When to perform cesarean section for placenta previa

For a body position like placenta previa, cesarean section is generally used for delivery, because forcing women to have artificial delivery may cause heavy bleeding. Therefore, in order to reduce the risk of women during childbirth, cesarean section is a very good choice. However, this choice will make the woman's uterus feel very painful. So when is it appropriate to have a cesarean section for placenta previa?

At what week of placenta is it best to have a caesarean section?

1How many weeks is it best to have a cesarean section for placenta previa

36-37 weeks.

Pregnant women with placenta previa generally advocate cesarean section to end delivery. For placenta previa without vaginal bleeding, the gestational age should be extended as much as possible until the pregnancy is terminated after full term. If there is a small amount of vaginal bleeding, complete placenta previa can be delivered by cesarean section after 36 weeks of pregnancy, and partial placenta previa can be delivered by cesarean section after 37 weeks of pregnancy. If there is heavy vaginal bleeding and the fetal lungs are immature, the pregnancy can be terminated after a short period of time to promote lung maturity.

Once placenta previa causes severe bleeding and endangers the life of the pregnant woman, a cesarean section should be performed immediately regardless of the age of the fetus.

2Why do we need cesarean section for placenta previa?

Because of placenta previa, there is a risk of heavy bleeding once the cervix is ​​opened during normal delivery. Caesarean section is safer and can end delivery immediately, achieve the purpose of rapid hemostasis, reduce trauma to the fetus, reduce perinatal morbidity, and treat postpartum hemorrhage under direct vision. Cesarean section is the safest and most effective way to treat placenta previa, and it is also an emergency treatment method for severe bleeding from placenta previa.

3How to treat placenta previa

Expectant management

If placenta previa occurs, the pregnancy is less than 34 weeks and the fetus weighs less than 2.3 kg. If the pregnant mother does not have much vaginal bleeding and is in good general condition, expectant management can be adopted to inhibit uterine contractions and promote fetal lung maturity. During this period, the pregnant mother needs to rest in bed, and the specific treatment methods should follow the doctor's treatment plan.

Termination of pregnancy

If the placenta previa is severe and there is massive bleeding and shock upon admission to the hospital, or repeated bleeding near the due date, or heavy bleeding after delivery, active measures need to be taken to terminate the pregnancy.

4 What are the dangers of placenta previa

1. Hemorrhage during and after delivery. After the fetus is delivered, the contraction force of the muscles in the lower part of the uterus is poor, and the attached placenta is not easy to separate. Even after separation, postpartum hemorrhage is prone to occur because the open blood sinuses are not easy to close.

2. Anemia and infection. Most women suffer from anemia and weak constitution due to repeated bleeding, and the placenta previa detaches on the internal os of the cervix, so they are prone to infection during the postpartum period.

3. Placenta accreta. Placenta previa may occasionally be combined with placenta accreta, resulting in incomplete placental separation and heavy bleeding. Sometimes the uterus needs to be removed to save the life of the pregnant woman.

4. Poor perinatal prognosis. Excessive bleeding can lead to fetal distress or even death from lack of oxygen. Sometimes, in order to save the life of the pregnant woman or fetus, the pregnancy needs to be terminated early, resulting in an increase in the rate of premature birth.