Ultrasound Indicated Cerclage in Women with Previous Late Preterm Birth
Poster #: 11
Session/Time: B
Author: Amira Elzarea
Mentor: Tetsuya Kawakita, MD
Co-Investigator(s): 1. Shaida Campbell, B.S., 2. Wave Hatton 3. Danielle Long 4. Maya Vishnia, MD 5. Lea Nehme, MD 6. Jerri Waller, MD 7. Tracey DeYoung, MD 8. Madison C. Collazo, MD 9. Monica A. Ethirajan, B.S. 10. Tetsuya Kawakita, MD, M.S.
Research Type: Clinical Research
Abstract
Introduction: Preterm birth, delivery before 37 weeks, is a leading cause of neonatal morbidity and mortality. The objective of this study is to explore the effectiveness of ultrasound cervical length screening in reducing preterm births in individuals with varying preterm birth histories (
Methods: Study Design: A retrospective cohort study Setting: Single academic institution Population: Pregnant individuals with singleton pregnancies and a history of preterm birth from January 2014 to December 2020 who underwent transvaginal ultrasound cervical length screening. Primary Outcome: The primary outcome measure was the detection of a short cervix (≤25 mm) by transvaginal ultrasound. Methods: Serial cervical length screenings were performed biweekly from 16 to 24 weeks' gestation, and cerclage was recommended for cervical lengths ≤25 mm. Relative risks (RR) with 95% confidence intervals (95%CI) were calculated using modified Poisson regression with robust variance, controlling for confounders. Further, Kaplan Meier Survival Curves were plotted, and curves were compared using log-rank test.
Results: Of 576 individuals, 437 (75.9%) had a previous GA
Conclusion: Individuals with a previous 34-36 weeks preterm births compared to those with a previous GA
