Is placenta previa dangerous?

It is very hard for a mother to carry a baby for ten months, and she will encounter various worrying problems during these ten months. For example, placenta previa. The placenta is a flat disc-shaped structure composed of the fetal chorion and the maternal uterine decidua. It is attached to the uterine wall and connected to the fetus through the umbilical cord. It is the only energy reservoir for material exchange between the fetus and the mother. What are the dangers of placenta previa?

The fetus can obtain the nutrients and oxygen necessary for development from the mother through the placenta, and excrete metabolites through the placenta. B-type ultrasound tomography images can clearly show the position of the uterine wall, fetal head, cervix and placenta, and the type of placenta previa can be further clarified based on the relationship between the edge of the placenta and the internal os of the cervix. The accuracy rate of placental positioning is over 95%, and it can be checked repeatedly. It has been adopted both at home and abroad in recent years, and has basically replaced other methods. Because placenta previa can cause insufficient blood supply to the placenta, the fetus cannot absorb enough nutrients and its development is restricted. Placenta previa bleeding mostly occurs in late pregnancy and can easily lead to premature birth.

The perinatal mortality rate of placenta previa is also high. The fetus may die in utero due to maternal shock, intrauterine distress, severe hypoxia, or die after birth due to poor vitality of premature birth. The placental detachment surface of placenta previa is close to the external os of the cervix, and bacteria can easily invade the placental detachment surface from the vagina. In addition, the mother is anemic and has a weak constitution, so infection is prone to occur.

This method can be used before 36 weeks of pregnancy, when the fetal weight is less than 2500g, the amount of vaginal bleeding is not much, the pregnant woman is in good general condition, and the fetus is alive.

1. Absolute bed rest; inhibit uterine contractions; correct anemia and give blood transfusion if necessary;. Antibiotics prevent infection and promote fetal lung maturity.

2. Closely observe the patient's condition and conduct relevant auxiliary examinations, such as B-ultrasound examination, fetal maturity examination, etc. If there is heavy bleeding, repeated bleeding, or labor is imminent, terminate the pregnancy as appropriate.

Notice:

1. Absolutely stay in bed and choose foods that are high in protein, calories, vitamins, and iron;

2. Pay attention to uterine contractions and vaginal bleeding when urinating frequently; when the vagina seems to be broken and discharges fluid, pay attention to distinguish whether it is bleeding;

3. Lie on the left side, count the fetal movements, listen to the fetal heart rate regularly, and inhale oxygen intermittently;

4. During prenatal examination, the fetal position should be checked gently to avoid stimulating uterine contractions and inducing vaginal bleeding;