Inclusion Criteria:  Pregnant women over 18 years of age. History of previous cesarean section and anterior placenta previa Patients with prenatal diagnosis by ultrasound or MRI of PAS, regardless of the suspected degree of severity of the disease. Requirement for surgical management of placental accreta on a scheduled basis. Patients without active vaginal bleeding in the period immediately before surgery (Patients entering the operating room without active bleeding).  Exclusion Criteria:  Women without previous living children.