ArticleImmunity, inflammation and disease2026
A Retrospective Analysis of Pregnancy Outcomes Following Frozen Embryo Transfer in Patients With Persistent Chronic Endometritis: A Five-Year Single-Center Study.
Article in Immunity, inflammation and disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThis study aimed to evaluate the pregnancy outcomes of frozen embryo transfer (FET) in patients with persistent chronic endometritis (PCE).
methods186 patients were stratified into three groups: Cured CE (CCE), Cured Persistent CE (CPCE), and Still Persistent CE (SPCE). Only the first post-treatment FET cycle per patient was analyzed.
resultsAmong women aged 20-48, the biopsy-based prevalence of CE and PCE was 14.23% and 1.30%, respectively. The SPCE group underwent more antibiotic treatments and endometrial pathology examinations, with a higher proportion of GnRH-a + HRT cycles compared to the CCE and CPCE groups. Clinical pregnancy rates were 41.67%, 37.21%, and 52.17%, while live birth rates were 31.67%, 30.23%, and 43.48% for the CCE, CPCE, and SPCE groups, respectively. No statistically significant differences were observed among the groups. Multivariate analysis confirmed that AMH (aOR 1.135; 95% CI 1.005-1.282) and pre-transfer endometrial thickness (aOR 1.259; 95% CI 1.07-1.49) are significantly associated with clinical pregnancy.
conclusionOur exploratory findings suggest that PCE may not necessarily impair FET outcomes under individualized management. Ovarian reserve and endometrial thickness appeared to be more robust predictors of success than histologic persistence in this cohort. Due to the small PCE sample size, these results are hypothesis-generating and warrant validation in larger prospective trials.
trial registrationThis study is registered with China Medical Research Online (Registration Number: MR-44-24-022293, www.medicalresearch.org.cn).
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