Title

Long-term outcome of postmenopausal women with proliferative endometrium on endometrial sampling.

Publication Date

2020

Journal Title

Am J Obstet Gynecol

Abstract

BACKGROUND: Proliferative endometrium has been reported in 15% of endometrial biopsies of women aged 50 years and older. Contrary to endometrial hyperplasia, proliferative endometrium has not been associated with the risk of endometrial cancer.

OBJECTIVE: This study aimed to report on the long-term outcome of postmenopausal women who received a diagnosis of proliferative endometrium.

STUDY DESIGN: This is a retrospective cohort study of 1808 women aged 55 years and older who underwent endometrial sampling between January 1997 and December 2008. Outcome data were available through February 2018. Women with a proliferative endometrium were compared with those with an atrophic endometrium for future development of endometrial hyperplasia or cancer. A subanalysis was performed for those who presented with postmenopausal bleeding. Uni- and multivariable logistic regression analyses were used to assess for confounders.

RESULTS: In this study, 297 women (16.4%) received a diagnosis of proliferative endometrium. Furthermore, 962 women met the inclusion criteria. Among those women, 278 had a proliferative endometrium, and 684 had an atrophic endometrium. Women with a proliferative endometrium were younger (61.2 vs 64.5 years; P

CONCLUSION: One of the 6 postmenopausal women who underwent endometrial sampling had a proliferative endometrium. Furthermore, 11.9% of women developed endometrial hyperplasia or cancer, a 4-fold greater incidence than women with an atrophic endometrium. The findings of this study suggest that long-term monitoring is warranted for women with postmenopausal bleeding and a proliferative endometrium histology. Further studies are needed to examine if a treatment is required to negate the risk of unopposed estrogen.

Volume Number

223

Issue Number

6

Pages

896

Document Type

Article

Status

Faculty

Facility

School of Medicine

Primary Department

Obstetrics and Gynecology

PMID

32640199

DOI

10.1016/j.ajog.2020.06.045

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