RT Journal Article SR Electronic T1 2022-VA-572-ESGO Hudson posterior exenteration, with the use of ICG fluorescence to assess rectal anastomosis and ureteral integrity JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP A239 OP A239 DO 10.1136/ijgc-2022-ESGO.515 VO 32 IS Suppl 2 A1 Nguyen, Dong Bach A1 Santana, Beatriz Navarro A1 Babin, Guillaume A1 Forte, Sara A1 Mairé, Mathilde A1 Guyon, Frédéric YR 2022 UL http://ijgc.bmj.com/content/32/Suppl_2/A239.1.abstract AB Introduction/Background The surgical approach to hysterectomy for ovarian cancer has remained largely unchanged since Hudson described the en-bloc resection of fixed ovarian tumors using a retrograde technique in 1968. When a colorectal resection is required for optimal debulking, anastomotic leak remains a significant concern. While the traditional techniques used to evaluate for anastomotic perfusion lack accuracy, data from a recent systematic review and meta-analysis favours the use of ICG intra-op to reduce the incidence of anastomotic leak and associated need for re-intervention.Methodology With the use of surgical footage, this video aims to present the surgical steps to a Hudson procedure with colorectal resection, ending with the use of ICG fluorescence to assess the perfusion of the colorectal anastomosis and ureters.Results The surgical approach can be summarized in the following ten steps: (1) retroperitoneal dissection of the vascular pedicles and ureters, and transection of the IP ligament; (2) dissection of the paravesical and pararectal spaces; (3) lateral and pre-vesical peritonectomy; (4) ureterolysis and transection of the uterine vessels; (5) transection of the vesciouterine and uterosacral ligaments; (6) colpotomy; (7) mesorectal dissection and distal rectal transection; (8) proximal rectosigmoid transection; (9) vaginal vault closure and colorectal anastomosis; (10) assessment of colorectal anastomosis and ureteral vascularization by ICG fluorescence.Conclusion This video presented 10 reproducible steps to perform a Hudson procedure with colorectal resection for ovarian cancer. The use of ICG as an adjunct to assess the vascularization of the colorectal anastomosis appears to reduce the risk of anastomotic leak in colorectal surgery, and may be of interest in gynecologic-oncologic surgery.