The gastric bypass procedure is a type of bariatric surgery or weight loss surgery designed to reduce your food intake. It is ideal for people who have tried and failed to lose weight through diet and exercise.
Gastric bypass is a complex procedure performed under general anesthesia. This will make you unconscious and you will not feel the pain. Surgery time is approximately one to four hours, followed by a 1-7 day stay in the hospital.
Currently, two techniques are available for gastric bypass:
Roux-en-Y-gastric bypass (traditional and laparoscopic): This is more common and less complicated than the biliopancreatic diversion bypass, since Roux-en-Y does not remove portions of the stomach. The traditional Roux-en-Y-gastric bypass is performed through open surgery with one long incision. This type of gastric bypass can also be performed laparoscopically. The laparoscopic Roux-en-Y-gastric bypass uses multiple smaller incisions. A laparoscopic tool is inserted, which offers a visual guide to the inside of the abdomen during the procedure. The laparoscopic Roux-en-Y produces less scarring and lets you recover faster than the traditional Roux-en-Y-gastric bypass. Biliopancreatic diversion bypass: The biliopancreatic diversion bypass involves open surgery with one long incision, leaving a permanent scar. It is less common and more complicated than the Roux-en-Y-gastric bypass. In this procedure, portions of the stomach are removed and the bypass is attached to the distal illium. This procedure is not widely recommended, because of the risk involved that can lead to nutritional deficiencies.
Gastric bypass can greatly enhance the quality of life by not only improving the physical appearance and an increase in mobility, but also because it can reduce the number and severity of health problems that overweight people are prone to suffer, such as diabetes and heart/circulation problems.
Most people lose about 4 to 9 Kg a month in the first year after surgery. Weight loss will decrease over time, so sticking to your diet and early exercise will yield the better weight loss results. You may lose half or more of your extra weight in the first 2 years. You will lose weight most quickly just after surgery, when you are still on a liquid diet or pureed diet.
Gastric bypass surgery could be an option for you if body mass index (BMI) is 40 or higher (extreme obesity) or if your BMI is 35 to 39.9 (obesity), and you have a serious weight-related health problem, such as diabetes or high blood pressure.
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