Objective  To explore the effect of intrauterine balloon placement combined with ultrasonic removal of intrauterine foreign body in patients with cesarean scar pregnancy (CSP).

  Methods  Totally 80 CSP patients were selected and divided into experimental group (n=42) and control group (n=38) according to therapeutic plan. The control group was treated with ultrasonic removal of intrauterine foreign body by hysteroscopy, and the experimental group was treated with intrauterine balloon placement on the basis of the control group. Vaginal bleeding, curative effect and complications were compared between the two groups.

  Results  The amount of intraoperative blood loss and the bleeding within 24 hours after operation in the experimental group were significantly less than those in the control group (P < 0.05). The hospitalization time, recovery time of β-HCG to normal level after operation and menstruation recovery time in the experimental group were significantly shorter than those in the control group (P < 0.05). There were no significant differences in operation-related residual rate of uterine cavity and the second curettage rate between two groups (P>0.05). The incidence of complications in the experimental group was significantly lower than that in the control group (P < 0.05).

  Conclusion  Intrauterine balloon placement combined with ultrasonic removal of intrauterine foreign body is effective and safe in the treatment of patients with CSP.