Article révisé par les pairs
Résumé : Introduction: The two major treatment related prognostic factors for peritoneal metastasis of ovarian cancer (PMOC) are chemosensitivity and completeness of cytoreduction (CC). Chemosensitivity can be assessed by the CA-125 elimination rate constant K (KELIM) score, based on CA-125 kinetics. CC is evaluated by residual macroscopic disease. The aim of this study was to evaluate the prognostic impact of KELIM score versus CC, in a population who underwent complete (CC-0) and near-complete (CC-1) debulking. Materials and methods: Monocentric retrospective study including patients with primary PMOC treated with curative intent between January 2010 and December 2021. The Biomarker Kinetics website (CA-125 KELIM Calculator) was used to calculate the KELIM score. Univariate and multivariate analysis were performed to assess the impact of CC and KELIM score on PFS and OS. Results: A total of 111 patients were included in the study. Kaplan-Meier analysis showed that PFS and OS were significantly influenced by KELIM, CC, PCI, and BRCA mutation (p < 0.05). Multivariate Cox analysis showed that PFS was significantly influenced by CC (HR = 0.481, p = 0.0027), while OS was influenced by KELIM (HR 0.561, p = 0.0408). Conclusion: These results suggest that PFS is more impacted by the completeness of the surgery than the KELIM score and the KELIM score influences OS more than the completeness of surgery.

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