Abstract:Abstract: Objective To analyze the risk factors and treatment methods of lymphatic fistula in gynecological malignant tumors. Methods 190 patients who underwent laparoscopic retroperitoneal lymphadenectomy for gynecological malignant tumors at our institution from April 2016 to August 2017 were retrospectively reviewed. 190 patients were divided into 2 groups based on the presence (n = 22) or absence (n = 168) of lymphatic fistula. Results Among the 190 patients, 22 (11.658%) developed lymphatic fistula. Univariate analysis showed that the preoperative and after surgery hemoglobin, postoperative serum albumin level, range of lymphadenectomy and the number of lymphadenectomy were significantly different between two groups (P < 0.05). The analysis of the various features showed that the range of lymphadenectomy and postoperative serum albumin levels were significantly greater in the patients with lymphatic fistula (P < 0.05). In all patients, 16 lymphatic fistula treated by adjustment diet, electrolyte imbalance correction, intravenous nutrition and continuous drainage and other conservative treatments. 6 chylous fistula treated by fasting, parenteral nutrition and injection of somatostatin, and five of them were cured but one needed operation ligation. Conclusion The range of lymphadenectomy and postoperative serum albumin levels are the risk factors for the occurrence of postoperative lymphatic fistula. Conservative treatments and adequate drainage could be satisfied solution. Selecting the appropriate energy equipment , master the operation skills, known well anatomy and careful operation could prevent the occurrence of lymphatic fistula.