FLuorescence Guided Assessment of Mesenteric Ischemia in Emergency Surgery

This is a prospective, multicentre, non-randomized cohort study using real-time intraoperative visualization of bowel perfusion by indocyanine green (ICG) in all-cause bowel ischemia. At intraoperative finding of bowel ischemia, the initial intraoperative plan is noted and resection margins marked with a steril pen. A fluorescence angiography will be performed and the surgeon will note whether the suspected ischemic bowel is perfused, whether there is a change in the resection margins in centimeters, and if the intraoperative plan has changed. If resection is indicated and the strategy of choice is an anastomosis, a renewed fluorescence angiography will be performed to assess anastomotic perfusion.