Cancer-field surgery for endometrial cancer by robotic peritoneal mesometrial resection and targeted compartmental lymphadenectomy (PMMR+TCL).

Objective: Cancer-field surgery by peritoneal mesometrial resection and targeted compartmental lymphadenectomy (PMMR+TCL) for the treatment of endometrial cancer (EC) aims at optimal locoregional tumor control without the need for adjuvant radiotherapy. In a previous publication we could demonstrate the feasibility of the method and presented encouraging first oncologic data.

Methods: Following up our 2021 publication, we present data on the treatment of EC by PMMR+TCL in much larger cohort and with longer follow-up.

Results: One hundred and thirty-five patients with EC International Federation of Gynecology and Obstetrics (FIGO) I-IV (75.6% FIGO I) underwent cancer field surgery via PMMR+TCL for EC in the years 2016-2023. Mean follow-up in our cohort was 27.5 months (0, 83; 19.7). The procedure was feasible and safe with favorable intra-and postoperative complication rates. Even though 50.4% of patients had an indication for postoperative radiotherapy following national and international guidelines, the rate of postoperative irradiation administered was 10.4%. The overall recurrence rate was 8.1% and we observed 2 (1.5%) isolated locoregional recurrences.

Conclusion: Our results confirm the feasibility and safety of PMMR+TCL in EC patients. Oncologic data are very encouraging and hint at a superior locoregional control without adjuvant irradiation. Larger studies with longer follow-up will be needed to confirm these results.