Abstract
Introduction. Surgical staging, including pelvic and para-aortic lymphadenectomy, is recommended for patients with early-stage ovarian cancer. Detection of lymph node metastasis may change the treatment plan. However, the therapeutic role of pelvic and para-aortic lymphadenectomy is still under debate, and this procedure may increase the risk of intra- and postoperative complications.
Aim. To determine the rate of lymph node metastasis in patients with early-stage ovarian cancer. To estimate the impact of lymphadenectomy on treatment planning and recurrence-free survival.
Materials and Methods. We retrospectively analyzed the outcomes of ovarian cancer patients with clinical stage I-IIA who underwent surgical staging, including pelvic and para-aortic lymphadenectomy, in the Department of Onco-Gynecology from 2018 to 2023. The primary endpoint of the study was the incidence of detection of lymph node metastases in early-stage ovarian cancer.
Results. The study included a total of 99 female patients. According to surgical staging, tumor cells were found in cytology — 12.1 %, pelvic and paracolic gutters — 4 %, fallopian tubes — 4 %, omentum — 5.1 %, contralateral ovary — 2 %. The rate of lymph node metastases was 7.1 %. Upstaging occurred in 31.3 % of patients. In 99 patients, 11.1 % had their treatment plan changed due to metastases found during surgical staging. The detection of lymph node metastases did not influence the change in treatment plan with regard to the administration of standard adjuvant chemotherapy in the study group. PARP-i maintenance was only indicated in one patient with HRD-positive metastases in para-aortic lymph nodes. The overall rate of intraoperative complications was 3 %, postoperative complications — 38.4 %, major postoperative complications — 6.1 %.
After a median follow-up of 32.1 months (96 % of patients), progression-free survival was 93.3 % and all patients followed were alive at the time of analysis.
Conclusion. The rate of retroperitoneal lymph node metastases in patients with early-stage ovarian cancer was 7.1 %, detected after pelvic and para-aortic lymphadenectomy This did not affect the adjuvant treatment plan. Prospective randomized trials are required to assess the therapeutic role of lymphadenectomy in early-stage ovarian cancer.
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