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Colorectal surgery is a field in medicine dealing with disorders of the rectum, anus, and colon. [1] The field is also known as proctology, but this term is now used infrequently within medicine and is most often employed to identify practices relating to the anus and rectum in particular.
Right hemicolectomy is most commonly indicated for masses in the right, or ascending, colon but may also be performed for neoplasms of the cecum or appendix. Right-sided diverticulitis, cecal volvulus, inflammatory bowel disease, and adenomatous polyps are benign conditions that may require right hemicolectomy. [11]
The right and left colon sit in the retroperitoneum. To access this space an incision is made along the line of Toldt. The colon is then mobilized from the retroperitoneum. Care is taken to avoid injury to the ureters and duodenum. The surgery then follows the same steps as small bowel resection.
In general surgery, a Roux-en-Y anastomosis, or Roux-en-Y, is an end-to-side surgical anastomosis of bowel used to reconstruct the gastrointestinal tract. Typically, it is between stomach and small bowel that is distal (or further down the gastrointestinal tract) from the cut end. [1]
The Hartmann's procedure with a proximal end colostomy or ileostomy is the most common operation carried out by general surgeons for management of malignant obstruction of the distal colon. During this procedure, the lesion is removed, the distal bowel closed intraperitoneally, and the proximal bowel diverted with a stoma.
The scale assesses three components of the large intestine: (1) the rectosigmoid colon, (2) the mid colon and (3) the right colon. A maximum score of 4 is used for each section of the large intestine. A score of 0 is given if the bowel preparation is excellent, meaning the mucosal detail is visible, there is no fluid and almost no stool.
Prior to surgery, the bowels are typically cleared with a routine called bowel prep. [20] Bowel prep can be performed at home the 1–2 days before surgery or in some instances, occurs in a hospital before the operation. [20] Bowel prep may require magnesium citrate drink to empty the colon. [21] Bowel prep is done to reduce infection risk. [22]
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.