[Anesthetic management of a cervicoisthmic pregnancy patient undergoing cesarean section].

Cervicoisthmic pregnancy is a rare obstetric condition that is potentially dangerous for the pregnant woman due to a high risk of abortion or preterm delivery. We here present a 29-year-old woman with cervicoisthmic pregnancy undergoing cesarean section at full-term. Under combined epidural and spinal anesthesia, an infant was delivered alive, and the placenta was preserved without any forces to detach from the uterus. The surgery was completed without massive bleeding. The retained placenta was treated with methotrexate infusion into the uterus from the 6th day as well as uterine artery embolization at the 51th day postpartum. She subsequently required manual removal of the retained placenta under combined epidural and spinal anesthesia with only small bleeding. She was discharged from our hospital uneventfully. Meticulous preparation for massive bleeding and long-term treatment of the retained placenta are important in the perioperative management for cesarean section of a full-term patient with cervicoisthmic pregnancy.