ABSTRACT
OBJECTIVE: The aim of this study is to compare the rates of nodal involvement in epithelial ovarian cancer (EOC) in patients who underwent initial lymphadenectomy (before chemotherapy/group 1) and patients who underwent lymphadenectomy after chemotherapy (during interval debulking surgery/group 2 or second-look surgery/group 3). PATIENTS AND METHODS: The rates of nodal involvement in 205 patients with EOC who underwent complete pelvic and paraaortic lympadenectomy were compared. One hundred and five patients underwent this surgical procedure at the end of chemotherapy (group 3) or during chemotherapy (group 2) for 28 patients (with three courses of a platinum-based regimen containing paclitaxel) and were compared to 100 patients who underwent initial lymphadenectomy (group 1). RESULTS: In patients with stage I and II disease the rate of nodal involvement in group 1 and 3 were similar (respectively 19% vs. 21% and 50% vs. 33% in stage I or II disease-NS). In patients with stage III disease, the rates of nodal involvement in patients treated with initial surgery, interval debulking surgery (with paclitaxel-based regimen) and second-look surgery were respectively: 53%, 58% and 48% (NS). Adding to the platinum-based regimen does not seem to improve node sterilization rates. DISCUSSION AND CONCLUSIONS: The rates of nodal involvement seem to be similar in patients treated before or after chemotherapy but the comparison of groups is difficult because the presence of several bias (particularly in early stage disease). Such results suggest that nodal metastases are not totally sterilized by chemotherapy. However, further studies are needed to evaluate the therapeutic value of lymphadenectomy in patients with nodal involvement.
Subject(s)
Drug Resistance, Neoplasm , Lymph Node Excision , Lymphatic Metastasis , Ovarian Neoplasms/drug therapy , Ovarian Neoplasms/surgery , Adolescent , Adult , Aged , Antineoplastic Agents/therapeutic use , Female , Humans , Middle Aged , Ovarian Neoplasms/pathologyABSTRACT
BACKGROUND: To report the rates of nodal involvement in epithelial ovarian cancer (EOC) in patients who underwent initial lymphadenectomy (before chemotherapy) and patients who underwent lymphadenectomy after chemotherapy. STUDY DESIGN: The rates of nodal involvement in 205 patients with EOC who underwent complete bilateral pelvic and para-aortic lympadenectomy between 1985 and 2001 were analyzed: 100 women underwent this surgical procedure before chemotherapy (initial surgery) and 105 at the end of chemotherapy (second-look surgery for 77 patients with 6 courses of a platinum-based regimen) or during chemotherapy (interval debulking surgery for 28 patients with 3 courses of a platinum-based regimen containing paclitaxel). RESULTS: The overall frequency of lymph-node involvement was 35% (35/100) in patients treated with initial surgery, 54% (15/28) in the interval debulking surgery group and 36% (28/77) in the second-look surgery group. In patients with Stage III disease, the rates of nodal involvement in patients treated with initial surgery, interval debulking surgery (with paclitaxel-based regimen) and second-look surgery were respectively: 53% (15/28), 58% (15/26) and 48% (20/42). The rates of nodal involvement in patients who underwent lymphadenectomy prior to or after chemotherapy were not statistically different whatever the stage of the disease. Adding paclitaxel to the platinum-based regimen does not seem to improve node sterilization rates. CONCLUSIONS: The rates of nodal involvement seem to be similar in patients treated before or after chemotherapy. Such results suggest that nodal metastases are not as chemosensitive as peritoneal lesions. However, further studies are needed to evaluate the therapeutic value of lymphadenectomy in patients with nodal involvement.
