The duration of gestation at previous induced abortion and its impacts on subsequent births: A nationwide registry‐based study

Kc, Situ; Gissler, Mika; Klemetti, Reija

doi:10.1111/aogs.13788

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…The basic clinical characteristics of pregnant women included in our model were smoking or passive smoking, gravidity and history of hypertension. These factors may impair the function of trophoblast cells to varying degrees, and affect blood vessel generation and remodeling, thereby influencing the establishment and maintenance of a stable fetal supply of nutrition and oxygen through the placenta [25][26][27] . However, clinical characteristics alone exhibited a relatively poor predictive performance for FGR.…”

Section: Discussionmentioning

confidence: 99%

Construction of prediction model for fetal growth restriction during first trimester in an Asian population

Zheng,

Ji,

Wang

et al. 2024

Ultrasound in Obstet & Gyne

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ObjectiveTo construct a prediction model for fetal growth restriction (FGR) during the first trimester (11‐13+6 weeks) and evaluate its screening performance.MethodsSingle pregnancies who underwent the first trimester (11‐13+6 weeks) ultrasound screening at the Affiliated Suzhou Hospital of Nanjing Medical University from January 2019 to April 2022 were selected as prospective study subjects. Basic clinical information, ultrasound indicators, and serum indicators of pregnant women were collected. Fetal weight assessment was based on the fetal growth curve of the Southern Chinese population, and the definition of FGR was based on standards developed through the Delphi process. The least absolute shrinkage and selection operator (LASSO) regression method was used to select optimal features and analyze the predictive value of each indicator in the model. Finally, the model was constructed, and its discrimination, effectiveness, and clinical usefulness were evaluated.ResultsA total of 1188 pregnant women were included in the final statistical analysis, of whom 108 had FGR. LASSO regression identified 7 predictive features, including a history of maternal hypertension, maternal smoking or passive smoking history, number of pregnancies, uterine artery pulsatility index (UtA PI), ductus venosus pulsatility index (DV PIV), placental growth factor multiples of the median (PlGF MOM), and soluble fms‐like tyrosine kinase‐1 (sFlt‐1) MOM. The nomogram prediction model constructed based on the above predictors predicted FGR more accurately, and the area under the curve (AUC) in the validation cohort was 0.82 (95%CI: 0.74‐0.90). The calibration curve and Hosmer‐Lemeshow test demonstrated good calibration of the model, while the clinical decision curve and clinical impact curve conclusively support its practical value in the clinical setting.ConclusionThe multi‐index prediction model constructed during the first trimester is feasible and has good predictive value.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Construction of prediction model for fetal growth restriction during first trimester in an Asian population

Zheng,

Ji,

Wang

et al. 2024

Ultrasound in Obstet & Gyne

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show abstract

“…The following variables, representing baseline clinical characteristics of women available in the hospital EMR, were identified as potential confounding factors that could exert an influence on the labor process and birth outcomes based on previous studies, and were adjusted for statistical analyses: age (years), 13 parity (primipara/multipara), 14 history of spontaneous or induced abortion(s) (no/yes), 15 body mass index (BMI) at the admission for birth, 16 gestational hypertensive disorders (no/yes), 17 gestational diabetes mellitus (no/yes), 18 Group B streptococci (GBS) positive(no/yes), 19 other preexisting maternal chronic illness and pregnancy complications (no/yes) such as thyroid disease, 20 oligohydramnios, 21 ovarian cyst, 22 hepatitis B seropositivity 23 and polyhydramnios, 24 intrapartum fever (no/yes), 25 gestational age at birth (<28 weeks/28–34 weeks/<37 weeks/37+ weeks), 26 premature rupture of membranes (no/yes) 27 and induction of labor (no/yes) 28 . An additional confounding variable considered in this study was birthweight ≥4 kg (no/yes), as the size of baby may affect the vaginal birth process and outcomes 29…”

Section: Methodsmentioning

confidence: 99%

Association of maternal SARS‐CoV‐2 infection at the time of admission for delivery with labor process and outcomes of vaginal birth: A cohort study

Chen,

Acharya,

et al. 2023

Acta Obstet Gynecol Scand

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IntroductionThis study aimed to investigate the impact of maternal SARS‐CoV‐2 infection at the time of admission for delivery on labor process and outcomes of vaginal birth.Material and methodsA cohort study was carried out at the Obstetrics Department of Anhui Provincial Hospital, China, where universal reverse transcriptase polymerase chain reaction (RT‐PCR) testing for SARS‐CoV‐2 infection was introduced for all women admitted for labor and delivery from December 1–31, 2022. Women were divided into positive and negative groups based on the test result. All women having a singleton vaginal birth were included in final analysis. The effect of SARS‐CoV‐2 positivity on labor process and outcomes of vaginal birth was estimated by regression analyses.ResultsAmong a total of 360 women included, 87 had a positive SARS‐CoV‐2 test and 273 a negative test. Women in the positive group had an increased likelihood of having longer labor (median 9.3 vs 8.3 hours; sB [log‐transformed] 0.19; 95% confidence interval [CI] 0.09–0.28), episiotomy (39.1% vs 23.8%; adjusted odds ratio [aOR] 2.31; 95% CI 1.27–4.21), grade III meconium‐stained amniotic fluid (19.5% vs 7.0%; aOR 2.52; 95% CI 1.15–5.54) and postpartum hospital stay exceeding 37 hours (58.6% vs 46.5%; aOR 1.71; 95% CI 1.00–2.91). They had reduced rates exclusive breastfeeding (26.7% vs 39%; aOR 0.21; 95% CI 0.09–0.46) as well as mixed feeding (46.5% vs 52.2%; aOR 0.28; 95% CI 0.13–0.60) at 1 week postpartum. No significant differences were observed in other aspects of labor process and birth outcomes, including the uptake of labor analgesia, postpartum hemorrhage (>500 mL) or neonatal outcomes.ConclusionsA positive maternal SARS‐CoV‐2 test in labor among women having vaginal birth was associated with a slightly longer duration of labor, increased likelihood of episiotomy, increased incidence of grade III meconium‐stained amniotic fluid, a longer postpartum hospital stay and a lower rate of breastfeeding 1 week postpartum. However, it did not have an adverse impact on other birth outcomes.

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The effect of previous induced abortion history on the assisted reproduction outcomes

Zhao

Zhang

et al. 2023

Arch Gynecol Obstet

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The duration of gestation at previous induced abortion and its impacts on subsequent births: A nationwide registry‐based study

Cited by 7 publications

References 28 publications

Construction of prediction model for fetal growth restriction during first trimester in an Asian population

Construction of prediction model for fetal growth restriction during first trimester in an Asian population

Association of maternal SARS‐CoV‐2 infection at the time of admission for delivery with labor process and outcomes of vaginal birth: A cohort study

The effect of previous induced abortion history on the assisted reproduction outcomes

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