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Professional Technical IVT

Roux-en-Y

Pronunciation: roo-on-WHY

Surgical reconstruction creating a Y-shaped anastomosis using a jejunal limb.

Full Definition

A surgical reconstruction technique named after Swiss surgeon César Roux, creating a Y-shaped configuration using a divided jejunal loop. The procedure involves dividing the jejunum and bringing the distal end up to create an anastomosis, while the proximal end is connected downstream, forming the characteristic Y-shape. Common applications include gastric bypass for obesity, hepaticojejunostomy for biliary reconstruction, and pancreaticojejunostomy after pancreatic resection. The configuration reduces bile reflux and provides excellent drainage.

Usage

Usage note: Hyphenate as 'Roux-en-Y'; capitalize as proper noun derived from surgeon's name.

In Context

  • "Roux-en-Y gastric bypass was performed with a 150cm alimentary limb." — Operative report
  • "Hepaticojejunostomy using Roux-en-Y reconstruction completed the biliary drainage." — Operative note

Also known as

Roux limb Y-anastomosis

Don't confuse with

end-to-end anastomosis Billroth procedure

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