Conservative management of abnormally invasive placenta: four case reports.

Prenatal diagnosis of placenta increta and percreta is essential to avoid potentially life-threatening hemorrhage by optimizing peripartal management. Invasive placentation presents significant challenges at cesarean section even for highly skilled surgeons. In the four cases of placenta increta/percreta presented here we tried to avoid hysterectomy by leaving the placenta behind and tried to accelerate regression of placental tissue by administering methotrexate. The outcome in each of the four women was different, but no major bleeding occurred in any of the cases. Close follow-up for many weeks is mandatory.