<qa>  What is the percentage of complications that can result in lymphadenectomy?Although it has been demonstrated that lymphadenectomy is technically feasible and relatively safe in this subset of patients, however, it is burdened by a certain percentage of complications including limphocyst, lymphedema, hemorrhage, ranging from 6 to 45. In addition, the actual therapeutic role is still controversial and it is not clear whether this surgical procedure should be part of the staging of these tumors. Retrospective studies have shown a benefit on overall survival in patients with ovarian cancer who underwent lymphadenectomy associated with optimal debulking residual tumor 1 cm. In a recent publication by SEER is found that the number of lymph nodes removed during surgery for advanced ovarian cancer is an independent prognostic factor. 