Overview of Diagnosis and Management of Placenta Accreta Spectrum

Abstract

Background:Placenta accreta spectrum rates are rising. Placenta accreta prevalence was reported in observational surveys from the 1970s and 1980s to range between 1 in 2,510 and 1 in 4,017, compared with a rate of 1 in 533 from 1982 to 2002.The increasing incidence of placenta accrete is likely multi factorial, but partly due to factors such as the increasing number of cesarean deliveries, particularly since the areas of abnormal placental invasion are almost always in the area of the previous hysterotomy.Accurate antenatal diagnosis of PAS has been demonstrated to improve maternal outcomes, allowing appropriate risk assessment and planned delivery in a tertiary referral center with an experienced multidisciplinary team.Several population studies revealed that PAS was undiagnosed in half of the cases in the general population, even though antenatal diagnostic accuracy in a series from experienced centers approaches 95%