Lower uterine segment thickness in assessing whether cesarean scar pregnancy patients could be treated with suction curettage.

To find a suitable indicator in selecting appropriate patients with cesarean scar pregnancy (CSP) for treatment with ultrasound-guided suction curettage alone. A retrospective review of all women with CSP treated at the Tongji Hospital, Wuhan, China, between 1 January 2013 and 31 December 2015 was conducted. The women were grouped according to the following management options: ultrasound-guided suction curettage only (Group 1); combination with other therapeutic options (Group 2). The clinical characteristics and outcomes were analyzed. Of 174 patients with lower uterine segment myometrium thickness ≥0.2 cm, 93 (53.4%) patients underwent ultrasound-guided suction curettage only, 81 (46.6%) patients underwent a combination with other therapeutics. Clinical characteristics of women who underwent ultrasound-guided suction curettage alone did not significantly differ from those who were treated with combination. Intraoperative blood loss and length of stay differed significantly between the two groups. In appropriate CSP cases with lower uterine segment myometrium thickness more than 0.2 cm, ultrasound-guided suction curettage appears to be a reliable treatment option producing satisfying success rates, lower blood loss, and a shorter hospital-stay compared to combined therapies.