About Weight Loss Surgery Outcomes

Outcomes after weight loss surgery (weight loss results, complication rates) are variable between individual surgeons and programs. Some surgeons and programs achieve better weight loss results and lower complication rates than others.*

A recent 2017 study by Ibrahim et al, for example, reported that the rate of serious complications occurring within 30 days of weight loss surgery varied 17-fold (yes, 17-fold!), from 0.6% – 10.3%, across 165 accredited bariatric surgery center of excellence programs nationwide.

This study is revealing. It was a very large study (145,527 patients) with highly credible data from high-quality, accredited bariatric center of excellence programs. The only significant thing that was different between the programs was the surgeon!

Countless other studies show the same thing – outcomes variation between surgeons/programs – although usually in a less direct way than the study above. Studies published by different surgeons/programs show widely different average weight loss results and complication rates for specific complications (e.g. leak, heartburn after gastric sleeve). The obvious conclusion is that the differences in outcomes are due to differences in how the surgeons and programs do surgery and patient care.*
Outcomes vary between surgeons

The bottom line is that weight loss surgery is not a standardized, commodity product. If it were, all surgeons and programs, with adequate training and skill, would achieve similar outcomes. Weight loss surgery can more accurately be thought of a service (and an art), consisting of surgery and patient care.

The details of how the operations are done (e.g. sleeve size and shape, technical quality), and how patient care (education, follow-up, support) is administered, are variable between different surgeons/programs, and these details have a major impact on patient outcomes.
Gastric sleeve operations are not all the same
Choosing the best surgeon

Our Weight Loss Surgery Outcomes

Dr. Oliak’s #1 goal has always been to achieve the best outcomes possible for his patients. By always prioritizing excellent surgery and patient care, Dr. Oliak has established a long record (>2500 operations since 2002) of weight loss surgery outcomes – weight loss results, complication statistics – that rank among the best in the weight loss surgery field.*
About our program

Gastric Sleeve Weight Loss
Dr. Oliak’s gastric sleeve patients average 74-77% EWL (excess weight loss) at 1-3 years after surgery. Dr. Oliak’s sleeve gastrectomy weight loss statistics are better than the industry average gastric sleeve weight loss, which is approximately 55-60% EWL (Gagner et al).*
More about gastric sleeve
More about gastric sleeve weight loss

Gastric Sleeve Leak
The most feared complication after gastric sleeve surgery is leak. Dr. Oliak’s gastric sleeve leak rate is 0%.** Dr. Oliak’s gastric sleeve leak rate is significantly better than the industry average surgeon leak rate. Several large review studies (e.g. Aurora et al) have reported average surgeon leak rates to be in the 2-2.5% range.** Individual surgeon leak rates are reported in the published literature to vary from 0% to as high as 7%.**
More about gastric sleeve
More about gastric sleeve leak

Serious Complications
The Ibrahim et al study quoted above found that the 30-day serious complication rate after weight loss surgery varied between 0.6% and 10.3% across 165 different accredited bariatric surgery center of excellence programs nationwide. Using the same methodology and dates as in this study, Dr. Oliak’s serious complication rate is 0.6%.*
More about this study

Long-Term Gastric Bypass Weight Loss
Dr. Oliak’s gastric bypass patients average 65% EWL (excess weight loss) at 10 years after surgery. The very few good published studies on long-term gastric bypass weight loss (e.g. Pories et al) report an average of 55-60% EWL at 10+ years after surgery.*
More about gastric bypass
More about gastric bypass weight loss

* 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.

** 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 and LAP-BAND® conversion to sleeve gastrectomy.

  • 0%
    our gastric sleeve leak rate**
  • 75%
    our excess weight loss 1 year after sleeve*
  • 65%
    our excess weight loss 10 years after bypass*

Learn more about our Orange County weight loss surgery program

Dr. Oliak offers no-obligation educational consultations in Brea and Irvine to prospective patients considering weight loss surgery. Attending an educational consultation is a great way to learn more about weight loss surgery and our Orange County weight loss surgery program.

Take the next step by calling our office or sending us a contact form today!

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If you are interested in learning more about weight loss surgery and our program, call our office at (714) 582-2530, or send us your contact information using the form below.

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