Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) is an innovative hybrid procedure that combines the restrictive effect of a sleeve gastrectomy with the metabolic benefits of the mini gastric bypass, using a single intestinal connection (anastomosis). It’s a modern, simplified alternative to more invasive surgeries like the traditional duodenal switch or SADI-S.
Dr. Jacqueline Osuna is proud to offer SASI-S in Tijuana and Guadalajara, Mexico. With over 15 years of experience in advanced bariatric procedures, our team is among the few in Mexico with the expertise to perform this advanced weight loss surgery safely.
SASI-S Surgery
During SASI-S, about 70% of the stomach is removed, forming a narrow gastric sleeve that limits how much food you can eat. The lower end of the sleeve is then connected to the distal portion of the small intestine, allowing food to bypass part of the bowel. This restricts intake and limits nutrient absorption, all while triggering beneficial hormonal changes that help regulate appetite and blood sugar levels.
With SASI-S, patients often lose up to 90% of their excess weight within two years, along with major improvements in metabolic health. As with any bariatric surgery, success depends on making long-term lifestyle changes, including a healthy diet and regular follow-up appointments.
Complications of SASI-S
Although SASI-S is considered safer than many traditional bypass surgeries, there are still potential risks to consider. Like all bariatric procedures, long-term success depends on proper nutrition, follow-up care, and lifestyle changes.
Some of the most common risks include nutritional deficiencies, particularly with iron and fat-soluble vitamins. Lifelong supplementation and regular lab work are typically required. Dumping syndrome may occur if high-sugar foods are eaten too quickly, resulting in symptoms such as nausea, dizziness, and diarrhea.
There is also a small risk of bile reflux due to the connection between the stomach and lower intestine, although this is less common than with other bypass surgeries. As with any surgery, anastomotic leaks and internal hernias are rare but possible complications.
Undergoing SASI-S in Mexico
Dr. Jacqueline Osuna performs SASI-S and other advanced bariatric procedures in Tijuana and Guadalajara, Mexico. Patients traveling for surgery can expect the same high standards of care they’d find in the U.S., often at a fraction of the cost. With experienced surgical teams, private rooms, and bilingual staff to support you every step of the way, Dr. Osuna performs the SASI-S procedure in Mexico Bariatric Center’s accredited facility, Hospital Azar.
Weight loss surgery in the U.S. can cost upwards of $30,000, especially for procedures like the SASI-S, which are considered newer or more specialized. By choosing to have surgery in Mexico, patients can save up to 70% while still receiving top-quality care. The Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) at Mexico Bariatric Center starts at $5,995.
Related Resources:
- Learn more about Dr. Jacqueline Osuna
- Reviews and Testimonials
- See if you qualify for SASI-S in Mexico
Additional Bariatric Surgeries Offered by Dr. Osuna in Mexico