EC Gynaecology

Introduction

The last 30 years have witnessed the dramatic increase in the incidence of placenta accreta spectrum (PAS) disorders from 0.12% to 0.31%. The spectrum of abnormal placental invasion ranges from the subclinical findings of adherent placental basal plate with the myometrial fibres to the substantial presentation of placenta percreta. Irving in 1937, first described placenta accreta as the failure of separation of the placenta from uterine wall following delivery of the fetus leading to the often used term morbid placental adherence. Various terminologies has been applied to this condition, however, recent guidelines suggested the adoption of term” Placenta accrete spectrum (PAS)”, including accreta, increta and percreta.