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[The cervix at term--an ultrasonographic study].

W Eppel1, B Schurz, P Frigo

  • 1I. Universitätsfrauenklinik.

Zeitschrift Fur Geburtshilfe Und Perinatologie
|November 1, 1991
PubMed
Summary

Transvaginal sonography reveals cervical changes during late pregnancy. The cervix shortens and thickens with uterine contractions, then reforms during relaxation phases.

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Area of Science:

  • Obstetrics and Gynecology
  • Reproductive Medicine
  • Medical Imaging

Background:

  • Cervical changes are crucial indicators in late pregnancy.
  • Understanding these dynamic changes aids in monitoring pregnancy progression.

Purpose of the Study:

  • To investigate cervical morphological changes during the 40th and 41st gestational weeks.
  • To compare these changes between nulliparous and multiparous women.

Main Methods:

  • Transvaginal sonography using a 5 MHz probe.
  • Measurement of cervical length, width, and internal os.
  • Inclusion of 37 nulliparous and 36 multiparous women with uncomplicated pregnancies.

Main Results:

  • Cervical shortening and thickening were observed during painless uterine contractions (p < 0.05).
  • The internal os remained constant and open.
  • Cervical reformation occurred during uterine relaxation phases.

Conclusions:

  • Transvaginal sonography effectively visualizes dynamic cervical remodeling in late pregnancy.
  • Cervical behavior during contractions and relaxation is consistent.
  • Further research could explore the clinical implications of these findings.

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