What is the failure rate of bariatric surgery in Turkey

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those complexities in mind, a common definition of failure is loss of less than half of a person’s excess weight (%EWL is excess weight carried above a Body Mass Index of 25kg/m2). Most of my patients express disappointment if they’ve only had 50% excess weight loss, but the reality is that even surgery has limited power to assist a person to manage their weight.

Additionally, all surgeries are most effective in the first five years, and less effective after that. And obtaining reliable data about follow up for more than 5 years after surgery has always been very difficult.

Operation

Failure Rate at 5 years
Success Rate
Lap-banding
About 30%
Mean weight loss at 10 years is 49% of excess weight
Sleeve Gastrectomy
About 20%
Mean weight loss at 10 yrs is 55-60% of excess weight
Gastric bypass
About 20%
Mean weight loss is 10 yrs is 55-60% excess weight

Another definition of failure is that the surgery is reversed (eg removal of a gastric band). Different studies have different rates of band removal, depending on the enthusiasm of the surgeon to persist with the band, but it is generally 20% of cases. In our clinic it is about 6%.

Another reason to consider an operation to have failed, is the need to do further surgery because of side-effects, eg a bypass after a sleeve for severe reflux.

Whilst this is all discouraging, a problem with these definitions is that they don’t recognise that there are often significant health benefits and improvements in quality of life with less weight loss, For instance, excess weight loss of 30%, that might be classified as a ‘failure’ may result in resolution of diabetes, high blood pressure or sleep apnoea. The patient experiencing these health benefits may not consider their results to be a failure at all!

Additionally, there is no doubt that on average a patient will have a longer, healthier life after weight loss surgery than if they didn’t have it done.

We would love to be able to predict those patients who will fail with bariatric surgery, but this has never been possible with medical or psychological assessment.

But if you want to maximise the chances of success, there is no doubt that seeking to have your care managed in a clinic with a multidisciplinary team will improve your chances. Weight loss surgery is not the complete answer. It also requires education, follow-up, ongoing nutritional assessments, dietitian input, and often psychological support to get the best results.

*Reference Obesity Surg 2019 Jan;29(1):3-14, P. O’Brien et al “Long-Term Outcomes After Bariatric Surgery: a Systematic Review and Meta-analysis of Weight Loss at 10 or More Years for All Bariatric Procedures and a Single-Centre Review of 20-Year Outcomes After Adjustable Gastric Banding.”

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