[Arguments for centralization of surgical treatment of ovarian cancer in France based on morbidity and mortality data]. / Intérêts de la centralisation de la chirurgie du cancer de l'ovaire en France.

OBJECTIVE: To examine the current state for ovarian cancer surgery in France from 2009 to 2016 and to examine the impact of the volume of activity on morbidity and mortality by institution. MATERIAL AND METHOD: National retrospective study analyzing surgical sessions for ovarian cancer from the program of medicalization of information systems (PMSI), from January 2009 to December 2016. Institutions were divided according to the number of annual curative procedures into 3 groups: A<10; B: 10-19; C≥20. A propensity score (PS) and the Kaplan-Meier method were employed for statistical analyses. RESULTS: In total, 27,105 patients were included. The 1-month mortality rate in group A, B and C was 1.6; 1 and 0.7 %, respectively (P<0.001). Compared to group C, the Relative Risk (RR) of death within the first month was 2.22 for group A and 1.32 for group B (P<0.01). After MS, the 3- and 5-year survival in group A+B and group C were 71.4 and 60.3% (P<0.05) and 56.6, and 60.3% (P<0.05), respectively. The 1-year recurrence rate was significantly lower in group C (P<0.0001). CONCLUSION: An annual volume of activity>20 advanced stage ovarian cancers is associated with a decrease in morbidity, mortality, recurrence rate and improved survival.

Vaginal and laparoscopic sub-urethral sling explantation.

INTRODUCTION AND HYPOTHESIS: The objective was to describe the different laparoscopic and vaginal steps of sub-urethral infected mesh explantation as well as an unexpected and unusual complication: a sub-mucosal calcification on the sub-urethral segment of the sling that was not infiltrating the urethra. METHODS: This was carried out at our University Teaching Hospital of Strasbourg. RESULTS: We show the complete removal of an infected retropubic sling in a patient who had already undergone three previous surgeries without resolution of symptoms. This is a difficult case requiring a laparoscopic approach of the space of Retzius, which has been less familiar to surgeons since the advent of the midurethral sling. We show how to approach this space in an inflammatory environment by specifying its anatomical limits. Moreover, a great deal can be learned from the occurrence of an infectious complication after the surgery and the presence of a large calcification on the prosthesis. In this context, we advise a systematic antibiotic treatment to avoid this kind of complication. CONCLUSIONS: Knowing the guidelines and the different surgical steps will help urogynecological surgeons to perform similar procedures in patients requiring removal of retropubic slings for complications such as infection and pain, where conservative management has not been successful. These cases must be discussed in a multidisciplinary meeting, as recommended by the French National Authority for Health, and managed in an expert establishment.

Preliminary observational study of the implementation of hyperthermic intraperitoneal chemotherapy in ovarian cancer in the gynecological surgery department at the University Hospital of Strasbourg.

OBJECTIVE: According to French guidelines, hyperthermic intraperitoneal chemotherapy (HIPEC) can be performed for Federation of Gynecology and Obstetrics stage III primary epithelial ovarian, tubal, and peritoneal cancers that are initially unresectable after 3 or 4 cycles of intravenous chemotherapy. The main objective of this preliminary study was to analyze the components necessary for the establishment of HIPEC in an expert gynecological oncological surgery center. The secondary objective was to compare HIPEC using conventional laparotomy and laparoscopic approaches. METHODS: We conducted a single-center retrospective study of patients who received HIPEC. All patients who met the criteria of the French HIPEC guidelines were included from 2019 to 2021. RESULTS: Prior to HIPEC, there were a mean of 3.7 courses of neoadjuvant chemotherapy with carboplatin and paclitaxel. Of the 16 patients who received HIPEC, 9 (56.2%) underwent HIPEC laparoscopically, while 7 (43.8%) underwent laparotomy. There were no differences between the rates of intra- and postoperative complications between the two groups. (p > 0.05). The duration of hospitalization was significantly shorter in patients who were operated laparoscopically than in those treated using laparotomy (55.6% <10 days vs. 0 by laparotomy, p = 0.01). There was also a tendency, although not significant, for a more rapid resumption of adjuvant chemotherapy in the laparoscopy group, with 57.1% resuming chemotherapy in <6 weeks compared to 42.9% in the laparotomy group (p = 0.52). CONCLUSIONS: This study demonstrates the feasibility of HIPEC in a center with expertise in gynecological surgery when there is a suitable technical platform and close collaboration between the different teams involved. We also showed the first cases of HIPEC using laparoscopy, which seems to be a promising approach.

Basics of immunotherapy for epithelial ovarian cancer.

