Oliak Center For Weight Loss - Brea, Irvine, Orange

Gastric Bypass Surgery in Orange County

Gastric Bypass Surgery in Orange County

If you have 75-100 pounds or more to lose, Gastric Bypass may be an ideal option. The Gastric Bypass operation involves surgically reducing the size of the stomach to approximately the size of a thumb. This will help you to eat less, feel satisfied, and lose weight.

PLAY VIDEO: Our patient Daniel lost 177 pounds after Gastric Bypass »
How to choose - Gastric Bypass, Sleeve Gastrectomy, or LAP-BAND® »

About Gastric Bypass Surgery



Gastric Bypass Diagram

Roux-en-Y Gastric Bypass Surgery is considered the "gold-standard" weight loss operation because it has been proven to be safe and highly effective for both weight loss and the resolution of many medical problems, such as diabetes.

Gastric Bypass Surgery involves constructing a very small stomach pouch (about 1 ounce) and making a connection between the small stomach pouch and the intestine using a Roux-en-Y limb of intestine (see diagram). Weight loss occurs because the small stomach pouch and connection helps patients to eat much smaller portions of food.

Our Orange County Gastric Bypass Program



Our goals are patient safety, great surgical outcomes, and superior weight loss results.

Patient Safety and Great Surgical Outcomes

Achieving superior Gastric Bypass surgical outcomes (low complication rates) requires an experienced and proven surgeon, and an appropriate surgical facility. Our Orange County Gastric Bypass Program has these components (not all do), and our long record of superior Gastric Bypass patient outcomes demonstrates this.
More about Dr. Oliak »
More about our bariatric hospitals »
Our Gastric Bypass surgical outcomes »
About choosing the right program »

Superior Weight Loss Results

In addition to providing quality Gastric Bypass Surgery, we prioritize education, follow-up, and support (many programs don't) to help you successfully establish the eating and exercise habits that will result in long-term weight loss success. The result has been industry-leading weight loss results.
Support after surgery »
Our Gastric Bypass weight loss results »
About choosing the right program »


PLAY VIDEO: Our patient Tami 8 years after Gastric Bypass Surgery


Learn More!



To learn more about Gastric Bypass Surgery and our Orange County Gastric Bypass Program, attend a free, no-obligation educational seminar or a private consultation - call or send us an online contact form today!


Advantages of Gastric Bypass Surgery




Gastric Bypass Works

Gastric Bypass is Safe

  • Low mortality rate 0.1-0.2%
  • Many studies show leak rates close to 0%
  • Important - qualified and experienced surgeon necessary

Gastric Bypass is Laparoscopic

  • Less pain
  • Faster recovery
  • Shorter hospital stay
  • Less scarring

Medical Conditions Improve

  • Weight related medical problems improve
  • Examples include: hypertension, high cholesterol, sleep apnea, joint pains, heartburn, asthma, headaches, infertility, etc.
  • Remission of Type 2 Diabetes occurs in 80-85% of people
  • PLAY VIDEO: "60 Minutes" TV Segment on Gastric Bypass and Diabetes

Patients like Gastric Bypass


More Gastric Bypass Surgery Information


Am I a Candidate for Gastric Bypass Surgery?

Candidates for Gastric Bypass Surgery are generally at least 75-100 pounds overweight (BMI 35 or greater) and have tried and failed to lose weight and keep it off numerous times. What is my BMI? »

Hospital Course

Laparoscopic Gastric Bypass Surgery typically takes 1-2 hours. General anesthesia is necessary and usually five incisions are required. Patients generally are discharged from the hospital 2 days after surgery.

Recovery after Gastric Bypass Surgery

Patients generally recover quickly after surgery. Usually pain is mild and resolves over the first week. Patients usually go back to work within 2-4 weeks.

Follow-Up after Gastric Bypass Surgery

Follow-up appointments are scheduled frequently during the first year after Gastric Bypass Surgery (1 week, 3 weeks, 6 weeks, 3 months, 6 months, 9 months, 12 months). After 1 year we generally see patients at 6 month to 1 year intervals.

Achieving Long-Term Weight Loss Success

Weight loss success after Gastric Bypass Surgery requires a well-performed operation and appropriate eating/exercise habits. Our Orange County Gastric Bypass Program prioritizes both excellent surgery and quality education, follow-up, and support to give you the tools that will help you achieve long-term weight loss success.
Support after surgery »
Our Gastric Bypass weight loss results »
About choosing the right program »

Support after Gastric Bypass Surgery

Our Support Program helps patients to make and maintain the changes that will enable ongoing weight loss success after surgery.


Gastric Bypass Surgery Outcomes


Gastric Bypass Weight Loss Outcomes

Published studies show that Gastric Bypass results in substantial weight loss (average 70-75% of excess weight loss) in the majority of patients. Long-term weight loss outcomes are more variable - some patients maintain their weight loss well, and some patients gain at least some weight back. Long-term results depend on the quality of the operation and patients' eating/exercise habits. This is why choosing a proven surgeon and program is important.

To read more about weight loss outcomes after Gastric Bypass Surgery, and to see our long-term weight loss results, see our Gastric Bypass outcomes page.

Impact of Gastric Bypass Surgery on Medical Conditions

Many medical problems are associated with weight. Examples include diabetes, high blood pressure, sleep apnea, joint pain and arthritis, heartburn, asthma, depression, infertility, urinary stress incontinence, lower extremity swelling and headaches. Published studies show that all weight related medical problems tend to either resolve or improve with weight loss after Gastric Bypass Surgery.

Gastric Bypass Surgery has an especially impressive effect on Type 2 Diabetes. Usually blood sugars normalize within days of surgery, allowing patients to stop their diabetes medications before they are discharged from the hospital. Click below to watch an informative 60 Minutes segment on Gastric Bypass Surgery and diabetes.

PLAY VIDEO: "60 Minutes" TV Segment on Gastric Bypass and Diabetes

Complications after Gastric Bypass

Like with all surgery, there is the potential for complications to occur after Gastric Bypass. Also like with all surgery, complication rates are related to surgeon skill and experience. With Gastric Bypass Surgery, meticulous surgical technique and attention to the small details are important to minimize the risk for complications like leak. For this reason it is important to choose a qualified, experienced, and proven bariatric surgeon.

To read more about potential complications after Gastric Bypass, and to see our complication rates, see our Gastric Bypass outcomes page.

Impact of Weight Loss Surgery on Longevity

There have been multiple published studies (including the highly regarded Swedish Obesity Study published in the New England Journal of Medicine in August 2007) showing decreased long-term mortality in patients who have undergone weight loss surgery. This is because dangerous medical conditions such as diabetes, high cholesterol, sleep apnea and high blood pressure tend to resolve or improve with weight loss after surgery.

Contact Us Contact Us

Dwight's story...

Making the decision to have weight loss surgery was one of the most difficult decisions I have ever contemplated. It was also the best decision I could possibly have made. I researched several doctors and several surgery options before I decided to attend Dr. Oliak's seminar.

After 16 months I am literally in the best shape of my life. Weight loss surgery has been the tool I was seeking for years. Food no longer is controlling me. My wife and kids can hardly believe the changes. The surgery not only helped me, but has made our family healthier. Gastric bypass didn’t just save my life; it gave me a better one.

Read more Gastric Bypass
Success Stories»