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Am J Obstet Gynecol. 2005 Sep;193(3 Pt 1):739-45.

Endometrial microbial colonization and plasma cell endometritis after spontaneous or indicated preterm versus term delivery.

Author information

1
Department of Obstetrics and Gynecology, Center for Research in Women's Health, University of Alabama at Birmingham, Birmingham, AL, USA.

Abstract

OBJECTIVE:

This study was undertaken to determine whether endometrial microbial colonization or plasma cell endometritis is increased after spontaneous versus indicated preterm delivery or a spontaneous term delivery.

STUDY DESIGN:

Postpartum, endometrial specimens were obtained after a spontaneous (mean 83, +/- 17.6 days) or indicated (mean 83, +/- 16.7 days) preterm delivery before 34 weeks' gestation and after a spontaneous term delivery (mean 82, +/- 15.7 days; P=.980). Cultures for aerobic and anaerobic bacteria, Trichomonas vaginalis, and genital mycoplasmas were performed. Histologic endometritis was defined as the presence of plasma cells.

RESULTS:

The study population (n=820) was 71% black, 29% white, 69% unmarried, and 31% had less than 12 years of education. Endometrial cultures were positive for at least 1 microorganism in 82% of the women. No significant difference in positive endometrial cultures were observed among women after a spontaneous versus an indicated preterm delivery (85% vs 79%, P=.102), or a spontaneous preterm versus a spontaneous term delivery (85% vs 81%, P=.123). Plasma cell endometritis was present in 39% of 506 specimens sufficient for histologic examination and was also similar in the three groups (P=.160).

CONCLUSION:

Microbial colonization of the endometrium and plasma cell endometritis are similar 3 months after spontaneous or indicated preterm or term births. Therefore, chronic infection and inflammation of the endometrium (documented at 3 months postpartum) do not appear to be risk factors for subsequent delivery in women with a prior spontaneous delivery less than 34 weeks' gestation.

PMID:
16150268
DOI:
10.1016/j.ajog.2005.02.128
[Indexed for MEDLINE]

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