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Subject Area

Neurology

Article Type

Original Study

Abstract

Objectives To show the role of pulsatility index (PI) of uterine artery Doppler in the diagnosis of placenta accreta in patients with placenta previa. Background Placenta accrete occurs in the complete or partial absence of the decidua basalis. In clinical practice, nonseparation of the placenta at the time of delivery leads to massive blood transfusion, disseminated intravascular coagulability, injury to the bladder and intestine, and urgent need for hysterectomy. Patients and methods A diagnostic accuracy test study was done on 54 patients with placenta previa. Ultrasound examination (two-dimensional grayscale and color Doppler) via transabdominal and transvaginal approach and the PI of uterine artery Doppler was done to these patients. Data were collected and tabulated. Results Significant changes in PI of uterine artery Doppler were detected. The accreta group had significantly lowered PI (0.62 ± 0.20) than the term group (0.89 ± 0.23) (P < 0.001). Conclusion From our study, we concluded that the accuracy of loss of normally presented retroplacental clear zone was the most important ultrasound criteria in the diagnosis of placenta accreta among patients who had a previous cesarean section with a placenta previa overlying previous uterine scar.

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