Roux-en-Y Gastric Bypass
(RGB) - Weight Loss
Surgery Operation
The Roux-en-Y gastric bypass operation has
been shown to be the best surgical procedure for the treatment of severe
obesity. (See Fig 1.) Roux-en-Y gastric bypass is called a "restrictive"
operation because the severely reduced size of the stomach significantly
restricts the patient's ability to eat large meals. This facilitates many
patients to lose over 75 percent of their excess body weight over the
first 18-24 months after Roux-en-Y surgery.
Figure 1. Roux-en-Y gastric bypass (RGB)
During Roux-en-Y gastric bypass surgery,
a small stomach pouch is first created to restrict food intake. The capacity
of the stomach is reduced to only 30cc (equivalent to two tablespoons)
by stapling across the stomach with a special metal device. Thus, approximately
90 percent of the stomach is below the staple line and is therefore isolated
from the passage of food through the stomach.
Next, a Y-shaped section of the small intestine
(typically 50-100 cm) is attached to the pouch to allow food to bypass
the lower stomach, the duodenum (the first segment of the small intestine),
and the first portion of the jejunum (the second segment of the small
intestine). This bypass reduces the amount of calories and nutrients the
body absorbs.
Advantages of Roux-en-Y Gastric Bypass (RGB)
- Greatly controls food intake
- Reversible in an emergency
Disadvantages of Roux-en-Y Gastric Bypass
(RGB)
- Staple line failure
- Ulcers
- Narrowing/blockage of the stoma
- Vomiting if food is not properly chewed or if food is eaten to quickly
Source:
National Institute of Diabetes & Digestive & Kidney Diseases
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Weight
Loss Surgery Information
How
Weight Loss Surgery Works - Morbid
Obesity - Morbid
Obesity Surgery
Treatment of Obesity
- Bariatric
Surgery Health Risks - Abdominoplasty
Gastric Banding - Gastric
Bypass - Mini
Gastric Bypass - Gastroplasty
Laparoscopic
Gastric Bypass - Roux
En Y Gastric Bypass - Lap
Band Surgery
Lap Band - Lap
Band FAQs - Biliopancreatic
Diversion - Duodenal
Switch
Liposuction - Liposuction
Surgery - Superwet
Liposuction - Tumescent
Ultrasonic Liposuction
- Tummy Tuck - Mini
Tummy Tuck - Stomach
Stapling
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