Roux-Y Gastric Bypass
(RYGB)
Description of Surgery:
 The RYGB combines both restrictive as well as malabsorptive techniques to
improve weight loss.
 The stomach is made smaller by creating a
small pouch with surgical staples that holds
about 1-2 ounces (the size of an egg).
 The smaller stomach is then attached to
the middle section of the small intestine
bypassing the first portion of intestinal
tract.
 This procedure can be done using small
incisions in the abdomen (laparoscopic
technique) or by creating a large incision in
the abdomen (open technique).
Things to Think About:
 Only small portions of food can be
consumed.
 Concentrated sugars must be avoided due
to “dumping syndrome”.
 Life-long B-12 supplementation (by
injection every month or daily by pill).
 Because the part of the intestine that absorbs minerals and vitamins is
bypassed patients may have iron, calcium, magnesium, and vitamin
deficiencies.
 Gastric bypass is irreversible
Results:
 Weight loss varies in individual patients but weight loss is generally excellent
(50%-70% of excess weight).
 Peak weight loss typically occurs between 12 and 18 months.
 Very good long-term results > 20 years.
 Greater than 87% long-term patient satisfaction.