Intrauterine adhesions treated with hysteroscopic adhesiolysis and subsequent obstetric outcome: A retrospective matched cohort study

Author:

Hong Wei1,Wu Zhiping1,Li Li1,Wang Beiying1,Li Xiaocui1ORCID

Affiliation:

1. Shanghai Key Laboratory of Maternal Fetal Medicine, Shanghai Institute of Maternal–Fetal Medicine and Gynecologic Oncology, Shanghai First Maternity and Infant Hospital, School of Medicine Tongji University Shanghai China

Abstract

AbstractObjectiveTo examine whether a history of hysteroscopic adhesiolysis (HA)‐treated intrauterine adhesions (IUAs) was associated with an increased risk of adverse obstetrical outcomes in subsequent pregnancies.DesignRetrospective cohort study.SettingA tertiary‐care hospital in Shanghai, China.PopulationA cohort of 114 142 pregnant women who were issued an antenatal card and received routine antenatal care in Shanghai First Maternity and Infant Hospital, between January 2016 and October 2021.MethodsFrom the cohort of 114 142 pregnant women, each woman with a history of HA‐treated IUA prior to the current pregnancy (n = 780) was matched with four women without a history of IUAs (n = 3010) using propensity score matching. The matching variables were maternal age and parity, mode of conception, pre‐pregnancy body mass index and prior history of abortion.Main outcome measuresPregnancy complications, placental abnormalities, postpartum haemorrhage and adverse birth outcomes.ResultsCompared with women with no history of IUAs, women with a history of HA‐treated IUAs were at higher risk of pre‐eclampsia (RR 1.69, 95% CI 1.23–2.33), placenta accreta spectrum (RR 4.72, 95% CI 3.9–5.73), placenta praevia (RR 4.23, 95% CI 2.85–6.30), postpartum haemorrhage (RR 2.86, 95% CI 1.94–4.23), preterm premature rupture of membranes (RR 3.02, 95% CI 1.97–4.64) and iatrogenic preterm birth (RR 2.86, 95% CI 2.14–3.81). Those women were also more likely to receive cervical cerclage (RR 5.63, 95% CI 3.95–8.02) during pregnancy and haemostatic therapies after delivery (RR 2.17, 95% CI 1.75–2.69). Moreover, we observed that the RRs of those adverse obstetrical outcomes increased with the increasing number of hysteroscopic surgeries.ConclusionsThis study found that a history of HA‐treated IUAs, especially a history of repeated HAs, was associated with an increased risk of adverse obstetrical outcomes.

Funder

Natural Science Foundation of Shanghai Municipality

Publisher

Wiley

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