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A lower anterior resection, formally known as anterior resection of the rectum and colon and anterior excision of the rectum or simply anterior resection (less precise), is a common surgery for rectal cancer and occasionally is performed to remove a diseased or ruptured portion of the intestine in cases of diverticulitis.
Low anterior resection syndrome is a complication of lower anterior resection, a type of surgery performed to remove the rectum, typically for rectal cancer.It is characterized by changes to bowel function that affect quality of life, and includes symptoms such as fecal incontinence, incomplete defecation or the sensation of incomplete defecation (rectal tenesmus), changes in stool frequency ...
For lower down tumours in the middle and lower third of the rectum a new procedure has been developed known as Transanal-Total Mesorectal Excision (TaTME). Instead of the dissection via the abdomen TaTME combines an abdominal and transanal endoscopic approach (endoscopic instruments are inserted into the anus) allowing easier dissection of the ...
A surgical anastomosis is a surgical technique used to make a new connection between two body structures that carry fluid, such as blood vessels or bowel. For example, an arterial anastomosis is used in vascular bypass and a colonic anastomosis is used to restore colonic continuity after the resection of colon cancer .
The anastomosis supplying the left anterior descending branch is the most significant one and usually, the left internal mammary artery is harvested for use. Other commonly employed sources are the right internal mammary artery, the radial artery , and the great saphenous vein .
Diagrammatically, the Roux-en-Y anastomosis looks a little like the letter Y. [ citation needed ] Typically, the two upper limbs of the Y represent (1) the proximal segment of stomach and the distal small bowel it joins with and (2) the blind end that is surgically divided off, and the lower part of the Y is formed by the distal small bowel ...
A proctosigmoidectomy, Hartmann's operation or Hartmann's procedure is the surgical resection of the rectosigmoid colon with closure of the anorectal stump and formation of an end colostomy. It was used to treat colon cancer or inflammation (proctosigmoiditis, proctitis, diverticulitis, volvulus, etc.).
The size of the ulcers is usually 0.5–4 cm. [5] The lesion is most often located on the anterior (front) or lateral (side) rectal wall, centered on a rectal fold, [1] usually 10 cm from the anal verge. [8] Less commonly there may be ulcers in the anal canal or even in the sigmoid colon. [5]