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Volume 27, Issue 142, December 2023

Diagnostic results of prenatal ultrasonography and placenta previa accreta following caesarean delivery: Systematic review

Joumaa Habeb Alsoleman¹, Ali Alamri², Hamzah Hilmi Sindi³, Faisal Talal Alsharif⁴, Amal Radhi Alharbi⁵, Khalid Mohammed Alenazi⁶

¹Obstetrics and Gynecology Consultant, Maternity Hospital King Saud Medical City, Riyadh, Saudi Arabia
²Obs & Gyne Resident, National Guard Hospital, Riyadh, Saudi Arabia
³Obs & Gyne Resident, King Saud Medical City, Riyadh, Saudi Arabia
⁴Obs & Gyne Registrar, Saudi Arabia
⁵Head of Ultrasound Department Supervision, King Saud Medical City, Riyadh, Saudi Arabia
⁶Head of Department Respiratory Therapy, National Guard Hospital, King Abdulaziz Medical City, Riyadh, Saudi Arabia

ABSTRACT

This study's aim is to assess the diagnostic accuracy of ultrasound imaging in detecting placenta previa accreta in expectant mothers who already had a caesarean section. We conducted searches of Pubmed, Embase, and the Cochrane Library with the goal of gathering studies published between 2008 and 2022 that meet our eligability criteria. All authors thoroughly reviewed and assessed eight studies. The final selection consisted of three retrospective and five prospective cohort studies. These cohort studies comprised a total of 1251 pregnancies with either placenta previa or a low-lying placenta. Two authors included both low-lying and placenta previa in their screening group of women who had previously undergone a caesarean delivery. The distribution of previous caesarean deliveries among women who presented with a confirmed placenta previa accreta at delivery was described by five authors. In order to bolster the ultrasound diagnosis of accreta placentation, four authors used magnetic resonance imaging. For the diagnosis, the other authors used colour Doppler imaging. Only one author reported utilising translabial ultrasonography, compared to three who reported transvaginal ultrasound use.

Keywords: Placenta previa, placenta accreta, cesarean delivery, ultrasound, prenatal diagnosis