Abstract
AbstractAimChronic endometritis (CE) is a disease of continuous and subtle inflammation characterized by the infiltration of plasma cells in the endometrial stromal area. Although the clinical significance of CE has been thought in clinical practice for a long time because it is either asymptomatic or presents with subtle symptoms, recent studies have shown the potential adverse effects of CE on fertility. In the present review, we focus on the concept, diagnosis, etiology, pathophysiology, diagnosis, impact on reproduction and treatment for it to understand CE.MethodsThe published articles were reviewed.ResultsThe prevalence of CE has been found to be 2.8–56.8% in infertile women, 14–67.5% in women with recurrent implantation failure (RIF), and 9.3–67.6% in women with recurrent pregnancy loss. Microorganisms are thought to be a main cause of CE, since antibiotic treatment has been reported to be an effective therapy for CE. Common bacteria are frequently detected in the uterine cavity of CE patients by microbial culture. In CE endometrium, the prevalence of immune cells and decidualization has been reported to be modified, and these modifications are thought to adversely affect fertility. The gold standard for the diagnosis of CE is the histological detection of plasma cells in the stromal area of the endometrium in endometrial specimens, although universally accepted criteria for the diagnosis of CE have not been determined. The treatment currently thought to be most effective for the recovery of fertility in CE is administration of oral antibiotics. Patients whose CE has been cured have been reported to have a higher ongoing pregnancy rate, clinical pregnancy rate, and implantation rate compared with patients with persistent CE.ConclusionCE greatly affects implantation and impairs fertility. Antibiotic administration is an effective therapeutic option. Pregnancy rate in in vitro fertilization is improved when CE is cured by antibiotic.
Topics

No keywords indexed for this article. Browse by subject →

References
86
[2]
Rotterdam H "Chronic endometritis. A clinicopathologic study" Pathol Annu (1978)
[3]
Yorukoglu K "Chronic nonspecific endometritis" Gen Diagn Pathol (1998)
[4]
Michels TC "Chronic endometritis" Am Fam Physician (1995)
[12]
Greenwood SM "Chronic endometritis: Morphologic and clinical observations" Obstet Gynecol (1981)
[19]
CarreG NaudC. Tissier: Recherches sur la flore intestinale des nourrissons (état normal et pathologique) (in French) (Dissertation). Université de Paris Paris 1900.
[20]
Uterine Microbiota: Residents, Tourists, or Invaders?

James M. Baker, Dana M. Chase, Melissa M. Herbst-Kralovetz

Frontiers in Immunology 10.3389/fimmu.2018.00208
[22]
Heinonen PK "Anatomic sites of upper genital tract infection" Obstet Gynecol (1985)
[23]
Hemsell DL "Endometrial bacteria in asymptomatic, nonpregnant women" J Reprod Med (1989)
[35]
Live birth rate following oral antibiotic treatment for chronic endometritis in infertile women with repeated implantation failure

Kotaro Kitaya, Hidehiko Matsubayashi, Yukiko Takaya et al.

American Journal of Reproductive Immunology 10.1111/aji.12719
[45]
Fang RL "Barcoded sequencing reveals diverse intrauterine microbiomes in patients suffering with endometrial polyps" Am J Transl Res (2016)
[47]
The diagnosis of chronic endometritis in infertile asymptomatic women: a comparative study of histology, microbial cultures, hysteroscopy, and molecular microbiology

Inmaculada Moreno, Ettore Cicinelli, Iolanda Garcia-Grau et al.

American Journal of Obstetrics and Gynecology 10.1016/j.ajog.2018.02.012

Showing 50 of 86 references

Metrics
232
Citations
86
References
Details
Published
Mar 06, 2019
Vol/Issue
45(5)
Pages
951-960
License
View
Authors
Funding
Japan Society for the Promotion of Science Award: 16716425
Cite This Article
Fuminori Kimura, Akie Takebayashi, Mitsuaki Ishida, et al. (2019). Review: Chronic endometritis and its effect on reproduction. Journal of Obstetrics and Gynaecology Research, 45(5), 951-960. https://doi.org/10.1111/jog.13937