Gastric Bypass Raleigh, North Carolina
The Gastric Bypass (also known as the Roux-en-Y) can be regarded as a restrictive and malabsorptive procedure. Food bypasses the part of the small intestine which includes the duodenum and the initial part of the jejunum. The risk for pouch stretching, breakdown of the staple lines, and leakage of stomach contents into the abdomen are about the same for Gastric Bypass as for vertical banded gastroplasty. However, because Gastric Bypass causes food to skip the duodenum, where most iron and calcium are absorbed, risks for nutritional deficiencies are higher. Anemia may result from malabsorption of Vitamin B-12 and iron in menstruating women, and decreased absorption of calcium may bring on osteoporosis and metabolic bone disease.
With this surgery, first the stomach is stapled to make a smaller pouch and most of the stomach and part of the intestines are bypassed by attaching (usually stapling) a part of the intestine to the small stomach pouch. This significantly limits the amount of food a person can eat in one meal and you absorb fewer nutrients and calories.
Patients are required to take life-long nutritional supplements that usually prevent these deficiencies. Gastric Bypass may cause dumping syndrome, whereby stomach contents move too rapidly through the small intestine. Symptoms include nausea, weakness, sweating, faintness, and occasionally diarrhea after eating, as well as the inability to eat sweets without becoming so weak and sweaty that the patient must lie down until the symptoms pass.
- A small stomach pouch, about the size of your thumb, is created using surgical stapler. This small pouch restricts the amount of food intake by only allowing a small amount of food to be eaten at one time.
- The small bowel is divided, with a surgical stapler, about two feet from the stomach.
- One end of the small intestine is brought up to the new stomach pouch.
- The small intestine that is still connected to the seperated stomach is reconnected to the intestinal track.
- Internal incisions are closed with absorbable sutures and external incisions can be closed with sutures, steri-strips, or staples.
Gastric Bypass Advantages
- Rapid initial weight loss*
- Minimally invasive approach is possible
- Longer experience in the U.S.
- Higher total average weight loss reported than with the LAP-BAND® System
Gastric Bypass Disadvantages
- Cutting and stapling of stomach and bowel are required
- More operative complications than with the LAP-BAND® System
- Portion of digestive tract is bypassed, reducing absorption of some nutrients
- “Dumping syndrome” can occur
Gastric Bypass Risks
Mortality rate: 0.5%
Standard risks associated with major surgery
- Nausea and vomiting
- Leaks from staple lines
- Nutritional deficiencies
Gastric Bypass Recovery Timeline
- Stay is usually 24 to 48 hours
- Many patients return to normal activity within 1 to 2 weeks
- Full surgical recovery usually occurs within about 3 weeks
*Results will vary between patients