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Obesity (bariatric) Surgery: |
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Roux-en-Y gastric bypass: This operation is done for morbidly obese patients in which the stomach is converted in to a small pouch of 20 to 25 ml and this pouch is joined to the small intestine. |
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Sleeve Gastrectomy: A part of the stomach is removed along its long axis so the stomach will function only as a conduit rather than a reservoir. |
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Laproscopic Gastric Banding |
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A band is placed around the outer walls of the upper most part of the stomach, creating a small pouch with a narrow opening into the remaining stomach. However this band can be adjusted by the surgeon to increase or decrease restriction depending on the patient’s weight loss progress Surgery can be reversed.
There are no changes in the normal digestive pattern.
Results:
In a study three years after surgery, the average maintained loss was about 36% of excess weight body weight. |
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Laproscopic Biliopancreatic Bypass |
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Laproscopic Biliopancreatic Bypass with Duodenal Switch |
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It is a combination of lower level of restriction with a high degree of malabsorption. Stapling is used to create a sleeve of stomach retaining the natural stomach outlet. The majority of the small intestines are bypassed causing nearly complete malabsorption of food contents.
Results:
i. Studies show that patients have achieved excess weight loss of 74% in a year, 78% in two years, 81% in three years and so on.
ii. Provides less restriction of food consumed than other procedures discussed.
iii. Provides highest levels of malabsorption of the mixed categories.
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Revision Bariatric Surgery |
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Gastric Bypass |
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Approximately 50% or one half of the stomach is removed, thus causing the restriction of food intake This also reduces the acid output from the stomach The small intestine is divided roughly in half. One end is attached to the stomach pouch to create an alimentary tract or food channel moves through alimentary limb with little absorption of food
Results:
i. Studies show that patients have achieved excess weight loss of 74% in a year, 78% in two years, 81% in three years and so on.
ii. Patients are able to eat larger meals in comparison to those that have a purely restrictive procedure |
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