Rectosigmoid Mesorectal-Sparing Resection in Advanced Ovarian Cancer Surgery

Ovarian cancer is the most lethal of all gynecologic cancers.¹ Primary debulking surgery (PDS) with achievement of no residual tumor (RT, 0) still is the recommended treatment, and the one with the greatest prognostic impact.^2,3 Given the usual disease spread, several surgical procedures often are needed, and one of the most frequent is rectosigmoid resection.⁴ Anastomotic leak is the most feared complication. Other common complications are persistent urinary, defecatory, and sexual dysfunction due to autonomic nervous system injuries during surgery.⁵ Even if mesorectal resection is not deemed part of the treatment paradigm for advanced ovarian cancer (AOC), total mesorectal excision (TME) is the most common surgical technique used. However, for selected cases, with detection of no lymphadenopathies at the origin of the of the inferior mesenteric artery and a favorable ratio between the length of the left colon and the extent of the bowel carcinomatosis, a mesorectal-sparing resection with the preservation of the superior rectal artery and the mesorectal tissue should be pursued. This report presents the case of a 54-year-old woman with a diagnosis of FIGO stage 3C AOC who underwent PDS. The video (video 1) provides a step-by-step description of the surgical technique adopted for colorectal resection with mesorectal-sparing technique. Rectosigmoid mesorectal-sparing resection is feasible and could be a viable option for selected cases of AOC, maximizing the blood supply to colorectal anastomosis while minimizing the risk of both anastomotic leak and pelvic autonomic nervous system dysfunction.⁶.