If you have at least 75-100 pounds to lose (BMI >35-40), gastric bypass surgery might be the ideal solution to help you transform your life!

To learn more about gastric bypass surgery and whether it’s right for you, attend a free, no-obligation educational consultation with Dr. Oliak in Brea or Irvine. To schedule, call or send us a contact form today!

Gastric Bypass Surgery cartoon

About Gastric Bypass Surgery

Gastric bypass surgery (also known as roux-en-y gastric bypass, or simply bypass) involves surgically creating a very small pouch from the upper part of the stomach, and making a small connection between the stomach pouch and the intestine.

When food is consumed, it passes through the small pouch into the intestine, bypassing the majority of the stomach and the first part of the intestine.

The gastric bypass operation is done laparoscopically or robotically, using small incisions. The operation typically takes 1.5-2 hours. Patients generally stay in the hospital for 1-2 day, and return to work in approximately 2 weeks.

Why Gastric Bypass Surgery?

Reasons to consider gastric bypass include the following:

  • Established – proven safe/effective over >40 years
  • Highly effective for weight loss
  • Minimally invasive – laparoscopic or robotic approach
  • Diabetes remission in high percentage of patients
  • Acid reflux resolution in high percentage of patients
  • High patient satisfaction – patients love it!

Gastric bypass surgery is commonly chosen for patients with diabetes, patients with severe/chronic acid reflux, LAP-BAND® revision patients, and patient with high starting BMI (BMI>50-60).

Currently, 20-25% of all first time weight loss surgeries in the United States are gastric bypass operations.

Patient Testimonials

Gastric Bypass Weight Loss

Weight loss after gastric bypass surgery typically occurs rapidly over 1-1.5 years.*

The better published studies report an average of 70-80% excess weight loss after surgery.* Long-term studies (10+ years) show that patients maintain the majority of their weight loss over time.*

Gastric Bypass Weight Loss

How Does Gastric Bypass Work?

Gastric bypass causes weight loss by restricting food intake and by changing the biology of weight regulation.

Weight loss without surgery (diet and exercise programs) is hard to do, and virtually impossible to maintain, because of biologic mechanisms that work to maintain bodyweight and prevent weight loss.

Gastric bypass surgery changes this biology. In effect, surgery resets the bodyweight “set-point” to a lower weight. With this biology change, long-term weight loss becomes possible!*

Surgery Changes Set-Point

Why Choose Our Orange County Gastric Bypass Program?

Gastric bypass surgeons and programs are not all the same. Different surgeons and programs have different skill and experience levels, and different ways of doing surgery and patient care.

These differences result in differences in patient outcomes. Published studies make clear that some surgeons and programs achieve better weight loss results and lower complication rates than others.*

In Dr. Oliak’s view, the obvious best way to choose a surgeon and program is by actual patient outcomes – weight loss and complication statistics. Other parameters (convenience of location, online reviews, word-of-mouth, insurance, etc.) are just not reliable indicators of quality and performance.

Dr. Oliak’s #1 goal, since starting his career in 2002, has been to achieve the best outcomes possible for his patients. For the outcomes that matter most – weight loss, early major complications (e.g. leak), and late complications – Dr. Oliak’s statistics beat the industry averages.*

Gastric Bypass Weight Loss Gastric Bypass Complications

How does Dr. Oliak achieve excellent, industry-leading gastric bypass patient outcomes? By always prioritizing quality surgery and quality patient care (education, follow-up, support).

Our Program

More About Gastric Bypass Surgery

As described above, gastric bypass surgery entails creating a very small stomach pouch, and making a small connection between the stomach pouch and intestine. An intestine/intestine connection is also made so the bypassed part of the stomach can empty.

The specific details of the gastric bypass operation, such as pouch size/shape/dimensions, stomach/intestine connection technique, and roux limb intestine length, vary between surgeons. There is not a standardized “best way” to do gastric bypass surgery.

Variation in surgical technique, and variation in surgeon skill and experience, are reasons for why patient outcomes (weight loss, complication rates) vary significantly between individual surgeons and programs.

