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Who Loses Weight After Gastric Bypass Surgery

Armen Hareyan's picture

It is known that gastric bypass surgery does not give equally successful weight loss results to all patients. A new research suggests that diabetics and those with a larger stomach pouches lose less weight than the others do.

Gastric bypass surgery is a procedure when stomach size is being changed to limit the possible amount of food intake. This is being done by creating a stomach pouch which is smaller than the stomach and it helps lose weight quickly, effectively, and safely. However, from 5% to 15% of patients do not significantly benefit from the surgery, and this study reveals who exactly doesn't benefit from this weight loss surgery.

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The study comes from a team of researchers from University of California, San Francisco and examines 361 patients who underwent a weight loss surgery during the period between 2003 and 2006. Participants were followed for a year and 310 patients finished the study. It was defined that 40% excess weight loss is not a good result, but over 40% is a good one.

At the beginning of the study the average body mass index (BMI) was 52, after the study it was 34. Most patients lost weight significantly, but there were 38 patients (12.3%) who reported poor weight loss. Researchers found that diabetics and those with larger stomach pouch after a surgery lost less weight than others did.

Researchers suggest that diabetes drugs may stimulate fat and cholesterol increase while trying to control blood sugar levels. For those with a larger stomach pouch the study suggests sizing balloon used to define the new size of stomach should be replaced by an algorithm, which should take into account patient's anatomical landmarks to estimate the optimal size.

Overall, researchers urge the need of improving gastric bypass surgery results because it is a very effective weight loss treatment, which becomes more and more popular. This study suggests changes in diabetes drugs to improve the weight loss surgery outcomes and help patients fight excess weigh and changes in terms of defining stomach pouch size before the surgery.



My friend is apparently the most successful example of weight loss surgery anywhere in the world. He had his Gastric Bypass Operation 13+ years ago when he weighed 485 pounds and has sustained a weight of 148 pounds after all those years. 485 to 148 pounds = weight loss of 337 pounds. The average surgery loss generally maximizes at about 33% of gross weight in most circumstances. He had his surgery when he was 59 years old (very old for surgery then) and now will be 72 next month. He participated in a survey and found out that he was a definite exception to the rule but it hasn't been followed up about. He has had some complications but seems to bounce back and overcome them all. His blood pressure is 105/65, pulse 56/65 and is in very good health. When I see articles and interviews with weight loss participants who have loss much less weight and most often seem to gain it back after several years until it hits a plateau in the 30/35 percent range I wonder why he has been so special?
Gastric bypass surgery makes the stomach smaller and allows food to bypass part of the small intestine. You will feel full more quickly than when your stomach was its original size, which reduces the amount of food you eat and thus the calories consumed. Bypassing part of the intestine also results in fewer calories being absorbed. This leads to weight loss.</p> <p align="justify">The most common gastric bypass surgery is a Roux-en-Y gastric bypass.</p> <p align="justify">In normal digestion, food passes through the stomach and enters the small intestine, where most of the nutrients and calories are absorbed. It then passes into the large intestine (colon), and the remaining waste is eventually excreted.</p> <p align="justify">In a Roux-en-Y gastric bypass, the stomach is made smaller by creating a small pouch at the top of the stomach using surgical staples or a plastic band. The smaller stomach is connected directly to the middle portion of the small intestine (jejunum), bypassing the rest of the stomach and the upper portion of the small intestine (duodenum).</p> <p align="justify">This procedure can be done by making a large incision in the abdomen (an open procedure) or by making a small incision and using small instruments and a camera to guide the surgery (laparoscopic approach).</p>