Mini Bypass Surgery


The mini-gastric bypass is an ideal solution for those who want a greater success rate, less downtime, and long-term weight loss results. Get in touch today to learn more.


Surgery is not a quick fix, it is a part of a larger commitment to reshaping your life. Some elect to have it for cosmetic reasons, others must have it due to their health. Regardless of your reason for considering weight loss surgery, it’s important to know that you’re not alone. Dr. Helmuth Billy has over two decades of experience working with patients from every aspect of their weight loss journey. He is joined by our talented staff of dieticians, sleep specialists, psychiatrists, and educators in giving you the support you need to ensure that your mini-bypass is successful.

Dr. Billy with a patient


The mini-gastric bypass combines some properties of the gastric sleeve and standard gastric bypass procedures. It can be used as a primary weight loss procedure or as a revision surgery option for those who have had lap band-related complications. The operation delivers results with less downtime than most other weight-loss surgeries. The surgical process is as follows:

The mini-bypass begins with the placement of five trocars into the abdomen. A “trocar” is a tool that has a hollow sleeve that allows Dr. Billy to pass a laparoscopic camera and other devices into the abdomen. This step allows him to perform the operation from outside of the body.

An endoscopic stapler is used to divide the stomach into two parts. The small part that connects to the esophagus is reshaped into a narrow tube that will function as a new mini-stomach. This new stomach will only be able to hold 4-6 ounces of food. The old stomach will remain to aid with digestion.

The length of the small intestine is measured. The section that will be bypassed will include all of the duodenum and part of the jejunum. The bypassed section is typically 5-7 feet from where the small intestine connects to the stomach, but this length may vary based on specific patient factors.

The end of the new mini stomach is connected to the bypassed portion of the small intestine using the endoscopic stapler. This connection point is called the “anastomosis.” Sutures will be used to reinforce this connection. Afterward, the trocars will be removed and the surgery will be completed.

Weight loss after the procedure will occur because the new stomach will hold much less food. The food will also bypass the duodenum and part of the jejunum, allowing fewer calories to be absorbed. Certain hormones will also be affected by the surgery, causing a decrease in the desire to eat.

“My dad died at age 49, my sister had a stroke at age 33, to say the least; I was terrified that could end up being me. My whole life I have been overweight, struggling with this diet and that diet only to gain all the weight I did lose back and then some. I am an emotional eater and was headed back down a path of destruction. Sept 29, 2008, was my surgery date, and I say it was the day that Dr. Billy gave me my life back. I know that I have to work hard at this, and I did, I lost 111lbs in 1 year, I went from weighing 240lbs to 129lbs. I now can do all the things I enjoy and things that I never thought that I could do, and I know that I’ll be around long enough to enjoy everything and anything.”

— Chrissy Rucci

How much weight can I expect to lose after a mini-bypass?

Studies conducted over the span of five years on patients who have had a successful mini-gastric bypass have shown positive results. Most patients experienced 75-85% loss in excess body weight after two years and 70-75% after five years.

Is this surgery reversible?

The mini-gastric bypass is less invasive than the standard gastric bypass and doesn’t involve the removal of any part of the stomach. Therefore, the procedure is typically reversible.

What is my risk of regaining weight after surgery?

Along with the surgery decreasing your desire to eat and restricting the number of calories you take in, our providers will also offer you long-term guidance on your nutritional needs. We have dieticians on staff who will work with you to ensure that you do not regain the weight that you lose.

How long is the recovery time?

In most cases, patients are able to return to their daily routines after 1-2 weeks of rest. However, your recovery time may vary depending on your health and the surgical process. Dr. Billy can provide you with support as you recover via our virtual consultation system or over the phone.

Is the mini-gastric bypass covered by insurance?

The mini-gastric bypass procedure is not typically covered by insurance. This operation is often used for patients who are not morbidly obese but are interested in losing weight. However, if you think you may be eligible for coverage under your insurance plan, our insurance coordinator can provide you with a consultation.