Caesarean scar ectopic pregnancy: Evolution from medical to surgical management.

Background: Caesarean scar ectopic pregnancy (CSP) is defined as blastocyst implantation occurring in a uterine scar. The incidence of CSP continues to rise with increasing caesarean section rates; prevalence is estimated to be 1:1800 to 1:2226 of all pregnancies. To date, over 30 treatment regimens have been published.