anal sphincterotomy

Anal sphincter incision is a surgical procedure for the anal sphincter spasm. Treatment of diseases: anal canal sphincter spasm contraction Audi sphincter dysfunction Indication It is suitable for short-segment megacolon or internal sphincter spasm after radical surgery. Contraindications It is suitable for short-segment megacolon or internal sphincter spasm after radical surgery. Preoperative preparation Intestinal preparation is required before surgery. Surgical procedure 1. Incision: The position of the stone is cut, and the buttocks are raised. After disinfecting the surgical field, use your fingers to dilate the anus and disinfect the rectum and anal canal with red mercury. In order to prevent the contamination of the colon contents, a large gauze soaked in gentamicin and metronidazole solution was filled in the rectal cavity. A thread is sewn at one end of the gauze to leave it outside the anus. Leave a pull line on the perianal. In the posterior part of the anus (6 points of the lithotripsy), the adrenaline-containing saline solution was injected into the anal canal mucosa, so that the mucosa of the posterior wall of the rectum was milky white and separated from the muscle layer, which was present on the dentate line of the posterior wall of the anus. Cut the mucosa in a semi-circular shape. 2. Excision of the internal sphincter: close to the rectal mucosa, to expose the anal internal sphincter, clamped and pulled with a vascular clamp, and continue to detach upward to the appropriate height. Then, the inner sphincter and rectal muscle layers are cut along the longitudinal wall of the rectum. It is generally 1.0cm wide and its length is 3~5cm in infants and 5~7cm in children. 3. Suture incision: Finally, the rectal mucosa is sutured with the anal skin, and the gauze in the rectum is taken out, and the anal canal is placed to stop bleeding.