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【目的】探讨止血带联合子宫下段横向“U”字缝合术在凶险型前置胎盘（PPP）剖宫产术中止血的效果及临床应用价值。【方法】将本院因PPP行剖宫产术的患者共53例，按单双号分为两组，观察组27例患者采用止血带环扎联合子宫下段横向“U”字缝合术止血，对照组26例患者常规手术方式，比较两组手术时间、术中出血量、子宫切除率及感染病率。【结果】观察组患者术中出血量少于对照组患者，差异具有统计学意义（ P ＜0．05）。观察组患者子宫切除率少于对照组患者，差异具有统计学意义（ P ＜0．05）。【结论】PPP剖宫产术中止血带环扎联合子宫下段横U字缝合术，能明显减少出血，降低子宫切成率，值得临床推广。“,”Objective]To explore the clinical application of tourniquet plus lower uterine segment trans‐verse U word suture in the treatment of pernicious placenta previa during cesarean section .[Methods]A total of 53 patients undergoing cesarean section for pernicious placenta previa were divided into observation ( n =27) and control ( n=26) groups according to odd/even numbers .The observation group achieved hemostasis with tourniquet plus lower uterine segment transverse U‐figure suture while the control group underwent routine procedures .The parameters of operative duration ,bleeding volume ,uterine resection rate and infection rate were compared for two groups .[Results]The bleeding volume and hysterectomy rate of observation group were less than those of control group (both P <0 .05) .[Conclusion]For pernicious placenta previa during cesarean section ,combined use of uterine hemostatic belt plus U‐figure suture may significantly reduce bleeding volume and uterine resection rate .And it is worthy of wider popularization .