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PROBLEM: To determine in women with recurrent pregnancy loss (RPL) and/or implantation failure (RIF) the prevalence of chronic endometritis (CE), systemic inflammation and autoimmunity, and whether they relate. METHOD OF STUDY: This retrospective study examined inflammatory (adiponectin, CRP, leptin, and IL6) and autoimmune (total immunoglobulins, ANA, thyroid antibodies, antiphospholipid antibodies) markers in a group of 55 women with RPL/RIF. A diagnosis of CE was reached by endometrial biopsy, demonstrating CD138-positive plasma cells on histology. The prevalence of markers of systemic inflammation and autoimmunity was compared between women with and without CE. RESULTS: Among all RPL/RIF patients, 32.7% demonstrated at least one positive inflammatory marker, 61.8% at least one autoimmune marker, and 45.5% CE. Moreover, CE patients did not differ in systematic inflammatory or autoimmune profiles from those without CE. CONCLUSIONS: Endometritis and elevated inflammatory and autoimmune markers are common in women with RPL/RIF, but endometritis cannot be predicted based on either peripheral inflammatory or autoimmune markers.
Kushnir et al. (Mon,) studied this question.