What Is the Mini Gastric Bypass Surgery?

The mini-gastric bypass, or single anastomosis gastric bypass, is an effective and well-established procedure which combines some of the properties of a gastric sleeve and a standard gastric bypass. The upper part of the stomach is divided into a tube, similar to the top three quarters of a sleeve, and then joined to a loop of intestine.

The mini-gastric bypass can be used as a primary weight loss procedure. It can also be used in patients who have had previous gastric banding or sleeve surgery but have been unsuccessful with weight loss.

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A mini gastric bypass surgery is a modified version of the traditional roux-en-y bypass commonly known as the gastric bypass. The mini-gastric bypass procedure is performed laparoscopically under general anaesthesia. The top of the stomach is stapled to form a thin tube. The thin tube becomes the new, smaller stomach and is completely separate to the rest of the stomach. This stomach is then sewn to a loop of the small intestine, bypassing the first part of the intestine called the duodenum and approximately 150–200cm of the bowel. The rest of the stomach and upper part of the small intestine remains in the body but is no longer used for food digestion.

The mini-gastric bypass procedure is restrictive and malabsorptive. This means that the procedure reduces the size of your stomach, restricting the amount you can eat. The procedure reduces the absorption of food by bypassing up to 6 feet of intestines.

Mini Gastric bypass

Why choose the Mini Gastric Bypass?

  • Shorter operating time

  • Less re-routing of the intestines 

  • One fewer anastomosis or connection of the intestines, which could mean less chance of a complication

  • Similar weight loss and recovery to the gastric bypass

  • 95% of  mini gastric bypass patients lost more than 50% of their excess body weight*

Mini Gastric Bypass Disadvantages*

  • Mini gastric bypass surgery increases your risk of bile reflux, so it is not generally recommended for patients with GERD (Gastroesophageal Reflux Disease)

  • Risk of intestinal ulcer requiring re-operation is about 1 %

  • Not a formally approved weight loss surgery in the US

  • It is not covered by insurance

    *Dr. del Pino and his team will work with you to minimize these risks through continual patient observation, and diet and exercise management.

What is the Mini Gastric Bypass Procedure?

Dr. Mario del Pino explains what is the Mini Gastric Bypass Procedure. Learn more about this procedure, what to expect, and its benefits.

¿Qué es el mini Bypass Gástrico?

El Dr. Mario del Pino explica el procedimiento del Mini Gastric Bypass. ¿Cuáles son los resultados? ¿Cuáles son los riesgos? ¿Cuáles son los beneficios?

Patient Testimonials

  • “I cannot thank Dr. Mario Del Pino enough for changing my life. I started my weight loss journey with a Gastric Sleeve on 10/30/21. I was 330 pounds, depressed, and low energy. I could not even walk a 5K with my mom (also sleeved) without having to take breaks! I am now down to 195 pounds! My mom and I can power walk a 5k in 38 minutes, and we race each other when we see the finish line! I feel great, I'm happy and healthy again, and my back and feet don't hurt anymore! I feel like my life has been given back to me! A million thanks to Dr. Del Pino!“

    Amber Murphy

  • "I had a Gastric Bypass in December 2017 and I couldn’t be more satisfied with the results. Before the surgery I was weighing 340 lbs and on multiple medications. I lost over 100 lbs and no more symptoms or medications! I work out on a regular basis and feel much better. The surgery added years of life! I highly recommend Dr. Del Pino along with his support staff."

    Gilbert Conde

  • “Having surgery 2 years ago was the best decision of my life. He did his part and I have done my part and have lost 190 lbs with no regain. Have not had any problems. Dr. Del Pino was very honest and explained procedure thoroughly and eased all my fears. His staff was so amazing and helpful. He is very caring and compassionate in helping those who suffer obesity. Love this doctor, he’s the best Thank You Dr. Del Pino for helping me get my life back. “

    Mary Elizabeth

  • “From over 270 lbs in 2019 to 175 pounds today after a Gastric Sleeve. I was a size 18-20, and now I am a 6-8. In 2019 I walked into Dr. Del Pino's office feeling defeated, with insulin resistance, high blood pressure, and no desire to leave my home. Now I've done over 130 5ks, 6 10ks, 4 duathlons, 5 half marathons, and have been a member of Orange Theory Fitness for 4 straight years! I am a member of their run club, as well as a frequent in-studio assistant for new members! Thank you to Dr. Del Pino and staff for helping me get to a happier, healthier place; not just for me, but also for my family!”

    Angela Ann Murphy

  • "It has been 1 year and 7 months since I had the Duodenal Switch and I couldn’t be any happier with my results. I am down 215 lbs! I am forever grateful to Dr. del Pino, he’s the best!”

    Jacqueline Olivares

  • “There is no better time to take back control of your health and body than right now. Weight loss will help eliminate so many health issues since so many diseases are influenced by excessive weight. The sooner that you start, the sooner you will be on your way to a healthier "you". I personally want to encourage you. I have lost 260 pounds. I have regained my health and self-esteem.”

    Mark Free

  • I had a Gastric Bypass on May 2021. 300 lbs on left and 150 lbs on the right. I was diabetic and had Severe Obstructed Sleep Apnea. Off all medications! I'm feeling very energetic and full of life. Feel like I can accomplish anything that life brings me. Thank you Dr. Del Pino. God Bless you always.

    Ruben Nordhausen

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