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According to the American Society for Bariatric Surgery and the National Institutes of Health, Roux-en-Y gastric bypass is the current gold standard procedure for weight loss surgery and is one of the most frequently performed weight loss procedures in the United States. It is ideal for those suffering from extreme obesity, or those who face obesity-related problems, like sleep disturbance, heart disease, blood pressure, and kidney failure.
Laparoscopic Gastric Bypass Surgery alone is not a stand-alone solution for weight loss. It is an important part of a broader plan that involves dieting and exercise, and its effectiveness will depend on your commitment to the plan.
Most people lose about 6 to 12 kg a month in the first year after surgery. Weight loss will decrease over time, but by following a strict diet and exercise regimen you will lose more weight – and that’s up to half your extra weight in the first two years.
The advantages of weight loss include reduction in asthmatic attacks, high blood pressure, cholesterol, and sleep disturbance. It is also beneficial to those suffering from Type 2 diabetes. Overall, it has positive physiological and psychological benefits.
Laparoscope Bypass is clear advantages over open surgery, where a large cut is made over the stomach region. With laparoscopic surgery, hospital stay is shorter, recovery is quicker, there is less pain, fewer scars and a lower risk of getting hernia.
The operation, which takes approximately two hours, will begin after you have been given general anaesthesia to put you to sleep and ensure you’re pain-free.
In laparoscopic surgery (as opposed to open surgery), the doctor inserts a laparoscope (a small camera) into the body through an incision. Other small incisions are made to permit insertion of the surgical instruments he will need for the operation.
Referring to visual feedback on a monitor from the inserted camera, the doctor will use staples to divide your stomach into a small upper section and a larger bottom section. The top section of your stomach (the pouch) is where the food you eat will go. It is about the size of a walnut, and will hold onlyone ounce of food.
Your surgeon will connect a small part of your small intestine to a small hole in your pouch, so that the food you eat will pass from this small pouch into the lower part of your small intestine, thus bypassing 75–100 cm of the small intestine.
The other end is connected into the side of the Roux limb of the intestine creating the “Y” shape that gives the technique its name.
a) Because the stomach is reduced to a small pouch, food intake is drastically reduced, as is appetite.
b) Because a significant segment of the small intestine is bypassed, the body’s ability to absorb nutrients is also reduced. These two effects, in combination, lead to an80 per cent drop in excess body weight in the first year itself.