Long-term oncological safety of minimally invasive surgery in high-risk endometrial cancer

Publication date: September 2016
Source:European Journal of Cancer, Volume 65
Author(s): Martin Koskas, Marta Jozwiak, Marie Fournier, Ignace Vergote, Hans Trum, Christianne Lok, Frédéric Amant
BackgroundSeveral studies showed that women with low-risk endometrial cancers staged by minimally invasive surgery (MIS) experience fewer postoperative complications compared to those staged by laparotomy with similar disease-free survival (DFS) and overall survival (OS). However, high-risk patients were poorly represented. In this study, we compared DFS and OS in high-risk endometrial cancer patients who underwent surgical staging via MIS versus laparotomy.MethodsUsing a multicentric database, we compared DFS and OS between 114 patients with high-risk histology who underwent surgical staging via MIS and 114 patients who underwent laparotomy. Patients were matched for age, tumour type, FIGO stage and management criteria.ResultsAmong the 114 patients who underwent MIS, 93 underwent laparoscopy and 21 robotic surgery. Groups were comparable for stage, body mass index, histology and adjuvant therapies. However, patients in the MIS group underwent paraaortic lymphadenectomy less frequently (13% versus 29%; p = 0.01), had less lymph nodes removed (19.0 versus 28.6; p < 0.01) and had lower mean tumour size (30 versus 40 mm; p < 0.01). With a median follow-up time of 49 months, DFS and OS were not significantly different between the surgical cohorts. In multivariable analysis, both higher stage (hazard ratio [HR] = 2.2) and histology (HR = 4.9) were associated with DFS in contrast to surgical procedure (HR = 0.9).ConclusionsBeyond the benefit of MIS on immediate surgical outcome, our results show that fear for a poor long-term outcome should not be the reason to refrain from MIS in patients with high-risk endometrial cancer.



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