Mini gastric bypass surgery in Mexico, also known as One Anastomosis Gastric Bypass (OAGB), is a bariatric procedure that creates a smaller stomach pouch and reroutes a portion of the small intestine, aiming to promote weight loss and improve obesity-related health conditions.
The Mini Gastric Bypass is a newer version of the traditional Gastric Bypass. It is both restrictive and malabsorptive. The main difference is that it is a less complicated procedure because it bypasses 2m of the small bowel.
According to Dr. Jorge Castillo founder of Tijuana Bariatric Surgery this procedure also has less likelihood of a staple “leak” than the standard Gastric Bypass because it requires only one anastomoses (surgical join), compared with standard Gastric Bypass, which requires two.
Mini Gastric Bypass is simpler than traditional gastric bypass, has fewer complications, requires shorter hospital stays, and achieves excellent weight loss outcomes.
The stomach is cut and divided into two sections. The new, smaller stomach is shaped like a long tube. The small intestine is measured down from the stomach, a loop is formed, and the top of the loop is connected to the stomach.
This new connection of two tubular parts that typically do not attach is called one anastomosis. As a result of the procedure, food no longer passes through the larger portion of the stomach and part of the small intestine.
The mini gastric bypass is considered a metabolic procedure because it changes how your body processes food. It works in three ways.
Safe, Effective Weight Loss Surgery
According to a 2022 study, people who underwent one anastomosis gastric bypass had a lower complication rate and shorter hospitalization stay when compared to Roux-en-Y. It had a complication rate and hospitalization length similar to sleeve gastrectomy.
Expected Weight Loss from Mini Gastric Bypass
A 2020 study reported that the average person experienced up to 73% excess weight loss compared to 60% for Roux-en-Y after five years. Some studies have demonstrated superior weight loss with one anastomosis gastric bypass compared with gastric sleeve, while others report similar weight loss.
Improvement of Obesity-Related Conditions
The 2020 study found that the average person experiences improvement in obesity-associated conditions, including diabetes, insulin resistance, high cholesterol, hypertension, liver disease, and sleep apnea. Improvements are also seen in osteoarthritis and breathing problems.
Lower Complication Rates
Because only one anastomosis, or connection between the stomach and intestine, is made, there is less chance for complications to occur.
Lower Ulcer Risk
Bile acid now flows from the stomach and acts as a protective coating for the lining of the small intestine. This reduces the risk of ulcers.
Dumping Syndrome
While some consider dumping syndrome a disadvantage, it can be beneficial in helping people avoid triggering foods that are high in sugar and carbohydrates. When dumping occurs, it’s temporary and unpleasant and causes bloating, abdominal pain, nausea, diarrhea, sweating, and facial flushing. However, dumping syndrome also changes cravings within the brain and helps you follow dietary guidelines.
Less Risk of Leaks, Bowel Obstruction, and Hernia
Because there is only one small intestine connection, there are fewer locations for leaks to occur. Internal hernias and small bowel obstruction are uncommon complications.
It’s Reversible
It is possible to return your anatomy to normal because nothing is removed.
