Sonographic Detection of Placenta Accreta in The Second and third Trimesters of Pregnancy

Abstract

Background: the term morbid adherent placenta suggests a nontypical placental implantation into the uterine barrier and was utilized to express placental accreta, percreta, and increta. Placental accreta (PA) is a placental where the placenta villi stick on straightly to the myometrium. Objective: this work aim to evaluate the specificity, sensitivity, and diagnosis accurateness of ultrasound (US) in placental accretes diagnosing in the 2nd and 3rd trimesters of gestation. Patients and Methods: This was a prospective research that was performed at obstetrics and gynecology departments of both El Hussein and Kafr El-Sheikh Hospitals during the period between January 2020 till July 2020 aiming for evaluating the accurateness of US in the placenta accreta diagnosing. Results: The US sensitivity was (100 %), specificity was (85 %), NPV was (100 %) and PPV was (90.9%) with accuracy of (94%) in placental accreta diagnosing. Conclusion: Ultrasonography has satisfactory sensitivity for placental accreta diagnosing; but specificity doesn't seem to be good as concluded in other reports. US still the most sensitive and frequently utilized scanning modality for the placental accreta diagnosing as it is precise, cheap, and noninvasive and save time. This modality has excellent popularity as it is extensively accessible, patients friendly, and comparatively cheap.

Evaluation and comparison of sensitivity and specificity of ultrasonography in placenta accreta diagnosis in the second and third trimesters

“…This is a popular technique because it is patient-friendly, available, and quite inexpensive. [ 16 ]…”

“…The sensitivity of ultrasound findings varies in the different studies and is reported between 33% and 100% and specificity is also widely different. [ 16 17 18 19 20 ] Recent studies have made the prenatal diagnosis in the weeks of 18-22 and at the age of 32-34 weeks of pregnancy; they undergo ultrasound again. All cases were followed for outcome till term.…”