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A universal transvaginal cervical length screening program for preterm birth prevention.

Kelly M Orzechowski1, Rupsa C Boelig, Jason K Baxter

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|August 28, 2014
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Summary
This summary is machine-generated.

Universal transvaginal ultrasonogram cervical length screening identified a low incidence of short cervix (1.1%) and did not alter spontaneous preterm birth rates. Protocol adherence for short cervix management needs improvement.

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Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Diagnostic Imaging

Background:

  • Shortened cervical length is a risk factor for spontaneous preterm birth.
  • Universal screening aims to identify at-risk pregnancies for timely intervention.

Purpose of the Study:

  • To assess the incidence of cervical length ≤20 mm in a universal screening program.
  • To evaluate adherence to management protocols for cervical length <25 mm.
  • To compare spontaneous preterm birth rates between screened and unscreened women.

Main Methods:

  • Prospective cohort study of women with singleton gestations (18 0/7 to 23 6/7 weeks).
  • Universal transvaginal ultrasonogram cervical length screening over 18 months.
  • Management protocol for cervical length <25 mm; primary outcomes: incidence of cervical length ≤20 mm and protocol adherence; secondary outcomes: spontaneous preterm birth rates.

Main Results:

  • 72.3% of eligible women underwent screening; incidence of cervical length ≤20 mm was 1.1%.
  • Protocol deviations occurred in 43% of women with cervical length <25 mm.
  • No significant difference in spontaneous preterm birth rates (<37, <34, or <32 weeks) between screened and unscreened groups.

Conclusions:

  • Universal cervical length screening identified 1.1% of women with short cervix (≤20 mm).
  • Significant protocol deviations (43%) were observed in managing short cervix (<25 mm).
  • Screening did not impact spontaneous preterm birth rates, suggesting potential for protocol refinement or reassessment of screening efficacy.