Bariatric Surgery Resource

Gastric Sleeve Success Rates

Success traditionally for all forms of weight loss surgery is deemed as when 50% of the patients excess weight is lost and kept off for 5 years post-surgery. While gastric sleeve surgery was originally considered to be a portion of a phased weight loss surgery approach (typically followed by a duodenal switch) the first 5+ year studies are now being published around the long term effectiveness of gastric sleeve surgery as a stand alone bariatric surgery option.

Early Short Term Studies

So far studies have seen the following results from patients who have had this procedure performed

  • Short term gastric sleeve results indicate that patients can lose 45%-64% of their excess body weight by the 12 month mark.
  • Patients have been known to lose 50 to 70% of their excess weight over a two year period after this surgery
  • Co-morbid condition resolution 12 to 24 months after sleeve gastrectomy has been reported in a study consisting of 345 patients.*
  • Sleeve gastrectomy patients experienced resolution rates for type 2 diabetes, high blood pressure, high cholesterol, and obstructive sleep apnea that were similar to resolution rates for other restrictive procedures such as adjustable gastric banding.*

Long Term Results

A Swiss study recently concluded and found that gastric sleeve surgery patients lost over 57% of their excess body weight 5 years after having the gastric sleeve procedure. This has led rsearchers and doctors to look at this procedure as a viable stand-alone option and not only to be considered a first step before having an additional bariatric surgery procedure.

The study also found that a majority of weight loss occurred in the first year following surgery with a stabilization in most patients for the following 4 years. In addition co-morbidities related to the patients weight were found to be reduced drastically with remission of type 2 diabetes occurring in a majority of patients in the study.

As data continues to come in around the success rate of gastric sleeve surgery there will be continued optimism that the results will follow the initial data that points to a high long term success rate of this procedure coupled with a reduction in comorbidities in a majority of patients.

* American Society for Metabolic and Bariatric Surgery. ASMBS Position Statement on Sleeve Gastrectomy as a Bariatric Procedure. 3 September 2007.