What Is a Marginal Placenta Previa?
Marginal placenta previa, the first bleeding occurred later, mostly in 37 to 40 weeks of pregnancy or after labor, the amount is also small.
Marginal placenta previa
Right!- Chinese name
- Marginal placenta previa
- Phenomenon
- The first bleeding occurred later
- Pregnancy
- 37 40 weeks
- Location
- Inside the edge of the palace
- Marginal placenta previa, the first bleeding occurred later, mostly in 37 to 40 weeks of pregnancy or after labor, the amount is also small.
- A type of placenta previa, marginal placenta previa, at 20 weeks and 32
The placenta normally attaches to the posterior, anterior, or lateral walls of the uterine body. If the placenta is attached to the lower part of the uterus or covers the inner mouth of the cervix, the placenta is lower than the exposed part of the fetus. Placenta previa is one of the main causes of bleeding in late pregnancy and a serious complication during pregnancy. More common in menstrual women, especially multi-maternal.
It is not clear yet. May be related to the following factors:
The endometrium is not sound, and the operations of puerperal infection, procreation, upper ring, multiple curettage, and cesarean section, etc., cause endometritis, endometrial defects, and insufficient blood supply. In order to take in sufficient nutrients, placenta compensates Sexually expand the area and stretch to the lower uterus.
The pregnancy eggs are stunted and the trophoblast has not developed to the stage of implantation when it reaches the uterine cavity.
The placenta is too large, as most pregnancy discs often extend to the lower uterus.
- In the third trimester or in labor, painless recurrent vaginal bleeding is the main symptom of placenta previa, and occasionally occurs in the 20th week of pregnancy. Vaginal bleeding occurs sooner or later, the number of recurrent episodes, and the amount of bleeding has a lot to do with the type of placenta previa.
An abdominal examination is the same as a normal pregnancy. Too much blood loss in the fetus due to hypoxia and distress. Severe cases of fetal death in the palace. Parturients have paroxysmal contractions. If you hear a hair-like noise that coincides with the mother's pulse above or on both sides of the pubic symphysis, you can consider that the placenta is located in front of the lower part of the uterus.
The accuracy rate of placenta positioning by B-ultrasound is over 95%, and it can be repeated.
The principle of treatment of placenta previa is to control bleeding, correct anemia, prevent infection, and correctly choose the time and method to end childbirth. In principle, the mother's safety is the main factor. Under the premise of the mother's safety, try to avoid premature delivery of the fetus to reduce its mortality.
(1) Expectant therapy 36 weeks before pregnancy, the fetus weighs less than 2500g, the amount of vaginal bleeding is small, the pregnant woman's general condition is good, and the surviving fetus can take expectant therapy.
1. Absolute bed rest can be given sedatives, such as Lumina 0.03, or Lining Ning 10mg, or diazepam 5mg, orally 3 times a day.
2. Inhibition of contractions, Shuchuanling 2.4-4.8