Abstract: Objective: To explore the related factors and curative effects for postoperative lymphocysts complicated with infection in gynecologic malignant tumor patients. Methods: A total of 351 patients with gynecologic malignant tumor who were treated by undergoing laparoscopic surgery in the First Hospital of Lanzhou University from Jan 2017 to Jan 2019 were retrosoectively enrolled in the study. According to the presence of lymphocyst formation, they were devided into lymphocyst group and no lymphocyst group. The two groups were compared in general condition, intraoperative status, postoperative laboratory tests and postoperatuve pathology. Results: The univariate analysis suggested that the incidence of lymphocyst was statistically significant with the number of dissection of lymph nodes (P=0.000), indwelling time of drainage tube (P=0.013), postoperative radiotherapy (P=0.005), body mass index (BMI, P=0.000) and triglyceride (TG, P=0.004) between the groups with and without lymph cyst. Logistic regression correlation analysis results showed that the number of resected lymphnodes and BMI were independent risk factors for lymphcyst formation (P＜0.05). 20 patients were complicated with lymphocyst infection during the adjuvant therapy with the incidence of 17.85%. The univariate analysis indicated that the infection was closely associated with the diameter of lymphocyst (P=0.000) and diabetes mellitus (P=0.000). The Logistic regression analysis showed that the diameter of lymphocyst was the independent influencing factor for the lymphocyst complicated with infection (OR=4.375, P=0.041). Conclusions: The number of lymph nodes resected, indwelling time of drainage tube, postoperative adjuvant radiotherapy, the ■ BMI and TG were the related factors of lymphocysts after pelvic lymph node dissection for gynecological malignant tumor. The diameter of lymphocyst was the independent influencing factors for the lymphocyst complicated with infection. Puncture and drainage combined with antibiotics were recommended therapy.

Key words: Gynecological malignant tumor, Genital neoplasms, female;, Lymph node excision;, Lymphocele;, Infection;, Therapy