Ultrasound detection of placenta accreta in the first trimester of pregnancy

  • سال انتشار: 1393
  • محل انتشار: International Journal of Reproductive BioMedicine، دوره: 12، شماره: 6
  • کد COI اختصاصی: JR_IJRM-12-6_008
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 558
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نویسندگان

Fatemeh Rahimi-Sharbaf

Perinatalogy Devision, Department of Obstetrics and Gynecology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Ashraf Jamal

Perinatalogy Devision, Department of Obstetrics and Gynecology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Elaheh MesdaghiniaP

Perinatalogy Devision, Department of Obstetrics and Gynecology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Masoumeh Abedzadeh- Kalahroudi

Trauma Nursing Research Center, Kashan University of Medical Sciences, Kashan, Iran

چکیده

Background: Placenta accreta is considered a life-threatening condition and the main cause of maternal mortality. Prenatal diagnosis of placenta accreta usually is made by clinical presentation, imaging studies like ultrasound and MRI in the second and third trimester.Objective: To determine accuracy of ultrasound findings for placenta accreta in the first trimester of pregnancy.Materials and Methods: In a longitudinal study 323 high risk patients for placenta accreta were assessed. The eligible women were examined by vaginal and abdominal ultrasound for gestational sac and placental localization and they were followed up until the end of pregnancy. The ultrasound findings were compared with histopathological examinations as a gold standard. The sensitivity, specificity, positive and negative predictive value of ultrasound were estimated for the first trimester and compared with other 2 trimesters in the case of repeated ultrasound examination.Results: Ultrasound examinations in the first trimester revealed that 28 cases had the findings in favor of placenta accreta which ultimately was confirmed in 7 cases. The ultrasound sensitivity and specificity for detecting placenta accreta in the first trimester was 41% [95% CI: 16.2-62.7] and 88% [95% CI: 88.2-94.6] respectively.Conclusion: Ultrasound screening for placenta accreta in the first trimester of pregnancy could not achieve the high sensitivity as second and third trimester of pregnancy.

کلیدواژه ها

Placenta accreta, Ultrasonography, Screening, Sensitivity, Specificity

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