How does bariatric surgery work?

Bariatric surgery (gastric bypass, gastric sleeve and laparoscopic gastric band surgery) makes a transformation in the anatomy of your gastrointestinal tract (digestive system), causing physiological changes in your body and producing a change in energy, balance and metabolism.

Regardless of which method you and your specialist surgeon choose as the best for you, it is important to remember that bariatric surgery is just the “tool.” Success depends on other important factors, such as nutrition, exercise, a new lifestyle, among other things.

By modifying the gastrointestinal anatomy, there may be repercussions on the production of intestinal hormones: reduced appetite and increased feelings of fullness. The result is a reduction in the need and / or desire to eat frequently. It is interesting how these changes after surgery have an opposite effect to those produced by weight loss diets. Let’s analyze the differences:

Bariatric surgery and its hormonal changes

Hormonal changes after bariatric surgery improve weight loss by maintaining energy expenditure (calories burned). Some surgeries even increase energy expenditure in relation to changes in body size. Therefore, unlike dietary weight loss, surgical weight loss is more likely to last because a proper energy balance is created.

Bariatric surgery and its hormonal changes

In dietary weight loss, energy expenditure is reduced to lower levels than would be predicted by weight loss and changes in body composition. This unbalanced shift in energy can often lead to weight regain.

With greater weight loss, you will become more physically active. People in a weight loss trend often engage in physical activities such as walking, biking, swimming, and more. Additionally, increased physical activity combined with weight loss improves the body’s ability to burn fat, creates a positive personal attitude, and lowers stress levels. Massive weight loss, as a result of bariatric surgery, also reduces hormones such as insulin (used to regulate sugar levels) and cortisol (stress hormone), and improves the production of a number of other factors that reduce fat absorption and storage.

Bariatric surgery in Vadodara can improve a number of conditions and biological actions (hormonal changes) to reverse the progression of obesity, and can be a useful tool to break the vicious cycle of weight gain and achieve long-term weight loss, improving the quality of health and life.

Long-term weight loss success

Bariatric surgeries result in long-term weight loss success. Studies show that more than 90 percent of people previously affected by severe obesity manage to maintain 50 percent or more of their excess weight loss after bariatric surgery. Among those affected by super severe obesity, more than 80 percent are able to maintain more than 50 percent excess body weight loss.

Improved longevity

Several large population studies found that severely obese people who have undergone bariatric surgery have a lower risk of death than obese people who do not have surgery. One of these studies found an up to 89 percent greater reduction in mortality over a 5-year observation period for people who had bariatric surgery compared to those who did not. Another study found a more than 90 percent reduction in death associated with diabetes and a more than 50 percent reduction in death from heart disease.

The death rate for bariatric surgery (3 out of 1,000) is similar to that for gallbladder removal and considerably lower than for hip replacement. This is an

exceptionally low rate, also considering that the majority of severely obese patients are in poor health and have one or more life-threatening illnesses at the time of surgery. Therefore, when it comes to mortality, the benefits of surgery far outweigh the risks.

Changes in quality of life and psychological state with bariatric surgery

In addition to improvements in health and longevity, surgical weight loss improves overall quality of life. Quality of life measures that are positively affected by bariatric surgery include physical functions such as mobility, self-esteem, work, social interactions, and sexual function. Singleness, unemployment and disability are significantly reduced. Also, depression and anxiety are reduced to high levels.

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