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. 2023 Oct;30(11):6855-6864.
doi: 10.1245/s10434-023-13695-x. Epub 2023 Jun 29.

Comparison of Minimally Invasive and Open Surgery for the Treatment of Endometrial Cancer with a High Risk of Recurrence: A Propensity Score Matching Study in Korea and Taiwan

Chi-Son Chang #  1   2 , Yen-Ling Lai #  3   4 , Chel Hun Choi  1 , Tae-Joong Kim  1 , Jeong-Won Lee  1 , Byoung-Gie Kim  1 , Wen-Fang Cheng  4 , Yu-Li Chen  5   6 , Yoo-Young Lee  7
Affiliations

Comparison of Minimally Invasive and Open Surgery for the Treatment of Endometrial Cancer with a High Risk of Recurrence: A Propensity Score Matching Study in Korea and Taiwan

Chi-Son Chang et al. Ann Surg Oncol. 2023 Oct.

Abstract

Background: This study compared oncologic outcomes between minimally invasive surgery (MIS) and open surgery for the treatment of endometrial cancer with a high risk of recurrence.

Methods: This study included patients with endometrial cancer who underwent primary surgery at two tertiary centers in Korea and Taiwan. Low-grade advanced-stage endometrial cancer (endometrioid grade 1 or 2) or endometrial cancer with aggressive histology (endometrioid grade 3 or non-endometrioid) at any stage was considered to have a high risk of recurrence. We conducted 1:1 propensity score matching between the MIS and open surgery groups to adjust for the baseline characteristics.

Results: Of the total of 582 patients, 284 patients were included in analysis after matching. Compared with open surgery, MIS did not show a difference in disease-free survival [hazard ratio (HR) 1.09; 95% confidence interval (CI) 0.67-1.77, P = 0.717] or overall survival (HR 0.67; 95% CI 0.36-1.24, P = 0.198). In the multivariate analysis, non-endometrioid histology, tumor size, tumor cytology, depth of invasion, and lymphovascular space invasion were risk factors for recurrence. There was no association between the surgical approach and either recurrence or mortality in the subgroup analysis according to stage and histology.

Conclusions: MIS did not compromise survival outcomes for patients with endometrial cancer with a high risk of recurrence when compared with open surgery.

Keywords: Endometrial cancer; Laparotomy; Minimally invasive surgery; Recurrence; Survival.

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