Sunday, June 19, 2016

Basics Relating To Bariatric Weight Loss Surgery

By Sarah Johnson


A number of methods can be used to achieve weight loss. The most widely used options in New York involve the making of lifestyle changes including the adoption of healthier diets and engagement in regular physical exercise. These methods are safe and effective for a majority of people. Their main undoing is the fact that they take too long to work and may not be appropriate if one needs to shade off a significant proportion of their weight rapidly. Bariatric weight loss surgery is often the option in such cases.

Bariatric surgery is also known as a restrictive operation. This means that it limits the amount of food that the stomach can hold after a single meal. The amount of nutrients that are subsequently absorbed at the level of the intestines is reduced. Whatever is absorbed is mainly used to generate energy and very little ends up as storage in adipose tissues. Within days and weeks one begins to lose weight.

The two main forms of bariatric operations are gastric banding and sleeve gastrectomy. Although the two are slightly different in the manner in which they are performed, the results are more or less the same. The main difference is that banding is a reversible procedure while gastrectomy is not. The major similarity is that both reduce the size of the stomach.

Gastric banding is performed by placing a silicon based band on the stomach upper portion (also known as fundus). This is achieved through minimal surgical access using an instrument known as a laparoscope. The incisions made are quite small hence there is rarely any need to worry about excessive bleeding or unsightly scars later on. The lower stomach portion forms a small pouch whose capacity is about an ounce of food.

A long plastic tube connects the band to an accessible area under the skin. The role of the tube is to help regulate the compression exerted on the stomach by the tube which effectively increases or reduces its size. This is achieved by injecting or withdrawing a small amount of water (or saline) from the tube. When the saline is injected the size reduces, and when it is withdrawn the compression reduces and the stomach size increases.

This surgery is fairly safe but one should be aware of possible risks that exist. Nausea, vomiting, infections and aversion to food are among the most commonly encountered. Releasing the compression slightly by drawing a bit of saline from the tube helps relieve a number of these symptoms. The compression can then be restored slowly over tome to achieve the original stomach size.

Sleeve gastrectomy involves surgical resection of the stomach with the aim of reducing its size. After the operation only 20 to 25% is left. The structure that is left is more tubular which reduces the transit time of food. Reduced absorption of nutrients, therefore, occurs due to two main reasons: the increased transit time and the reduced intake of food. Side effects here are similar to those of banding.

Recovery from the operations typically takes a few weeks. A liquid diet is recommended for about two weeks after which you can resume your normal diet. Results vary from one patient to another depending on a number of factors that include the initial weight, surgical skills of your doctor, technique employed and so on. Combining the surgery with lifestyle options achieves even better results.




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