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Roux-en-Y Gastric Bypass

Educational Video

Roux-en-Y Gastric Bypass


Saint Luke’s Hospital is part of the Saint Luke’s Hospital Group, providing top quality medical care to the local community in Los Cabos for more than 12 years.


The hospital has state-of-the-art equipment and facilities and the surgeons have been carefully selected from some of the best surgeons in Mexico, all board certified with specialty licenses in their field of expertise.


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This procedure is the most common gastric bypass surgery performed in the U.S. Gastric bypass surgery will help you drastically lose weight by changing the way the stomach and small intestines cope with the food you eat.


This surgical weight-loss procedure reduces the volume of the stomach so that the patient feels full after eating a small amount of food. It also bypasses part of the intestinal tract so that fewer nutrients are absorbed by the body. In this procedure, a small portion of the upper stomach is stapled to form a small pouch which holds only about 1 oz of food. This will limit the amount of food you can consume.


Next, the Y-shaped portion of the small intestine is connected to the pouch which will allow the food to bypass the duodenum and part of the jejunum (this surgical technique is called a "Roux-en-Y"). This will reduce the calorie intake and absorption of nutrients and can effectively promote weight loss. The procedure is performed laparoscopically, which involves using smaller incisions that can aid quicker recovery.


Post-surgery weight loss is impressive, patients can lose up to 70% of their extra weight. In 12 to 18 months. Many health related problems can improve, such as high blood pressure, diabetes, high cholesterol, sleep apnea and many other weight related disorders. It also provides an improvement in the quality of life.


Dr. Carlos Arturo Diaz heads up the Bariatric Division at Saint Luke’s Hospital. He has successfully performed more than 200 bariatric single incision laparoscopic surgeries, and uses state of the art equipment and the latest technology to provide excellent results at the most affordable prices.


The patient lies down to expose the stomach, and anesthesia is administered. The skin at the surgical site is cleaned. The surgeon creates a series of small incisions in the abdominal area and inserts a laparoscopic camera and tools into the abdominal cavity. The camera allows the surgeon to view the procedure on a monitor.


The surgeon places a line of surgical staples across the stomach to divide it into two compartments. The upper compartment, about the size of a thumb, will be used for food digestion. The lower compartment will not be able to receive food, but will continue to produce digestive juices to aid the digestion process. Several inches below the stomach, the small intestine is divided into two sections. The portion below the incision is pulled up to reach the stomach's small upper pouch. The surgeon creates an opening in the pouch and surgically attaches the intestine to the pouch, creating a new pathway for food. The remaining piece of the small intestine, which hangs from the stomach's lower pouch, is surgically attached to the rerouted section. This allows for digestive juices and other fluids to drain out of the lower stomach and into the intestinal tract. The incisions are closed with sutures or surgical staples. The stomach is then bandaged.


The surgery takes about two to four hours. After surgery the patient is given pain relievers and closely monitored in the hospital during recovery. The stay in the hospital is normally for 2 to 4 days and return to normal activity with two to four weeks.



Gastric bypass surgery is a major procedure and can have many risks which include:


   •  Blood clots in the legs

   •  Serious infection or bleeding

   •  Digestive problems

   •  Leak in surgical attachments to the intestines

   •  Breathing problems

   •  Heart attack or stroke during/after surgery


Risks can be minimized by following the surgeon's instructions before and after surgery.


This information should be used only as a guide to your medical treatment. All specifics will be discussed with your surgeon at your consultation. For more information about gastric bypass surgery contact Saint Luke's by using the “Ask a Question” form on this page.

Dr. Carlos Diaz

Bariatric Surgeon

A general surgeon with


Dr. Beltran

Bariatric Surgeon

A general surgeon with


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