PT - JOURNAL ARTICLE AU - Vargiu, Virginia AU - Rosati, Andrea AU - Gallotta, Valerio AU - Tortorella, Lucia AU - Capozzi, Vito Andrea AU - Palmieri, Luca AU - Cosentino, Francesco AU - Scambia, Giovanni AU - Fanfani, Francesco TI - #831 Minimally invasive surgery in recurrent endometrial cancer a multicenter study AID - 10.1136/ijgc-2023-ESGO.378 DP - 2023 Sep 01 TA - International Journal of Gynecologic Cancer PG - A184--A184 VI - 33 IP - Suppl 3 4099 - http://ijgc.bmj.com/content/33/Suppl_3/A184.1.short 4100 - http://ijgc.bmj.com/content/33/Suppl_3/A184.1.full SO - Int J Gynecol Cancer2023 Sep 01; 33 AB - Introduction/Background Secondary cytoreductive surgery (SCS) is gaining increasing interest in the treatment of endometrial cancer (EC) recurrence. Although the role of minimally invasive surgery (MIS) is well recognized in the initial treatment of EC, there is no data about its safety, in terms of oncological outcomes, in relapsed disease.Methodology Multicenter retrospective study including patients with first EC relapse subjected to SCS between January2010 and May2022. Primary outcome was to compare oncological outcomes of patients subjected to MIS or open SCS. Secondary outcome was to assess factors that could be favorably associated with MIS. Survival was determined from date of first recurrence to last follow-up or cancer-related death and estimated using Kaplan-Meier method. Differences in survival were analyzed using Log-rank test. Binomial logistic regression was performed to evaluate factors that could predict MIS.Results Data from 210 patients were retrieved. No differences in terms of post relapse and post relapse free survival were highlighted (log-rank test p=0.235 and p=0.628 respectively). Body mass index (BMI)≥30, early FIGO stage at diagnosis, single site relapse and the hematogenous pattern of relapse (parenchymal relapse) were positively associated with MIS (respectively BMI≥30 OR 2.216, 95% CI: 1.109–4.430, p=0.024; early FIGO stage: OR: 4.294, 95% CI: 1.571–11.737, p=0.005; single site relapse OR: 2.757, 95% CI: 1.059–7.178, p=0.038; hematogenous pattern of relapse OR: 4.322, 95% CI: 1.711–10.918, p=0.002). In contrast, patients who received adjuvant radiotherapy at first diagnosis were less probably operated through MIS (OR 0.444, 95% CI 0.213–0.925, p=0.030) (figure 1).Conclusion MIS for recurrent EC did not affect surgical outcomes. The early-stage disease at diagnosis, the single site relapse, the evidence of a single parenchymal metastasis (hematogenous pattern) and a BMI over 30 were positively associated with the minimally invasive approach. In contrast, previous radiotherapy was identified as negative predictor.Abstract #831 Figure 1 Disclosures None