Interdisciplinary surgery for advanced gynecologic malignancies: Outcome and complication rate

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Background: Advanced gynecologic malignancies are known to have a poor prognosis. Due to local invasion in adjacent organs, finding the most suitable therapeutic option is often difficult. This study aims to assess the outcome of interdisciplinary surgery for locally advanced gynecologic malignancies focusing on women treated by pelvic exenteration (PE). Methods: All women that were treated with PE at the University Hospital Marburg between 04/2011 and 06/2016, were enrolled in this retrospective study. A data sheet was prepared assessing e.g. demographic informations, tumor type and previous therapies. Furthermore, complication rate (Clavien Dindo, follow-up and outcome were evaluated. Results: From the 57 women identified, the indications for PE were malignancies of the cervix (47.2%), vagina (15.1%), vulva (13.2%), endometrium (11.3%), ovaries (5.7%) and undifferentiated (uterus) (1.9%). 51.9% were treated for recurrent cancer. 26% received no treatment prior to PE, 16%, 38%, 20% received 1, 2 or 3 previous treatments respectively (chemotherapy, radiation, surgery). 54.7% of the patients underwent anterior, 37.8% total and 7.5% posterior PE. Urinary diversion was predominantly ileum conduit (76%). Major complications (Clavien Dindo > 2) were observed for 40.4%, 19.2% had no complications. No correlation with clinical parameters (e.g. BMI, age, time of surgery), previous therapy or urinary diversion could be shown. Renal function improved significantly postoperatively (p < 0.05). Mean hospital stay was 25 d. Median overall survival (OS) was 15.2 months. It was not influenced by the entity of the tumor. Two years survival rate (SR) was 38.2%; 3 years SR 27.3%. After 47 months median follow-up time, 23.7% of the treated women were still alive. Conclusions: PE remains to be a meaningful treatment option for women with invasive gynecologic malignancies also after multiple previous therapies, showing acceptable complication rates and satisfactory OS in regard to the extensive nature of the malignancies and the procedure.

LION: Lymphadenectomy in ovarian neoplasms—A prospective randomized AGO study group led gynecologic cancer intergroup trial

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Background: So far, there is no level-1 evidence regarding the role of systematic pelvic and para-aortic lymphadenectomy (LNE) in patients with advanced ovarian cancer (AOC) with macroscopic complete resection und clinically negative lymph nodes (LN). Therefore, surgical management regarding LNE worldwide is very heterogeneous. Methods: Prospective randomized trial including patients with newly diagnosed AOC FIGO IIB-IV with macroscopic complete resection and pre- and intra-operatively clinical negative LN were randomized intra-operatively to LNE versus no-LNE. All centers had to qualify regarding surgical skills before participation in this trial. The primary endpoint was overall survival. Results: 647 patients were randomized between 12/08 and 1/12 to LNE (n=323) or no-LNE (n=324). The median number of removed LN in patients randomized to LNE was 57 (pelvic 35 and para-aortic22). Post-op platinum-taxane based chemotherapy was applied in 85% of the patients in the no-LNE arm and 80% in the LNE arm. Microscopic metastases were diagnosed in 56% of the pts in the LNE arm. Median OS in the no-LNE arm was 69 months and 66 months in the LNE arm (HR 1.06, 95%CI 0.83-1.34, p=0.65) and the median PFS was 26 months in both arms (HR 1.11, 95%CI 0.92-1.34 p=0.30). Surgery in the LNE arm was 64 minutes longer (means: 352 vs 288 min), resulted in a higher median blood loss (650 vs 500 ml), and a higher transfusion rate (67% vs 59%). Furthermore, serious post-operative complications occurred more frequently in the LNE arm (e.g. rate of re-laparotomies 12.1% vs 5.9% [p=0.006], hospital re-admittance rate 8.0% vs 3.1% [p=0.006] and deaths within 60 days after surgery 3.1 vs 0.9% [p=0.049]). Conclusions: Systematic pelvic and para-aortic LNE in patients with AOC with both intra-abdominal complete resection and clinically negative LN neither improve overall nor progression-free survival despite detecting (and removing) sub-clinical retroperitoneal lymph node metastases in 56% of the patients. Our data indicate that systematic LNE of clinical negative LN in patients with AOC and complete resection should be omitted to reduce post-operative morbidity and mortality. Clinical trial information: NCT00712218.