If you have 75-100 pounds or more to lose, gastric bypass surgery may be the ideal option. Gastric bypass surgeon Dr. Oliak and his Orange County gastric bypass program can help you to achieve your long-term weight loss goals by providing expert gastric bypass surgery and quality patient care (education, follow-up, support).*

To learn more about gastric bypass surgery and our premier Orange County gastric bypass program, schedule a no-obligation educational consultation with Dr. Oliak in Brea or Irvine today!

The Gastric Bypass Operation

The gastric bypass operation involves 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, generally using 5 small incisions. The operation typically takes 1.5-2 hours. Patients generally stay in the hospital for 1-2 days, and return to work in approximately 2 weeks.

Patients remain on a liquid diet for 2-3 weeks after surgery, and then slowly transition onto solid foods. Meal portion sizes are typically around 2 ounces when patients start solid food, and slowly increase in size to approximately 6-8 ounces over the first 1 year.

Why Choose Gastric Bypass?

The gastric bypass operation has several distinct advantages compared to the primary alternative operation, the sleeve gastrectomy operation.

The biggest advantage of the gastric bypass operation is that it has been proven to be safe and effective for weight loss over a very long time, >40 years. Many weight loss operations have come and gone over the years, most recently gastric banding, but the gastric bypass operation is still going strong. Currently, around 20% of all first time weight loss operations performed in the United States are gastric bypass operations.
Popularity trends – gastric sleeve, gastric bypass

Other advantages of the gastric bypass operation include: 1) gastric bypass is a better treatment for diabetes than gastric sleeve, 2) gastric bypass is better for acid reflux (gerd) than gastric sleeve, and 3) gastric bypass results in more weight loss in heavier patients (BMI>50) than gastric sleeve (probably).*

The disadvantage of the gastric bypass operation is that it is more invasive and therefore higher risk than the gastric sleeve operation. The above gastric bypass benefits, however, are generally felt to outweigh this disadvantage in certain groups of patients: those with diabetes, those with severe/chronic gerd or large/chronic hiatal hernia, and those with higher initial BMI.

Gastric Bypass Outcomes

The gastric bypass operation has been proven over 40+ years to be a safe and effective operation for weight loss – 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
Gastric bypass risks

The published studies, however, do show significant variation in outcomes between different surgeons and programs. Some surgeons and programs achieve much better weight loss results and much lower complication rates than other surgeons and programs – choice of surgeon/program matters.*

Why Choose Our Orange County Gastric Bypass Program?

Because we provide a high quality of service, and we have an established record of excellent patient outcomes.*

It is important to understand that gastric bypass surgery is not a set, standardized product. Gastric bypass surgery is a service that includes the performance and details of the operation, and the associated patient care (education, follow-up, support). Quality of service varies over a very wide range, from excellent to poor, between different surgeons and programs.

Quality of service is important because it has a strong impact on patient outcomes – weight loss results, complication rates.* Because surgeon/program outcomes statistics are generally not known by patients (or even to the surgeons themselves!), there is not much surgeon incentive to provide high quality of service.

Dr. Oliak and his Orange County gastric bypass program are committed to providing a high quality of service, and achieving not just good, but excellent, industry-leading gastric bypass patient outcomes.
More about our program
More about our patient outcomes

Dr. Oliak’s Gastric Bypass Surgical Technique

Achieving great outcomes starts with performing great surgery. The challenge of performing a great gastric bypass operation is the fact that the operation is not standardized, and it is inherently inexact and subjective. Different gastric bypass surgeons do the gastric bypass operation differently.

Dr. Oliak performs what he calls the measured gastric bypass. He uses a specific measuring technique to construct very exact and consistent gastric bypass anatomy – pouch size/dimensions/shape, stomach/intestine connection size.

The best quality indicator for a surgeon is the surgeon’s record of actual patient outcomes. Orange County gastric bypass surgeon Dr. Oliak has a record of weight loss statistics and complication statistics, using the measured gastric bypass technique, that ranks among the best in the weight loss surgery field (learn more).*

To learn more about gastric bypass surgery and our Orange County gastric bypass program, schedule a no-obligation educational consultation with Dr. Oliak in Brea or Irvine today!

Contact Us

714-582-2530

Gastric Bypass Changes Bodyweight “Set-Point”

Gastric bypass causes weight loss by restricting food intake and by changing the body weight ”set-point” to a lower weight.

Everybody has a “set-point” weight. This is the weight that the body tries to maintain. When a person loses weight to below the set-point, the body responds by increasing hunger, appetite, and cravings, and by decreasing metabolism in an effort to cause weight regain back up to the set-point weight. This biology is what makes losing weight so difficult.
Body weight set-point blocks weight loss

Unfortunately, these body weight control mechanisms often don’t work with weight gain to above the set-point. Weight gain, instead of leading to less appetite and a higher metabolism, often leads instead to a resetting of the set-point to the higher weight!

Weight loss surgery (gastric sleeve surgery, gastric bypass surgery), we are learning, changes this biology. Weight loss surgery, in effect, resets the body weight set-point to a lower weight. To date, weight loss surgery is the only thing we know of that does this. This is the key reason for why weight loss surgery works so much better than other weight loss methods.*
Weight loss surgery changes set-point

The long-term challenge for patients after weight loss surgery is to maintain weight loss. Surgery resets the body weight set-point to a lower weight, but surgery doesn’t change the reasons for why weight gain can occur. Excess calorie intake after surgery can cause weight gain and an increased set-point like it could before surgery. The key to long-term success is establishing good eating and exercise habits to prevent excess calorie intake.

Gastric Bypass Orange County Complications

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, alcohol addiction, bowel obstructions, and ulcers.
More about 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. 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.
Calculate body mass index (BMI)

* 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

Learn more about gastric bypass and our Orange County program

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

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714-582-2530

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