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18.02.2021 | Original Contributions

Impact of Bariatric Surgery on Endometrial Cancer Tumor Pathology

Zeitschrift:
Obesity Surgery
Autoren:
David A. Mahvi, Olivia W. Foley, Ali Ardestani, Ali Tavakkoli, Eric G. Sheu
Wichtige Hinweise

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Abstract

Introduction

Obesity is a well-established risk factor for endometrial cancer and is thought to adversely affect outcomes. The impact of significant and sustained weight loss as achieved by bariatric surgery for women with endometrial cancer is not well understood.

Methods

We performed an institutional retrospective review of patients who underwent bariatric surgery and were diagnosed with premalignant or malignant uterine disease from 1989 to 2019 (n=171). We compared tumor characteristics and cancer-specific outcomes in patients diagnosed with uterine disease before (“PRE” group) or after (“POST” group) undergoing bariatric surgery and in a BMI- and age-matched cohort who did not undergo bariatric surgery.

Results

Of the 171 patients, 120 were in the PRE group and 51 in the POST group. The POST group was more likely to have adenocarcinoma (68.6 vs 45.0%, p=0.012) and more likely to have a minimally invasive hysterectomy (80.9 vs 46.2%, p<0.001). Post-bariatric surgery weight loss was similar between the two groups. In women with malignant disease, tumor grade and pathology were similar in the PRE and POST groups. The 5-year overall survival was 98% in the PRE group and 77.8% in the POST group (p=0.016). However, 5-year overall survival was statistically similar in both PRE and POST groups compared to a matched cohort who did not undergo bariatric surgery.

Conclusions

In this study, we did not detect an impact of bariatric surgery on endometrial cancer pathology or disease survival. Larger, multi-center studies are needed to investigate the relationship between bariatric surgery status and cancer outcomes.

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