Skip to main content
SMFM 2025 Pregnancy Meeting Main banner
Final Program


Program Book
Icon Legend
Presentation Icons
Additional registration fee required
Additional registration fee required
CME Credit Offered
CME Credit Offered
Abstract Award
Abstract Award
Poster Icons
Additional registration fee required
Additional registration fee required
Faculty have requested this content not be shared on social media
Faculty have requested this content not be shared on social media
CME Credit Offered
CME Credit Offered
Abstract Award
Abstract Award
Back

Poster Session 1

(200) Assessing the risk of chorioamnionitis by type of suture used for cerclage

Thursday, January 30, 2025
10:30 AM – 12:30 PM  

    Submitting Author and Presenting Author(s)

  • Frank I. Jackson, DO (he/him/his)

    Maternal Fetal Medicine Fellow
    Northwell
    New Hyde Park, New York, United States

    • Coauthor(s)

  • Moti Gulersen, MD, MSc

    Assistant Professor, Obstetrics and Gynecology
    Sidney Kimmel Medical College of Thomas Jefferson University
    Philadelphia, Pennsylvania, United States

  • Rupsa C. Boelig, MD, MS

    Assistant Professor
    Sidney Kimmel Medical College, Thomas Jefferson University
    Philadelphia, Pennsylvania, United States

  • Vincenzo Berghella, MD (he/him/his)

    Professor, Director
    Sidney Kimmel Medical College of Thomas Jefferson University
    Philadelphia, Pennsylvania, United States

  • Matthew J. Blitz, MD

    Director of Clinical Research, Maternal-Fetal Medicine, Northwell; Program Director, Maternal Fetal Medicine Fellowship, South Shore University Hospital
    Northwell
    Bay Shore, NY, United States

Objective: A recent randomized trial comparing cerclage suture type identified a possible increased rate of chorioamnionitis with braided suture; however this was evaluated as one of many secondary outcomes.  We aimed to assess whether braided sutures are associated with increased odds of chorioamnionitis in pregnancies undergoing cerclage.

Study Design:

This is a retrospective cohort study of singleton gestations who underwent a cerclage within a large healthcare system from 01/2019 – 06/2023. Patients with missing delivery data or suture type were excluded. The primary outcome was incidence of chorioamnionitis at delivery and was compared between patients who underwent cerclage with a monofilament suture (monofilament polypropylene (Prolene)) compared to those with a braided suture (ethylene terephthalate (Mersilene) or braided polyester suture (Tri-Cron)). Multivariate logistic regression was performed to adjust for the following confounders: indication for cerclage, gestational age at cerclage placement, and nulliparity. Data were presented as adjusted odds ratios (aOR) with 95% confidence intervals (CI).

Results:

Of the 719 patients included, 200 (28%) had a monofilament polypropylene suture, 519 (72%) had braided suture. Baseline characteristics were similar except obesity (Table). The odds of chorioamnionitis was similar between the monofilament vs braided sutures (4/200 [2.0%] vs. 16/519 [3.1%]; aOR 1.36 [0.54-4.14].

Conclusion: This study suggests a lower rate of chorioamnionitis than previously reported among patients with braided sutures. These findings suggest there is no difference in the rate of chorioamnionitis based on the use of braided versus monofilament sutures at time of cerclage. Currently evidence supports clinicians using their preferred suture type.