What Is Roux-En-Y Gastric Bypass Surgery?

Gastric bypass is a type of weight loss surgery that can be performed using traditional techniques or robotically. This surgical procedure limits your food intake and restricts the number of nutrients and calories the body can absorb. It also affects the hormone responsible for hunger as well as the hormone that controls metabolic responses such as insulin secretion. In fact, studies show that gastric bypass works better than medication for managing Type 2 diabetes or even putting the disease into remission.

  • Gastric bypass was shown to reduce the number of patients’ health problems by 96%
  • 84% of people eliminate or reduce symptoms of Type 2 diabetes
  • often within days of the operation
  • 94% of people see an improvement in high cholesterol
  • Patients lose an average of 60-80% of excess weight

Benefits of Gastric Bypass

  • Can eliminate or improve sleep apnea, hypertension, heart disease, high blood pressure, and gastroesophageal reflux disease (GERD)
  • Can eliminate or improve the Type 2 diabetes
  • Can lead to a longer life expectancy than those who do not have weight loss surgery1

Candidates For Gastric Bypass Surgery

Good candidates for gastric bypass surgery are typically individuals who struggle with morbid obesity, are more than 100 pounds overweight, have struggled to lose weight with diet and exercise alone, have a BMI above 40 or a BMI above 35 with an obesity-related condition, such as Type 2 diabetes.2


BMI Calculator

Understanding your BMI (body mass index) is the first step toward realizing your weight loss goals. Use this tool as a guideline to decide if bariatric surgery is the right option for you.

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How Gastric Bypass Surgery Works

Gastric Bypass Procedure

The gastric bypass procedure begins with the creation of a new stomach which consists of a small stomach pouch that bypasses part of the small intestine to limit the amount of food consumed and the number of calories absorbed. Then, the surgeon attaches a portion of the small intestine that is Y-shaped to the small pouch. This allows food to bypass the first portion of the small intestine called the duodenum and a portion of the second part of the small intestine called jejunum. This results in reduced nutrient and caloric absorption. After the procedure, patients must take vitamin supplements and pay careful attention to diet to ensure that nutritional needs are met.

Gastric Bypass Results

On average, patients who undergo gastric bypass surgery lose roughly 70% of excess body weight.3 Many patients with obesity-related conditions can discontinue or reduce prescription medications after the procedure.4 Individual results can vary depending on the patient’s medical history and ability to adopt lifestyle changes that include a healthy diet and routine physical activity.

Gastric Bypass Recovery

After gastric bypass, recovery time can vary but most patients are able to resume their normal schedule two weeks following surgery. Patients are provided with postoperative and dietary guidelines to adhere to for several weeks following surgery and should plan for several follow-up appointments. Our clinical team along with an in-house nutritionist will be there during your recovery to ensure you have the support you need and can provide you with referrals for physical therapists and personal trainers to augment your ongoing care.

FAQs About Gastric Bypass Surgery

Is gastric bypass a safe weight loss surgery?

Bariatric procedures like gastric bypass surgery are some of the safest surgeries and it is an effective weight loss procedure when performed by specially-trained and experienced surgeons.5 Our board-certified and fellowship-trained surgical team have performed over 10,000 successful surgeries of many types.

Does gastric bypass surgery have any risks?

While safe, gastric bypass surgery does have some risks, like any surgery, which include strictures, leaks in the gastrointestinal system, ulcers, blood clots, dumping syndrome, and complications that are procedure-specific. Other risks include nutritional deficiencies which can be successfully managed with careful monitoring and supplements, such as vitamin B12, calcium, and a multivitamin.6

How much weight will I lose with gastric bypass surgery?

On average, patients will lose about 100 lbs. or up to two-thirds of their excess weight in one year.7 Some people lose a little more, some a little less. Weight loss will continue during the second year at a less rapid rate.

Schedule A Consultation For Gastric Bypass Surgery

You don’t have to face obesity alone. If you’re struggling with this condition and comorbidities like sleep apnea or Type 2 diabetes, our experienced bariatric surgeons have provided successful life-saving weight loss surgeries to numerous satisfied patients. It’s time to give yourself the healthy life you deserve and the first step is to schedule your personal consultation. Contact our healthcare providers today to learn more about your weight loss surgery options.

1 Annals of Surgery. Impact of bariatric surgery on life expectancy in severely obese patients with diabetes: A Decision analysis. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4388039/. Accessed August 18, 2022.
2 Annals of Surgery. Impact of bariatric surgery on life expectancy in severely obese patients with diabetes: A Decision analysis. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4388039/. Accessed August 18, 2022.
3 Journal of Diabetes Science and Technology. Mechanisms Responsible for Excess Weight Loss after Bariatric Surgery. Available:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3208891/. Accessed August 18, 2022.
4 Obesity Surgery. Medication Use Following Bariatric Surgery: Factors Associated With Early Discontinuation. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4016176/. Accessed August 18, 2022.
5 Penn Medicine. Is Bariatric Surgery Safe? Available: https://www.pennmedicine.org/updates/blogs/metabolic-and-bariatric-surgery-blog/2019/may/is-bariatric-surgery-safe#:~:text=Bariatric%20Surgery%20Among%20the%20Safest,compared%20to%20other%20elective%20surgeries. Accessed August 18, 2022.
6 World Journal of Diabetes. Bariatric surgery and long-term nutritional issues. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5700383/. Accessed August 18, 2022.
7 Columbia Surgery. Gastric Bypass Surgery. Available: https://columbiasurgery.org/conditions-and-treatments/gastric-bypass-surgery. Accessed August 18, 2022.

Gaining a New Life

“I lost 350 Lbs and gained a new life – Bypass surgery was the best thing that ever happened to me.”

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