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A bowel resection or enterectomy (enter-+ -ectomy) is a surgical procedure in which a part of an intestine (bowel) is removed, from either the small intestine or large intestine. Often the word enterectomy is reserved for the sense of small bowel resection, in distinction from colectomy, which covers the sense of large bowel resection.
In medicine, the ileal pouch–anal anastomosis (IPAA), also known as restorative proctocolectomy (RPC), ileal-anal reservoir (IAR), an ileo-anal pouch, ileal-anal pullthrough, or sometimes referred to as a J-pouch, S-pouch, W-pouch, or a pelvic pouch, is an anastomosis of a reservoir pouch made from ileum (small intestine) to the anus, bypassing the former site of the colon in cases where the ...
In this procedure, the entire large intestine and rectum is surgically removed, and the ileum is then stitched to the anus to allow fecal matter to go through the ileum just as it did when the patient had a large intestine. This procedure requires a temporary loop ileostomy to allow the anastomosis to heal.
Organs are therefore fully drained of blood, flushed with cool preservation solution, and removed from the body. [2] [18] In an isolated intestinal transplant, the colon will be detached from the small intestine. The cecum and ascending colon are devascularized, while care is taken to preserve major vasculature in the ileum. The jejunum will be ...
The end of the ileum is then brought out through an opening (a stoma) in the abdominal wall. The residual small bowel is reanastamosed with the residual terminal ileum, usually seated inferior relative to the anastomosis. [2] [3] The urine is collected through a bag that attaches on the outside of the body over the stoma.
Bypass of the terminal ileum, which is the specific site of vitamin B 12 absorption, leads to Vitamin B 12 deficiency with a specific peripheral neuropathy. Vitamin A deficiency can induce night blindness. Calcium oxalate renal stones occur commonly following JIB, along with increased colonic absorption of oxalate. The colonic absorption of ...
At some point after the first surgery, Crohn's disease can recur in the healthy parts of the intestine, usually at the resection site. [76] (For example, if a patient with Crohn's disease has an ileocecal anastomosis, in which the caecum and terminal ileum are removed and the ileum is joined to the ascending colon, their Crohn's will nearly ...
The ileum is the last part of the small intestine and is connected to the cecum, a part of the large intestine, via the ileocecal valve. [4] Types of intestinal bypass