Journal
REPRODUCTIVE BIOMEDICINE ONLINE
Volume 36, Issue 1, Pages 78-83Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.rbmo.2017.09.008
Keywords
Chronic endometritis; Endometrial hyperplasia; Prevalence; Recurrent implantation failure; Recurrent pregnancy loss; Stage of cycle
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In this retrospective cohort study, a consecutive series of 1551 premenopausal women underwent hysteroscopy and endometrial biopsy. Chronic endometritis was diagnosed when plasma cell in endometrial tissue was detected by immunohistochemistry using CD138 epitope. The overall prevalence of chronic endometritis in the population studied was 24.4% The prevalence was significantly increased in the following conditions: recurrent implantation failure (40.8%; P < 0.001), abnormal uterine bleeding (40.7 %; P < 0.001), endometrial hyperplasia (50.0%, P < 0.05) and submucosal fibroid (59.1%; P < 0.001) than those without the respective conditions. The prevalence in specimens obtained from the proliferative phase (26.0%) was significantly higher (P < 0.05) than those from the luteal phase (17.5%). Logistic regression analysis showed three significant factors affecting the prevalence, in descending order of importance: clinical presentation, endometrial hyperplasia and stage of the cycle from which the specimen was obtained. The confounding variables identified in this study may account for the wide range of published prevalence of the condition, and should be considered in the analysis of prevalence data relating to chronic endometritis. (C) 2017 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
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