Roux-en-Y gastric bypass surgery

In many centers, laparoscopic Roux-en-Y gastric bypass has become the most common bariatric procedure for morbid obesity

In this operation, the stomach is stapled or divided to form a small pouch (typically <30 mL in volume), which empties into a Roux limb of the jejunum of varying length (typically 75-150 cm). 

The Roux limb may be brought up to the gastric pouch in two ways:

  • anterior to the transverse colon (antecolic-anterogastric)
  • posterior to the transverse colon (retrocolic-retrogastric)

There are two anastomoses: a proximal gastrojejunal anastomosis and a distal jejunojejunal anastomosis.

Although any visible defects that might allow potential bowel herniation are routinely closed at surgery 2, the antecolic approach has become preferred at some centers because a retrocolic approach requires bringing the Roux limb through the mesenteries and markedly increases the rate of an internal hernia.

Complications

Early

Early complications of gastrointestinal complications of gastric bypass surgery include 3:

Late

See also

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Article information

rID: 14021
Section: Gamuts
Synonyms or Alternate Spellings:
  • Roux-en-Y procedure
  • Roux-en-Y gastric bypass

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Cases and figures

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    The Roux limb may...
    Figure 1: retrocolic-retrogastric roux limb
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    The same in stand...
    Case 1: with Petersen`s hernia
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    The Roux limb may...
    Figure 2: anterocolic-anterogastric roux limb
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    Small collection ...
    Case 2: with anastomotic leak
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    Upper gastrointes...
    Case 3: Roux limb obstruction
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    Case 3: Roux limb obstruction : CT
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    Case 4: with internal hernia
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