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Nomogram Incorporating Multimodal Transvaginal Ultrasound Assessment at 20 to 24 Weeks' Gestation for Predicting Spontaneous Pre-term Delivery in Low-Risk Women

International journal of women's health, 2022-03, Vol.14, p.323 [Peer Reviewed Journal]

COPYRIGHT 2022 Dove Medical Press Limited ;ISSN: 1179-1411 ;EISSN: 1179-1411 ;DOI: 10.2147/IJWH.S356167

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  • Title:
    Nomogram Incorporating Multimodal Transvaginal Ultrasound Assessment at 20 to 24 Weeks' Gestation for Predicting Spontaneous Pre-term Delivery in Low-Risk Women
  • Author: Jiang, Lingli ; Peng, Lei ; Rong, Miaoling ; Liu, Xiaozhi ; Pang, Qinxia ; Li, Huaping ; Wang, Ying ; Liu, Zhou
  • Subjects: Pregnant women
  • Is Part Of: International journal of women's health, 2022-03, Vol.14, p.323
  • Description: Background: The majority of women who experience spontaneous preterm delivery (SPTD) have low-risk, asymptomatic pregnancies with a cervical length (CL) [greater than or equal to] 25mm and no clear risk factors. Despite the fact that cervical elastography is a potential tool for predicting SPTD, there is currently no feasible solution to make a reliable prediction for preventing SPTD. Objective: The aim of this study was to construct a nomogram including multimodal transvaginal ultrasound parameters during the second trimester to predict SPTD in low-risk women. Methods: This multi-center study enrolled 1260 women with singleton pregnancies between 20 and 24 weeks' gestation. CL and cervical elastography data were obtained when they were undergoing the second-trimester anomaly scan. Univariate and multivariate Logistic regression were utilized to screen predictors independently related to SPTD from the maternal characteristics and multimodal ultrasound data. Then construct a nomogram to determine the likelihood of SPTD in pregnant women. Results: A total of 66 pregnancies in the training cohort (7.8%, 66/842) and 37 pregnancies (8.9%, 37/418) in the validation cohort ended in SPTD. Age, uterine curettage, CL, and strain in the anterior lip of internal os were the independent predictors of SPTD (P < 0.001, < 0.001, = 0.007, and < 0.001, respectively). These predictors constituted a nomogram to predict the probability of SPTD for a pregnant woman in her second trimester. It showed good discrimination (C-index = 0.898 and 0.839), calibration (P = 0.258 and 0.115), and yielded net benefits both in the training and validation cohorts. Conclusion: The nomogram including data of multimodal transvaginal ultrasound at 20 to 24 weeks' gestation is expected to identify women with SPTD in the low-risk, asymptomatic population. Keywords: cervical length measurement, elasticity imaging techniques, nomograms, pregnancy trimester, second, premature birth
  • Publisher: Dove Medical Press Limited
  • Language: English
  • Identifier: ISSN: 1179-1411
    EISSN: 1179-1411
    DOI: 10.2147/IJWH.S356167
  • Source: Open Access: DOAJ Directory of Open Access Journals
    Open Access: PubMed Central
    Geneva Foundation Free Medical Journals at publisher websites
    AUTh Library subscriptions: ProQuest Central
    ROAD: Directory of Open Access Scholarly Resources
    Dove Press Free
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