Regional placenta previa - a threat to the normal course of pregnancy
The placenta is the organ that plays the most importantrole in the development of the fetus. The placenta begins to form at the moment when the fetal egg is attached to the uterine wall, and already by the twelve weeks of pregnancy it takes on nutritional, respiratory, excretory, protective and hormonal functions.
Usually the placenta is located in the area of the uterine fundus oron the back of it with the transition to the side walls, less often - along the front wall. But there is such a pathology as placenta previa. The placenta, located in the lower part of the uterus, overlaps its inner pharynx partially or completely. Depending on this, a complete (central), partial and low placenta previa are distinguished.
The main reason forplacenta previa, is that the mucous membrane of the uterus has undergone changes that prevent proper fixation of the fertilized egg. These changes can arise as a result of the transferred inflammatory process, the use of intrauterine spirals, endometrial disorders due to abortion or intrauterine curettage, uterine fibroids. Of all cases where doctors diagnose marginal placenta previa, 75% are in women who are pregnant repeatedly. Inflammation of the internal organs in pregnant women can also affect the improper fixation of the embryo.
Clinical symptom, which is defined asthe marginal presentation of the placenta, and the rest of its incorrect location, is a bleeding from the genital tract, accompanied by pain. It can occur at different periods of pregnancy - in the first trimester, and before the very birth. The cause of bleeding lies in the partial detachment of the placenta. The walls of the uterus during pregnancy are stretched, and the placenta is not capable of such stretching, as a result, it detaches.
If you do not take medication in time,the fetus will begin to experience hypoxia, and the pregnant woman may develop significant anemia. Sometimes bleeding can even cause a fatal outcome. Therefore, if a gynecologist reveals a lateral, full or marginal presentation of the placenta, it is necessary to follow his instructions clearly. Focusing on the complaints of a pregnant woman and the results of ultrasound, he will prescribe bed rest, preparations for uterine contraction, in case of frequent repeated bleeding - hospitalization and treatment in the hospital. The delivery is most likely to be done by cesarean section, only the marginal location of the placenta leaves room for natural delivery.
