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Treatment

Gastric Bypass Surgery

Surgical Procedure

Gastric bypass surgery is a bariatric operation that divides the stomach into a small upper pouch and a much larger lower remnant pouch, then rearranges the small intestine to connect to both, producing a marked reduction in the stomach's functional volume and an altered physiological response to food. Surgeons have developed several distinct ways of reconnecting the intestine, giving rise to several different gastric bypass procedures, and the operation is prescribed to treat severe obesity, generally defined as a body mass index above 40, along with related conditions including type 2 diabetes, hypertension and obstructive sleep apnea. A 2021 meta-analysis of more than 174,000 participants published in The Lancet found that bariatric surgery was associated with a 59 percent reduction in all-cause mortality among obese adults with type 2 diabetes and a 30 percent reduction among obese adults without diabetes, though as with any surgery, complications can occur.

Facts
Origin Year
1966 2
The cited source states plainly that Edward Mason introduced the first gastric bypass surgery in 1966.
Classification
Status
Standard of Care 1
Connections

Treats

Sources
1. Wikipedia
Wikipedia contributors, Wikimedia Foundationhttps://en.wikipedia.org/wiki/Gastric_bypass_surgery, lead section
Quote, https://en.wikipedia.org/wiki/Gastric_bypass_surgery, lead section
Gastric bypass surgery refers to a technique in which the stomach is divided into a small upper pouch and a much larger lower "remnant" pouch, where the small intestine is rearranged to connect to both.
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2. Wikipedia: Edward E. Mason
WikipediaLead section
Quote, Lead section
Mason introduced the first gastric bypass surgery in 1966 and was the inventor of the first vertical banded gastroplasty surgery in 1980.
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Wikipedia: Gastric Bypass Surgery
WikipediaLead section
Quote, Lead section
Surgeons have developed several different ways to reconnect the intestine, thus leading to several different gastric bypass procedures (GBP).
View the Source
Frequently Asked Questions

When was gastric bypass surgery first introduced, and is there only one way to do it?

Introduced in 1966 by Edward E. Mason, and it now covers several different procedures.

Edward E. Mason introduced the first gastric bypass surgery in 1966. Since then surgeons have developed several different ways to reconnect the intestine after the stomach is divided into a small upper pouch and a larger lower remnant, so the name covers several distinct gastric bypass procedures rather than one single operation.
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