[The relationship of preoperativelymphocyte-monocyte ratio and the clinicopathological characteristics and prognosis of patients with epithelial ovarian cancer].

Objective: To investigate the relationship of preoperative lymphocyte-monocyte ratio (LMR) and the clinicopathological characteristics and prognosis of patients with epithelial ovarian cancer (EOC). Methods: Clinical data of 364 cases of EOC patients with initial treatment were collected in Harbin Medical University Cancer Hospital from 2005-2011 and analyzed retrospectively.The optimal cut-off points of preoperative LMR to predict the postoperative survival period of EOC patients were determined by the establishment of receiver operating characteristic (ROC) curve. The patients were divided into low LMR group and high LMR group according to the optimal cut-off points, and the relationship of LMR and the clinicopathological factors and prognosis of EOC patients were analyzed. Results: The best cut-off point of preoperative LMR to predict the postoperative survival period of EOC patients was 3.84. The preoperative LMR of EOC patients was significantly associated with the postoperative FIGO stage, ascites and CA125 level (all P<0.05). The median follow-up time was 37 months, the median progression-free survival (PFS) time of low LMR group was 56 months, significantly shorter than 88 months of high LMR group (P<0.01). And the median overall survival (OS) time of low LMR group was 69 months, significantly shorter than 100 months of high LMR group (P<0.01). The univariate analysis showed that the postoperative FIGO stage, pathological grade, ascites, lymph node metastasis, CA125 level, adjuvant therapy, preoperative LMR were all significantly associated with PFS (all P<0.05). In addition, the age, postoperative FIGO stage, pathological grade, ascites, lymph node metastasis, CA125 level, adjuvant therapy, preoperative LMR were all significantly associated with OS (all P<0.05). Cox multivariate analysis showed that postoperative FIGO stage Ⅲ-Ⅳ, low differentiation, positive lymph node metastasis, without postoperative adjuvant therapy and LMR≤3.84were independent risk factors of PFS and OS of EOC patients (P<0.05). Conclusion: The preoperative LMR is an independent influence factor of PFS and OS of EOC patients, and can be used to evaluate the prognosis of patients with EOC.