gynecology and obstetrics
Placenta Accreta
Diagnosis of Placenta Accreta
Ultrasonography for women at risk Thorough evaluation of the uteroplacental interface by ultrasonography (transvaginal or transabdominal) is warranted in women at risk; a consensus on definition of markers has been published. If there is diagnostic uncertainty, ultrasonography can be repeated periodically, beginning at 20 to 24 weeks gestation ( Diagnosis reference ). If B-mode (gray-scale) ultrasonography is inconclusive, MRI or Doppler flow studies may help. During delivery, placenta accreta is suspected if The placenta has not been delivered within 30 minutes of the infant's delivery. Attempts at manual removal cannot create a plane of separation. Placental traction causes large-volume hemorrhage. When placenta accreta is suspected, laparotomy with preparation for large-volume hemorrhage is required. 1.Shainker SA, Coleman B, Timor-Tritsch IE, et al: Special Report of the Society for Maternal-Fetal Medicine Placenta Accreta Spectrum Ultrasound Marker Task Force: Consensus on definition of markers and approach to the ultrasound examination in pregnancies at risk for placenta accreta spectrum [published correction appears inAm J Obstet Gynecol2021 Jul;225(1):91].Am J Obstet Gynecol224(1):B2-B14, 2021. doi:10.1016/j.ajog.2020.09.001 