cesarean section

In recent years, the method of induction of labor in the second trimester has gradually increased, and the operation is simple, easy, and safe. The cesarean section has been used less or not. Treatment of diseases: placenta previa Indication 1. There are children who require simultaneous sterilization. 2. 16 to 24 weeks of gestation, other methods of induction of labor can not be effective and must be terminated immediately. 3. Repeated vaginal bleeding during pregnancy, b-ultrasound diagnosis of central placenta previa. 4. There is a large scar on the uterine wall (history of cesarean section or uterine fibroids removal). Contraindications 1. The acute phase of various diseases. 2. Skin infection at the surgical site or severe skin disease. 3. Severe neurosis. 4. The body temperature twice within 3 hours before surgery within 37.5 °C. Preoperative preparation Same as general abdominal surgery, plus a medium uterus curette. A catheter is required before surgery. Surgical procedure 1, according to abdominal surgery routine disinfection, laying a sterile towel list. 2, abdominal wall incision length and shortness depending on the size of the uterus, the thickness of the abdominal wall is determined, the principle is to deliver the carcass is appropriate, generally 5-7cm, should not be too small. 3, the uterus incision is best in the lower part of the uterus (longitudinal or transverse), with large gauze to protect the intestine and uterine incision. Cut the myometrium first, do not puncture the membrane, use two tissue forceps or placenta forceps to clamp the edge of the uterus incision to reduce bleeding. 4. The surgeon uses the right hand to extend between the fetal sac and the uterine wall, and remove the fetal sac until the placenta is completely peeled off. If the fetus is large and cannot be completely escorted, the fetus can be punctured with a small mouth. The amniotic fluid is sucked up with a suction device. The surgeon extends into the uterine cavity by hand and holds the fetus with one foot or double enough to hold the breech. Out. If the baby is difficult to deliver, the brain can be aspirated from the large hole of the fetal head pillow and the fetal head can be delivered. At this time, uterine muscle layer 10U was injected into the myometrium to promote uterine contraction. 5, clean the uterine cavity, use the oval clamp to dry the small cavity dry gauze to wipe the uterine cavity, if the placenta, fetal membrane peeling is not complete, you can use a large curette to cure the peripheral wall of the uterine cavity, or attract with a suction device. 6. Suture the deep muscle layer with the No. 1 gut intermittently and suture the muscle layer continuously. Check the incision without bleeding, absorb the liquid in the abdominal cavity, and suture the layers of the abdominal wall.