Epithelial ovarian cancer (EOC) is the most lethal of all gynecological cancers. Despite excellent responses to standard treatment in approximately 70% of patients, most of them will relapse within 5 years of initial treatment and many of them will develop chemotherapy-resistant disease. It is then important to find other means of treatment for these patients such as immunotherapy or targeted therapy. To understand immunotherapy, it is important to explain the dynamic interplay between cancer and the immune system. Compared to traditional tumor therapies, immunotherapy acts primarily on the immune system or the tumor microenvironment but not directly on the tumor cells, and it may also promote synergistic anti-tumor actions as part of a combined treatment. The aim of this narrative review is to provide a basic understanding of immunotherapy the interest of this treatment in EOC, and to present the main ongoing studies that could change patient management in the future.

Status of Surgical Management of Borderline Ovarian Tumors in France: are Recommendations Being Followed? Multicentric French Study by the FRANCOGYN Group.

BACKGROUND: Borderline ovarian tumors (BOTs) are tumors with a favorable prognosis but whose management by consensus is essential to limit the risk of invasive recurrence. This study aimed to conduct an inventory of surgical practices for BOT in France and to evaluate the conformity of the treatment according to the current French guidelines. METHODS: This retrospective, multicenter cohort study included nine referral centers of France between January 2001 and December 2018. It analyzed all patients with serous and mucinous BOT who had undergone surgery. A peritoneal staging in accordance with the recommendations was defined by performance of a peritoneal cytology, an omentectomy, and at least one peritoneal biopsy. RESULTS: The study included 332 patients. A laparoscopy was performed in 79.5% of the cases. Treatment was conservative in 31.9% of the cases. The recurrence rate was significantly increased after conservative treatment (17.3% vs 3.1%; p < 0.001). Peritoneal cytology was performed for 95.5%, omentectomy for 83.1%, and at least one biopsy for 82.2% of the patients. The overall recurrence rate was 7.8%, and the recurrence was invasive in 1.2% of the cases. No link was found between the recurrence rate and the conformity of peritoneal staging. The overall rate of staging noncompliance was 22.9%. CONCLUSION: The current standards for BOT management seem to be well applied.

The saga of lymph node surgery in malignant melanoma: a history repeating itself in gynecologic oncology.

In view of the high morbidity to complete lymphadenectomy, the sentinel node procedure is currently being investigated in different cancers with the aim of reducing morbidity and of achieving oncological outcomes similar to complete lymphadenectomy. In this review, a parallel will be drawn between the evolutions of the place of lymph node surgery in the management of melanoma and gynecologic cancers. Currently, in the case of cutaneous melanoma, the indications of lymph node surgery are becoming increasingly rare. In contrast with the scarce available evidence in gynecologic cancer, this trend is supported by multicenter randomized studies with a large number of patients for cutaneous melanoma. The second difference is the demonstrated therapeutic benefit of immunotherapies and targeted therapies in cutaneous melanoma, which are less significant in gynecological cancers for which the mainstay of treatment is surgery. According to this review, it seems that in gynecologic oncology, we could in the next decades follow the same pathway currently taken in the management of lymph nodes in malignant melanoma.

Impact of Lymphadenectomy on Survival of Patients with Serous Advanced Ovarian Cancer After Neoadjuvant Chemotherapy: A French National Multicenter Study (FRANCOGYN).

BACKGROUND: The population of interest to this study comprised individuals with advanced-stage ovarian carcinoma who were exposed to neoadjuvant chemotherapy (NAC) followed by interval debulking surgery (IDS). Those who had not received systematic lymphadenectomy (SL; Group 1) were compared to those who had received SL (Group 2). Outcome measures included progression-free survival (PFS), overall survival (OS), and surgical complications. METHODS: This was a retrospective, multicenter cohort study in nine referral centers of France between January 2000 and June 2017. OS analysis using the multivariate Cox regression model was performed. PFS and surgery-related morbidity were analyzed. RESULTS: Of the 255 patients included, 100 were in Group 1 and 155 in Group 2. Patient majority was, on average, younger and less comorbid, with predominant R0 surgery in Group 2. Dindo-Clavien score was similar between the two groups (p = 0.15). Median OS was 26.8 months in Group 2 and 27.6 months in Group 1. SL was not statistically significant on OS (p = 0.7). Median PFS was 18.3 months in Group 2 and 16.6 months in Group 1. SL had positive impact on PFS (p = 0.005). CONCLUSIONS: patients who had received SL (Group 2) had significantly higher PFS regardless of node-positivity status when compared to those who had not received SL (Group 1).