Expected weight loss after bariatric surgery

How much weight will I lose after weight loss surgery?

Bariatric surgery for people with morbid obesity is associated with significant weight loss that is maintained for at least 8 years, whereas there is little sustained weight loss with conventional treatment in this group of patients. Surgery is also associated with improved quality of life and reduced co-morbidities (illnesses associated with being overweight).

Bariatric surgery can help people lose 60% of their excess weight improving their overall health and general well being which can prolong their life by up to 9 years.

Bariatric surgery can transform health status - studies have shown that Diabetes was completely resolved in 77% of patients and resolved or improved in 86%. High blood fat levels were reduced in 70%, and high blood pressure resolved in 62%.

When compared with conventional treatment, bariatric surgery has been shown to result in a significantly greater loss of weight (23 – 37 kg more weight), which was maintained at 8 years. As a consequence, there were improvements in quality of life and co-morbidities associated with the loss of weight from weight loss surgery.

Comparison of the different types of surgery showed that gastric bypass appeared more beneficial, with a greater weight loss (6 –14 kg more weight) and/or improvements in co-morbidities and complications than either gastroplasty or jejunoileal bypass.

In a recent study published last year looking at both gastric banding and gastric bypass (Roux-en-Y) the following results were found.

This paper looked at 15 studies internationally comparing laparoscopic gastric banding and gastric bypass. It found that after one year people with a lap band lost on average 48% of their excess body weight, while people who had a gastric bypass lost on average 76% of their excess weight. Excess weight is the amount of weight that you would need to lose to become a healthy weight. In other words, the weight you would be to have a Body Mass Index (BMI) of 25.

The paper also looked at the effect of the weight loss surgery on diabetes. People who had gastric bypass and diabetes, for 78% of them, the weight loss surgery resolved their diabetes. The people who had gastric banding and had diabetes, 48% of them had resolution of their diabetes.

Therefore, weight loss surgery or bariatric (meaning ‘heavy’ in Greek) surgery as it is also known, helps people become lighter and healthier.

For more information, to see whether bariatric surgery is right for you or to book a free no obligation consultation with our experts at one of our UK Bariatric surgery centres call us on 0800 849 4050 or fill in our enquiry form here.

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