Weight Loss Surgery Outcomes Vary By Surgeon/Program

It is important to understand that outcomes after weight loss surgery, which means weight loss results and complication rates, vary significantly between different surgeons and programs.*
Choice of surgeon impacts outcomes
Why outcomes vary by surgeon

For weight loss results after gastric sleeve surgery, for example, published studies show that some surgeons and programs achieve greater than 50% more average weight loss than other surgeons and programs (reference).*

For the complication of leak after gastric sleeve surgery, which is generally considered to be the most feared complication after gastric sleeve, published studies show a wide variation in rates between surgeons, from 0% leak rate to 9% leak rate (reference).**

An important new study just published in April 2017 in JAMA (Journal of the American Medical Association) give us the best evidence yet that choice of surgeon and program is a major determinant of outcomes after surgery (reference).

In this large study (145,527 patients), the rate of serious complications after weight loss surgery was found to vary 17-fold (from 0.6% to 10.3%) across 165 accredited bariatric surgery center of excellence programs nationwide (reference).
Read more about study

Our Weight Loss Surgery Outcomes

Dr. Oliak’s weight loss surgery outcomes, whether weight loss results or complication rates, rank among the best in the field.*

Our weight loss after gastric sleeve surgery, for example, averages 75-80% EWL (excess weight loss) at 1-3 years after surgery. The range of average weight loss varies, depending on surgeon/program, in the published literature from 40-45% EWL to 75-80% EWL (reference). The overall industry average is reported to be 55-59% EWL (reference).*
More about our gastric sleeve outcomes

Our leak rate after gastric sleeve surgery in 0%. Published studies report a range of surgeon leak rates from 0% to 9%. The overall industry average, according to a large review study, is 2.4%.**
More about our gastric sleeve outcomes

Using the same methodology as used in the JAMA study above, Dr. Oliak’s rate of serious complications is less than 1%. This statistic would place Dr. Oliak’s program in the top decile of the 165 accredited bariatric surgery centers of excellence evaluated in the JAMA study above.*

* Patient results vary after weight loss surgery. The weight loss outcomes quoted on this page are averages – individual patients can lose more or less weight than the average. To read more about the patient’s role in achieving good long-term weight loss success, click here.

** Leaks can occur after gastric sleeve surgery. Past leak rates may not be indicative of future leak rates. Dr. Oliak’s 0% leak rate statistic applies to primary (non-revision) sleeve gastrectomy, primary (non-revision) laparoscopic gastric bypass, LAP-BAND® conversion to sleeve gastrectomy, and LAP-BAND® conversion to gastric bypass.

  • 0%
    leak rate**
  • 76%
    excess weight loss 1 year after sleeve*
  • 67%
    excess weight loss 10 years after bypass*

Learn more about weight loss surgery and our program

Schedule a free, no-obligation consultation with Dr. Oliak in Orange County – Brea or Irvine – today!

Free Consult


Free Consult

Call 714-582-2530 or submit the following information to request a free consult. If you have insurance coverage for weight loss surgery (or are self-pay), and you meet the BMI criteria for surgery, we will schedule you for a 30-40 minute educational consultation with Dr. Oliak.

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