Roux-en-Y gastric bypass surgery uses a combination of restriction and malabsorption. During the procedure, the surgeon creates a smaller stomach pouch. The surgeon then attaches a Y-shaped section of the small intestine directly to the pouch. This allows food to bypass a large portion of the small intestine, which absorbs calories and nutrients. Having the smaller stomach pouch causes patients to feel fuller sooner and eat less food; bypassing a portion of the small intestine means the patient’s body absorbs fewer calories.
Advantages of Roux-en-Y Gastric Bypass (RYGB):
- A reasonably low mortality rate (0.2% to 1%).
- Excellent weight loss when compared to Vertical Banded Gastroplasty (VBG).
- Overall improved health.
- Resolution or elimination of co-morbidities (e.g., type II diabetes, sleep apnea, hypertension and more).
Disadvantages of Roux-en-Y Gastric Bypass (RYGB):
- Disruption of the staple line can lead to leakage or serious infection.
- Possible malnutrition or anemia.
- Possible obstruction of the GI tract.
- Risk of a hernia.
- Risk of chronic vomiting and diarrhea, or dumping syndrome.
- Various other post-surgical complications.
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