关键词: font-size:medium, ">凶险性前置胎盘；剖宫产；超声引导；腹主动脉下段球囊阻断术；围术期情况

Abstract: Objective： To explore the application effect of lower abdominal aorta balloon occlusion under ultrasound guidance and monitoring in cesarean section for pernicious placenta previa. Methods： 120 cases of cesarean section patients with pernicious placenta previa in our hospital from January 2014 to April 2021 were selected and divided into the study group and the control group according to random number table method， 60 cases in each group. The control group underwent routine cesarean section， and the study group performed balloon occlusion of lower abdominal aorta under ultrasound guidance and monitoring during cesarean section. Both groups were given routine anti-infection therapy after operation. The perioperative situation， intraoperative vital signs and postoperative conditions of the two groups of patients were compared. Results： The operation time of the study group was shorter than that of the control group， and the amount of blood loss， blood transfusion during operation and hysterectomy rate of the study group were lower than those of the control group（P<0.05）. Intraoperative systolic pressure fluctuations， heart rate fluctuations and blood oxygen saturation fluctuations of patients in the study group were lower than those in the control group（P<0.05）. The incidence of abnormal renal function and rate of ICU transfer of the study group were lower than those in the control group， and the hospital stay was shorter than that of the control group (P<0.05). Conclusion： Lower abdominal aorta balloon occlusion under ultrasound guidance and monitoring can stabilize the vital signs of patients with pernicious placenta previa during cesarean section， improve the perioperative and postoperative conditions of the patient， and have higher safety.
     [Key Words]

Key words: Pernicious placenta previa, Cesarean section, Ultrasound guidance, Balloon occlusion of lower abdominal aorta, Perioperative situation