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目的:探讨聚焦超声消融手术（FUAS）联合负压吸引术治疗包块型剖宫产术后子宫瘢痕妊娠（CSP）的临床效果以及影响出血量和再入院的相关因素。方法:回顾性分析2014年1月至2020年12月在中南大学湘雅三医院经FUAS治疗后行宫腔镜指导下的负压吸引术的88例包块型CSP患者的临床资料，分析FUAS联合负压吸引术治疗包块型CSP的治疗结果及影响术中出血量和再入院的相关因素。结果:所有患者均一次完成FUAS治疗；FUAS治疗后，所有病灶均出现明显的坏死无灌注区，病灶血流信号显著减少。负压吸引术中出血量的中位数为20 ml（范围：5~950 ml），其中13例（15%，13/88）患者出血≥200 ml，15例（17%，15/88）患者术后再次入院手术治疗。月经复潮时间为（28±8）d（范围：18~66 d），人绒毛膜促性腺激素β亚单位水平降至正常时间为（22±6）d（范围：7~59 d）。病灶血流（n OR=5.280，95%n CI为1.335~20.858，n P=0.018）及病灶最大径（n OR=1.060，95%n CI为1.010~1.120，n P=0.030）是出血量的危险因素。病灶最大径（n OR=1.055，95%n CI为1.005~1.108，n P=0.030）及宫腔深度（n OR=1.583，95%n CI为1.015~2.471，n P=0.043）是患者再入院的影响因素。FUAS治疗中及治疗后均无肠管及神经损伤等严重并发症发生，无一例患者切除子宫。n 结论:FUAS联合宫腔镜指导下负压吸引术治疗包块型CSP初步证实安全有效，病灶血流及病灶最大径是影响出血量的危险因素，病灶最大径及宫腔深度是影响再入院的危险因素。“,”Objective:To investigate the clinical effect of focused ultrasound ablation surgery (FUAS) combined with suction curettage for mass-type cesarean scar pregnancy (CSP) and to analyze the influencing factors of vaginal bleeding and readmission.Methods:From January 2014 to December 2020, 88 patients with mass-type CSP were treated by FUAS combined with suction curettage in the Third Xiangya Hospital of Central South University. The clinical results and the influencing factors of bleeding and readmission for mass-type CSP were analyzed.Results:All the patients underwent one time FUAS treatment successfully. Immediately after FUAS treatment, color Doppler ultrasound showed obvious necrosis and no perfusion area in all lesions, and the blood flow in the mass-type CSP tissue significantly decreased. The median volume of blood loss in the procedure was 20 ml (range: 5-950 ml). Thirteen patients (15%, 13/88) had vaginal bleeding≥200 ml, and 15 patients (17%, 15/88) were hospitalized again. The average time for menstruation recovery was (28±8) days (range: 18-66 days). The average time needed for serum human chorionic gonadotropin-beta subunit to return to normal levels was (22±6) days (range: 7-59 days). The risk of large vaginal bleeding of patients were related to the blood supply of the mass (n OR=5.280, 95%n CI: 1.335-20.858, n P=0.018) and the largest diameter of the mass (n OR=1.060, 95%n CI: 1.010-1.120, n P=0.030). The risk of readmission were related to the largest diameter of the mass (n OR=1.055, 95%n CI: 1.005-1.108, n P=0.030) and the depth of the uterus cavity (n OR=1.583, 95%n CI: 1.015-2.471, n P=0.043). No serious complications such as intestinal and nerve injury occurred during and after FUAS treatment.n Conclusions:FUAS combined with suction curettage is safe and effective in treating patients with mass-type CSP through this preliminary study. The volume of vaginal bleeding are associated with the blood supply of the mass and the largest diameter of the mass, the risk of readmission are related to the largest diameter of the mass and the depth of the uterus cavity.