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Antenatal screening for circumvallate placenta.

Shunji Suzuki1

  • 1Department of Obstetrics and Gynecology, Japanese Red Cross Katsushika Maternity Hospital, 5-11-12 Tateishi, Katsushika-ku, Tokyo, 124-0012, Japan. czg83542@mopera.ne.jp.

Journal of Medical Ultrasonics (2001)
|June 10, 2016
PubMed
Summary

Prenatal ultrasound can help screen for circumvallate placenta by measuring placental thickness. This method aids in identifying pregnancies at risk for serious perinatal complications.

Keywords:
antenatal screeningcircumvallate placentaplacental thickness

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Area of Science:

  • Maternal-Fetal Medicine
  • Diagnostic Imaging in Obstetrics
  • Perinatology

Background:

  • Circumvallate placenta is a condition that can lead to significant perinatal complications.
  • Early prenatal detection of circumvallate placenta is crucial for managing potential risks.
  • Current diagnostic methods for circumvallate placenta may have limitations in routine screening.

Purpose of the Study:

  • To evaluate the efficacy of antenatal ultrasonographic screening for circumvallate placenta.
  • To determine if placental thickness measurement can identify cases of circumvallate placenta.
  • To assess the correlation between placental thickness and the presence of circumvallate placenta.

Main Methods:

  • A prospective study involving 722 unselected pregnant patients undergoing routine ultrasound at 18-21 weeks' gestation.
  • Measurement of placental thickness at its thickest point.
  • Comparison of placental thickness between 11 deliveries with completely circumvallate placenta and 711 unaffected controls.

Main Results:

  • Average placental thickness was significantly greater in cases of circumvallate placenta (2.74 ± 0.53 cm) compared to controls (2.22 ± 0.36 cm, P = 0.01).
  • A placental thickness greater than 3.0 cm was associated with a 19.4% likelihood of circumvallate placenta at delivery (P < 0.01).
  • Ultrasonographic measurement of placental thickness demonstrated potential as a screening tool.

Conclusions:

  • Measurement of placental thickness during routine prenatal ultrasound is a useful screening method for circumvallate placenta.
  • This non-invasive technique can help identify pregnancies at higher risk for circumvallate placenta.
  • Further investigation may refine the utility of placental thickness in predicting perinatal complications associated with circumvallate placenta.