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Introduction <p>Cervical cerclage is an acceptable procedure in women with cervical insufficiency and is known to be effective in the prevention of preterm delivery. However, limited data exist regarding long-term health outcomes among offspring exposed to cerclage during pregnancy. Since the presence of a foreign body during pregnancy may change the vaginal microbiome, we aimed to study whether a cervical cerclage is associated with long-term infectious morbidity of the offspring.</p> Study design <p>A retrospective population-based cohort study was performed at a tertiary medical center, including all singleton deliveries between the years 1991–2021. Long-term infectious morbidity was compared among offspring after pregnancies with and without cervical cerclage. The diagnoses of infectious morbidities were defined based on ICD-9 codes as recorded in community clinics and hospitalization files. A Kaplan–Meier survival curve was utilized to evaluate the cumulative incidence. A Cox proportional hazards model was used to control for confounders.</p> Results <p>Out of 356,356 offspring included in the analysis, 0.4% (<i>n</i> = 1416) were following pregnancies with cervical cerclage. Unadjusted analyses demonstrated no significant difference in total infectious morbidity between the groups (OR 1.0, 95% CI 0.9–1.1; <i>p</i> = 0.369, Table 1). Kaplan–Meier analysis showed no difference in cumulative incidence (log-rank test <i>P</i>-value = 0.19, Fig.&#xa0;1). In the primary analysis, cerclage was not associated with long-term infectious morbidity. However, in a secondary model, after adjustment for confounders including gestational age, obesity and diabetes, cerclage exposure was associated with a modest reduction in the risk of long-term infectious morbidity (adjusted HR 0.9, 95% CI 0.87–0.99, <i>p</i> = 0.036).</p> Conclusion <p>In this large population-based cohort, cervical cerclage was not associated with increased long-term infectious morbidity in offspring. A modest association with reduced infectious morbidity was observed after adjustment for confounding factors. These findings should be interpreted cautiously given the observational design and potential residual confounding.</p>

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Offspring long-term infectious morbidity following pregnancies with cervical cerclage

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月27日

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  • Amir Snir,
  • Polina Schwarzman,
  • Tamar Wainstock,
  • Eyal Sheiner

摘要

Introduction

Cervical cerclage is an acceptable procedure in women with cervical insufficiency and is known to be effective in the prevention of preterm delivery. However, limited data exist regarding long-term health outcomes among offspring exposed to cerclage during pregnancy. Since the presence of a foreign body during pregnancy may change the vaginal microbiome, we aimed to study whether a cervical cerclage is associated with long-term infectious morbidity of the offspring.

Study design

A retrospective population-based cohort study was performed at a tertiary medical center, including all singleton deliveries between the years 1991–2021. Long-term infectious morbidity was compared among offspring after pregnancies with and without cervical cerclage. The diagnoses of infectious morbidities were defined based on ICD-9 codes as recorded in community clinics and hospitalization files. A Kaplan–Meier survival curve was utilized to evaluate the cumulative incidence. A Cox proportional hazards model was used to control for confounders.

Results

Out of 356,356 offspring included in the analysis, 0.4% (n = 1416) were following pregnancies with cervical cerclage. Unadjusted analyses demonstrated no significant difference in total infectious morbidity between the groups (OR 1.0, 95% CI 0.9–1.1; p = 0.369, Table 1). Kaplan–Meier analysis showed no difference in cumulative incidence (log-rank test P-value = 0.19, Fig. 1). In the primary analysis, cerclage was not associated with long-term infectious morbidity. However, in a secondary model, after adjustment for confounders including gestational age, obesity and diabetes, cerclage exposure was associated with a modest reduction in the risk of long-term infectious morbidity (adjusted HR 0.9, 95% CI 0.87–0.99, p = 0.036).

Conclusion

In this large population-based cohort, cervical cerclage was not associated with increased long-term infectious morbidity in offspring. A modest association with reduced infectious morbidity was observed after adjustment for confounding factors. These findings should be interpreted cautiously given the observational design and potential residual confounding.