Figure. 2. Surgical findings of the transanal procedure
We entered the layer between the internal and external sphincters and proceeded with the detachment of the pelvic muscles to the extent that the prostate was palpable on the ventral side and the coccyx on the dorsal side. After peeling to that depth, we spread three pieces of gauze all around the deepest parts. They gauze contained a liquid prepared by dissolving 25 mg of ICG in 10 mL of water containing sodium arginine.