Basic Information On Weight Reduction Surgery

By Kathy Kaufman


Weight reduction surgery or bariatric surgery describes a series of surgical procedures that are performed on obese persons. In the process the stomach is reduced in size by removing a portion. This is achieved by use of what is referred to as sleeve gastrectomy or a simple gastric band. Another option involves the resection and diversion of the small gut to the stomach. Such a procedure is very beneficial to persons that have underlying medical conditions such as diabetes and hypertension. It reduces the risk of complications in these persons.

It is recommended for people with a minimum body mass index of forty and those with existing medical conditions in which obesity is a predisposing factor. Such conditions may include diabetes, hyperlipidaemia, hypertension and impaired glucose tolerance. Surgery is considered when all other programs including exercise, diet and drug therapy have failed.

The benefits and risks of the procedure should be considered in full before a decision is made as to whether or not to have it. Most common complications that should be considered are malabsorption syndromes and gall bladder diseases. There is a high risk of patients getting into depression and as such pre-operation counselling is warranted.

There are three surgical options that one may choose from. The common thing about them is that they are aimed at minimizing the recurrence of obesity and to encourage loss of weight. These are broadly classified into malabsorptive, restrictive and mixed type. In the malabsorptive procedure, the aim is to encourage malabsorption of some components in food. Such a procedure includes, for example, what is known as billiopancreatic diversion that is usually accompanied with a duodenal stitch (BDS/DS). The main downside is that some essential nutrients may not be absorbed and this often results in metabolic diseases.

The restrictive procedure is one that minimizes eating by restricting the stomach volume. Persons that have undergone this type often get satisfied earlier than normal. Vertical banded gastroplasty is one of the procedures that can be used here. It involves the permanent placement of staples on the stomach in a manner that results in the creation of a smaller pouch. It is the safest.

In sleeve gastrectomy, the stomach is reduced to 85% its original size. A huge portion of the stomach following the greater curvature is removed. This makes the stomach look more like a tube or shaped like a banana. It is a permanent procedure done under laparoscopy. Although the volume of the stomach is reduced, it still works normally and the patient can be able to take in small amounts of food at a time.

The diet of the patient after surgery becomes restricted to liquid foods such as broth, fruit juice and gelatin desserts that are sugar free. This kind of diet is maintained until the alimentary canal recovers from the surgery. The next diet is composed of blended substances which are sugar free, consisting of foods such as cream soup, skimmed milk, protein drinks among others.

As with any surgical procedure, there are a number of side effects associated with weight reduction surgery. Persons that have had this operation frequently have difficulties absorbing calcium. As a result, they often get various forms of metabolic bone disease of which osteopenia and secondary hyperparathyroidism are clinical features. The fact that loss of weight has occurred suddenly predisposes these individuals to gall stone formation. Other complications include reduced absorption of essential nutrients such as folate, iron, vitamin B12 and thiamine.




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