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Gynecol Oncol. 2012 Apr;125(1):94-8. doi: 10.1016/j.ygyno.2011.11.049. Epub 2011 Dec 7.

Do uterine risk factors or lymph node metastasis more significantly affect recurrence in patients with endometrioid adenocarcinoma?

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  • 1Department of Obstetrics and Gynecology, The University of Oklahoma Health Science Center, Oklahoma City, OK, USA. elizabeth-nugent@ouhsc.edu

Abstract

OBJECTIVES:

Controversy continues over the importance of lymph node (LN) status in treating and predicting recurrence in endometrial cancer. Several predictive models are available which use uterine factors to stratify risk groups. Our objective was to determine how LN status affects recurrence and survival compared to uterine factors alone.

METHODS:

A retrospective review was performed of patients undergoing complete surgical staging for clinical stage 1 endometrioid adenocarcinoma of the uterus. Patients were assessed based on PORTEC 1 high intermediate risk (H-IR) criteria (2 factors : age>60, grade 3, >50% DOI), GOG-99 H-IR criteria (age >70+1 factor, age 50-70+2 factors, any age +3 factors: grade 2 or 3, LVSI, >50% DOI), and PORTEC 2 criteria. Rates of nodal involvement, recurrence rates, PFS, and OS were compared.

RESULTS:

We identified 352 clinical stage I patients with positive LN in 24% (87). 175 patients met PORTEC 1 eligibility and 66 met H-IR criteria. Rates of LN positivity were similar among groups (18.4% vs 19.7%, p=0.83) but recurrence rates were dissimilar (7.4% vs 27.3%, p=0.0004). Only 93 met PORTEC 2 criteria for treatment with no association between LN status, recurrence, and eligibility. 188 patients met H-IR eligibility criteria for GOG-99 with LN positive and recurrence rates higher in the H-IR group compared to GOG-99 eligible (34.6% vs 16.3%, p=0.0004, 28.3% vs. 10.6%, p=0.0002).

CONCLUSIONS:

Patients with H-IR disease based on uterine characteristics alone have substantial risk of nodal involvement. Knowledge of LN status may better define risk, prognosis, and postoperative treatment.

Copyright © 2011 Elsevier Inc. All rights reserved.

PMID:
22155415
[PubMed - indexed for MEDLINE]
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