradually become worried, such as the fetus being too small or too large. Although the incidence of low pi in pregnant women is not high, the harm is significant. So, what does low PI mean for pregnant women?
Low PI in pregnant women indicates low umbilical blood flow. The average normal value of umbilical blood flow at 24 weeks of pregnancy is 3.5, with a maximum of 4.25. If it exceeds 4.25, it indicates abnormality. At 24 weeks of pregnancy, the pulsatility index is between 1.12 ± 0.17, while the resistance index is between 0.66 ± 0.07. After 34 weeks of pregnancy, if the pulsatility index is higher than 1 or 7 and the resistance index is higher than 0.7, it is easy to cause fetal distress.
When the umbilical blood flow of pregnant women is low, it is easy to cause fetal hypoxia, so it is important to pay attention to fetal movement. If the low umbilical blood flow is not very serious, pregnant women can sleep in a left lateral position more often. If there is no relief, oxygen therapy is needed.
In addition, pregnant women should regularly go to the hospital to measure fetal movement and fetal heart rate, preferably hospitalized for treatment, so as to timely understand the condition of the fetus and receive timely treatment.
Generally, if the umbilical blood flow is low and mild, the probability of fetal hypoxia is relatively low. Under the treatment of doctors, fetuses can usually develop normally. If the low umbilical blood flow is severe, it is easy to cause fetal hypoxia, which can not only lead to cerebral palsy, but also cause fetal death.
