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Relating to procedureGastric Bypass for Bariatric Surgery: What You Need to Know
March 16, 2010
Gastric bypass is a kind of bariatric surgery intended to cut down food intake. Gastric bypass procedures usually create small pouch to limit food intake and bypasses on segments of the small intestine are constructed for malabsorption of food nutrients. The surgery is a complicated procedure performed under general anesthesia. The surgery takes about one to four hours followed by a one-to seven-day stay in the hospital.
How is gastric bypass surgery performed? Gastric bypass currently uses two techniques: Roux-en-Y gastric bypass and biliopancreatic diversion bypass.
Roux-en-Y gastric bypass or RGB
Roux-en Y gastric bypass or RGB is the most commonly employed procedure in the United States. It is less complicated and is least likely to result in nutritional difficulties.In the procedure, a small stomach pouch is created by stapling part of the stomach together to limit food intake. A Y-shaped section in the small intestine is then attached to the pouch to reduce calorie and nutrient absorption. The pouch is commonly referred to as stomach stapling.
RGB can be done in two ways: traditional and laparoscopic Traditional Roux-en-Y gastric bypass is performed by open surgery with one long incision. Laparoscopic Roux-en-Y gastric bypass uses a thin instrument called laparoscope so that the surgeon can view the inside of the abdomen on a TV monitor. Laparoscopic RGB produces less scarring and lets the patient recover faster.
Biliopancreatic diversion bypass
Biliopancreatic diversion bypass is a more extensive bypass operation.It is a complicated gastric bypass that aims for a smaller stomach.Unlike RGB, the procedure removes the lower portion of the stomach and a small pouch is left to connect directly to the final segment of the small intestine. This bypasses both the duodenum and jejunum to cause malabsorption of nutrients. Like to Roux-en-Y gastric bypass, biliopancreatic diversion bypass is employed through open surgery and with one long incision. It leaves a permanent scar. It is not as widely used as RGB because of the risk for nutritional deficiencies.
Benefits of Gastric Bypass
People who undergo bariatric weight loss surgery can achieve significant loss of weight in 2 years. Since a large section of the stomach is bypassed, only a small pouch is left that severely restricts the amount of food that the person can consume. Patients must consume highly nutritious and protein-rich food to meet dietary requirements. Those who undergo the operation will most likely no longer able to tolerate sugars and carbohydrates which contribute to weight loss.
Gastric bypass also has positive effects on common weight-related health problems such as heart disease, hypertension and diabetes. Patients with Type 2 diabetes has been known to improve after the surgery.