Outcomes Vary At Centers Of Excellence

How Dr. Oliak Does Gastric Bypass Surgery

By closely tracking the details of his gastric bypass surgical technique over more than 1000 operations, and his patient outcomes over more than 15 years, he has learned the technique details that result in excellent, industry-leading patient outcomes.*

Key gastric bypass technique details include the following: 1) create a very small, measured pouch to maximize restriction and minimize long-term pouch dilation, 2) create a rigid and very small pouch/intestine connection (12mm) to maximize restriction and minimize long-term dilation, 3) create a long 125-150cm roux limb of intestine.

To read about Dr. Oliak’s gastric bypass outcomes statistics, see the following links:

Gastric Bypass Weight Loss

Gastric Bypass Complications

Gastric Bypass Surgery Recovery

Because gastric bypass surgery is done laparoscopically (or robotically), recovery is generally rapid. Patients typically are discharged from the hospital 1-2 days after surgery, and return to work 2-3 weeks after surgery.

Gastric bypass patients typically remain on a liquid only diet for several weeks after surgery, and then slowly transition onto solid foods.

Gastric Bypass Surgery Follow-Up

Follow-up after gastric bypass surgery is important to help ensure safe and effective weight loss.

Gastric bypass surgery is a tool that assists patients with weight loss. Achieving good long-term success requires that the tool be used appropriately. Follow-up (education, guidance, support) helps patients to use the surgical tool effectively.*

How Dr. Oliak Does Gastric Bypass Follow-Up

Dr. Oliak prioritizes frequent follow-up early after surgery. He generally sees patients after surgery at 1wk, 2wks, 5wks, and then monthly until weight loss progress is such that goal weight will be achieved at 1 year.

Because the body adapts to gastric bypass surgery over time (restriction decreases), it is important for patients to take advantage of the early months after surgery to lose as much weight as possible. Not taking full advantage of the early restriction will limit ultimate weight loss.

When patients come in for follow-up, Dr. Oliak evaluates whether weight loss progress is on track for achieving goal weight. Based on this, Dr. Oliak can discuss with patients what changes should be made, and what goal weight should be for the next visit.

Frequent follow-up early after surgery is one of the key reasons for why our gastric bypass Orange County weight loss statistics are better than the industry averages.*

Our Program

Gastric Bypass Orange County – What Are the Risks?

Although the gastric bypass operation has been established over decades to be safe, complications can occur.

Potential early postoperative complications include blood clots and leaks. The risk for blood clots and leaks can be minimized with quality surgery and good patient care, but not completely eliminated.

Potential long-term risks include nutritional deficiencies, low blood sugar, alcohol addiction, bowel obstructions, and ulcers.

Gastric Bypass Risks

Gastric Bypass Orange County – Am I a Candidate?

Gastric bypass Orange County candidates are generally at least 75-100 pounds overweight (BMI 35 or greater), and have tried and failed to lose weight and keep it off.

BMI Calculator

Insurance companies generally require patients in the BMI 35-40 range to have weight-related medical problems, such as diabetes, high blood pressure, or sleep apnea.

Insurance companies often have additional requirements, such as the completion of a 3-month or 6-month medically supervised diet.

About Insurance

* Patient results vary after weight loss surgery. Individual patients can do better or worse than the average.

  • 1-2 hours
    typical surgery duration*
  • 1-2 days
    typical hospital stay*
  • 1-3 weeks
    typical return to work*

Gastric Bypass before & after

See more
  • Tami
  • Procedure:Gastric Bypass
  • Weight Lost: 75 lbs
  • Excess Weight Lost: 85%
  • Disclaimer: Individual results vary
I had gastric bypass 8 years ago with Dr. Oliak and I would do it again tomorrow. It was the…
Read More

Schedule an educational consultation with Dr. Oliak

Learn more about gastric bypass surgery and our Orange County gastric bypass program by attending a private educational consultation or a group informational seminar with Dr. Oliak in Brea or Irvine. Call our office or send 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, and we will contact you.

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