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Jejunojejunostomy is a surgical technique used in an anastomosis between two portions of the jejunum. [1] It is a type of bypass occurring in the intestine. It may lead to marked reduction in the functional volume of the intestine. This technique is also performed using Laparoscopic surgery. [2]
Two variants of jejunoileal anastomosis were developed, the end-to-side [1] and end-to end [2] anastomoses of the proximal jejunum to distal ileum.In both instances an extensive length of small intestine was bypassed, not excised, excluding it from the alimentary stream.
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.
Jejunostomy is the surgical creation of an opening (stoma) through the skin at the front of the abdomen and the wall of the jejunum (part of the small intestine).It can be performed either endoscopically, or with open surgery.
Jejunocolic anastomosis was firstly employed. [2] Nonetheless, it led to some unexpected complications such as severe electrolyte imbalance and liver failure. [2] It was then modified to jejunoileal techniques. Viewed as a novel form of treatment for obesity, many intestinal bypass operations were carried out in the 1960s and 1980s. [2]
The greater curvature of the stomach (not involved with the previous closure of the stomach) is then connected to the first part of the jejunum in end-to-side anastomosis. The Billroth II always follows resection of the lower part of the stomach . The surgical procedure is called a partial gastrectomy and gastrojejunostomy.
It involves a side-to-side anastomosis of the pancreatic duct and the jejunum. [1] Technique
The arterial arcades (intermesenteric arterial anastomoses or Riolan arcades [1]) are a series of anastomosing arterial arches between the arterial branches of the jejunum and ileum. Nearest the duodenum the mesenteric loops are primary, the vasa recta are long and regular in distribution, and the translucent spaces (lunettes) are extensive.