Abstract: Objective To study diagnosis and treatment of CSP (cesarean scar pregnancy, CSP). Methods 180 cases diagnosed CSP were collected between March 2012 to September 2014 in our hospital , and the patients were divided into two groups according to different treatments. 150 cases in group A were conducted direct line of ultrasound-guided curettage. 30 cases in group B were conducted ultrasound-guided curettage followed methotrexate (MTX) and mifepristone treatment. Color ultrasound, β-HCG, success rate, bleeding and hospital stay time were compared between the two groups. Results 168 of 180 patients were diagnosed before treatment, and the other 12 patients were diagnosed by bleeding during or after surgery. Open surgery was the best clinical treatment method, and it had shorter hospital stay, the difference was statistically significant (P<0.05). Conclusion Color ultrasound is applied in clinical diagnosis of CSP mainly, once CSP is diagnosed, pregnancy requires immediate termination. Crtettage followed MTX and mifepristone are used for patients with stable conditions, while patients with serious illness can use open surgery.

Key words: cesarean section, scar pregnancy, methtrexate, curettage