3. Baritric Surgeries

what is roux-en-y gastric bypass?

bariatric surgery that makes a small stomach pouch and connects it to the small intestine

what is done to the stomach during roux-en-y gastric bypass?

a small stomach pouch is stapled off from the rest of the stomach

• laproscopic, involved surgery

in roux en y surgery, where is the new stomach pouch connected?

to the mid-part of the small intestine

what happens to the rest of the stomach in roux-en-y gastric bypass?

it stays in the body but food does not go through it (to keep digestive juices)

why does roux-en-y gastric bypass lead to weight loss?

• the pouch holds less food

• the bypass can reduce nutrient absorption

what nutrient problem can happen with roux-en-y gastric bypass?

you can absorb fewer nutrients and develop deficiencies, like vitamin B12

what is gastric banding?

an adjustable band creates a small stomach pouch with a narrow outlet

does gastric banding cut or remove the stomach?

no

how does gastric banding cause weight loss?

the narrow opening limits how much food can pass through at a time

does gastric banding reduce calorie or nutrient absorption?

no, it mainly restricts intake

who controls the band tightness in gastric banding?

the provider adjusts it

why is gastric banding less effective for some people?

it can fail, including if the band breaks from overeating

what is sleeve gastrectomy?

bariatric surgery that removes most of the stomach and leaves a narrow “sleeve” stomach

• vertical incision, looks like a banana

about how much of the stomach is removed in sleeve gastrectomy?

about 85%

why does sleeve gastrectomy lead to weight loss?

the stomach is smaller so you feel full with less food, hunger decreases

does sleeve gastrectomy reroute the small intestine?

no

after sleeve gastrectomy, about how much can a person eat compared with before?

around 15% of what they used to, but overeating is still possible