The surgery done to help you in losing weight is called Bariatric Surgery. It works in one or both of the following two ways. The first method restricts the amount of food you can eat by reducing hunger and by causing fullness after a small meal. This is called Restrictive Surgery. It does so by reducing the capacity of your stomach (the organ where food is stored for digestion to begin). The second method causes the food to bypass the area where it is to be digested and absorbed. Hence, the food will only be partially digested, and only some part of it will be absorbed. This is called Malabsorptive Surgery.
Both of these mechanisms lead to a decreased availability of calories to the body leading to consumption of stored fat. This leads to gradual, sustained weight loss. After the target weight is reached, the weight stabilises as a result of a balance between the body's requirement and calories consumed.
There are a number of surgeries available for weight loss. Some of them are purely Restrictive and some are combined Restrictive and Malabsorptive. The various types of surgeries are
These are well established and accepted methods of Bariatric Surgery the world over.
There are many newer methods being developed and studied. Some of them have shown promising results but their long-term risks and benefits are yet to be determined. Some of them are
These procedures are not yet accepted as standard treatment for obesity.
• Medication - There are some medications which are available to help lose weight but most of them are associated with significant side-effects, some of which may be troublesome.
• Herbal Products - There are a lot of herbal products also available, but it is difficult to determine their efficacy and safety.
• Weight Loss Surgery (Bariatric Surgery)- Surgery is an important method to help you lose weight, especially in people who are extremely obese (BMI more than 35, 33 in Asian populations). The surgery is not plastic surgery (which is used to remove fat from various parts of the body in order to give shape to the body), but it changes the way you feel hunger and the way you eat. It will cause you to lose weight gradually over a period of time (typically one and a half to two years) and will allow you to lose more weight than any other method (typically 60-70% of your excess weight). It is also currently the only way to lose a large amount of weight and to keep it off. The weight loss you get with surgery is durable weight loss.
Any adult who is morbidly Obese (BMI more than 38 or BMI more than 33 with associated problems due to obesity) is a candidate for surgery provided the risk of surgery is not too high. Surgery is recommended with caution to children below 18 years and people above 65 years of age but can be done if the benefits outweigh the risks.
Apart from weight loss and increase in general fitness, many diseases which are linked to obesity are remarkably improved Bariatric Surgery. Diabetes is improved in a large proportion of individuals and medicines can be stopped in two-thirds. It may come back after many years but the requirement for medicines is reduced. BP is easier to control and medicines may be stopped. Breathing problems like OSA are resolved. Osteoarthritis of knees is improved considerably. Knee replacement surgery can be delayed by losing weight and the results of knee replacement are better if it is done after losing weight. Other problems like Stress Urinary Incontinence, Fatty Liver and high cholesterol are also remarkably improved. Life expectancy is also improved.
Right after surgery, there will be no weight loss as no fat is removed during the surgery. Rather there will be a gradual and sustained weight loss starting with the first month and lasting for up to two years until your weight stabilizes. You can expect to lose more than 60-70% of your excess weight depending upon the type of surgery performed.
Risks of bariatric surgery
There are also other potential problems that you may have to deal with. They are :
Benefits of bariatric surgery
If you are diagnosed with High Cholesterol, it is important to understand and be able to manage it responsibly. What is cholesterol? It is a fat-like substance produced by the liver as well as the food you intake, packaged into particles called lipoproteins. What is Cholesterol's function? Cholesterol is used to produce: Hormones Vitamin D Bile
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