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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 transverse colon is not shown so that the Roux-en-Y can be seen. The variant seen in this image is retro colic, retro gastric because the distal small bowel that joins the proximal segment of the stomach is behind the transverse colon and stomach. Illustration of Roux-en-Y gastric bypass surgery
Combined restrictive and malabsorptive techniques are called gastric bypass techniques, of which Roux-en-Y gastric bypass surgery (RGB) is the most common. In this technique, staples are used to form a pouch that is connected to the small intestine , bypassing the lower stomach, the duodenum , and the first portion of the jejunum .
The surgery involves exposing the porta hepatis (the area of the liver from which bile should drain) by radical excision of all bile duct tissue up to the liver capsule and attaching a Roux-en-Y loop of jejunum to the exposed liver capsule above the bifurcation of the portal vein creating a portoenterostomy. [1]
Roux-en-Y gastric bypass surgery involves the creation of a new connection in the gastrointestinal tract, from a smaller portion of the stomach to the middle of the small intestine. [ 4 ] The surgery is a permanent procedure that aims to decrease the absorption of nutrients due to the new, limited connection created. [ 4 ]
The procedure is normally performed laparoscopically, though in a small minority of instances prior surgery may have resulted in extensive scarring, [6] requiring open surgery. Roux-en-Y gastric bypass is a commonly chosen revision technique, [7] particularly in patients who have not been successful in meeting their weight loss goals after ...
From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Gastric bypass surgery#Surgical techniques
Billroth I, more formally Billroth's operation I, is an operation in which the pylorus is removed and the distal stomach is anastomosed directly to the duodenum. [1] [2]The operation is most closely associated with Theodor Billroth, but was first described by Polish surgeon Ludwik Rydygier.