关键词: 前置胎盘, 主动脉, 腹, 剖宫产术, 产后出血

Abstract: With the increase of cesarean section rate, the incidence of pernicious placenta previa is also increasing year by year, which leads to an uncontrolled bleeding during the childbirth, a high rate of uterus resection, and a difficulty in clinical treatment, thereby severely threatening the life of the pregnant woman. The cause of the pernicious placenta previa mainly involves with the imbalance between the uterine decidual development and the trophoblast invasion during scar formation after cesarean section. Accordingly, the ways of an effective control on the intro-partum and postpartum hemorrhage as well as of retaining the uterus of the patient is credited as the key to the success of the rescue for the pernicious placenta previa. Recent domestic and foreign physicians have explored the application of coupling the technique of abdominal aortic balloon occlusion in the cesarean section to control the risk of intraoperative bleeding and reduce the rate of hysterectomy. Although the technique of the abdominal aortic balloon occlusion is simple and easy to operate, with obvious hemostatic effect and clear surgical field, it also has many influencing factors and surgical complications. The knowledge to its value and risk is still in the stage of gradual understanding. For this end, the development process, advantages and limitations of the abdominal aortic balloon occlusion will be reviewed overall in this paper.

Key words: Placenta previa, Aorta, abdominal, Cesarean section, Postpartum hemorrhage