SASI-S Surgery in Mexico
Single Anastomosis Stomach-Ileal Bypass (SASI-S) is a modern bariatric procedure that combines the benefits of a gastric sleeve and an intestinal bypass to the lower small bowel (ileum). It helps you eat less by physically limiting stomach capacity and induces early satiety, while reducing calories and fat absorption.
This procedure yields significant weight loss and high remission rates for diabetes, often with fewer nutrient deficiencies than traditional bypasses. It is performed laparoscopically and is often reversible. Mexico Bariatric Center at Hospital Azar® is the pioneer in SASI-S Surgery in Mexico.
How It Works
SASI-S is a hybrid weight-loss surgery designed for obese and super-obese patients.
The procedure involves two main steps:
- Sleeve Gastrectomy: Approximately 70% of the stomach is removed to create a smaller, sleeve-shaped pouch (restrictive component).
- Intestinal Bypass: The lower part of the stomach is connected directly to the ileum (small intestine), allowing some food to bypass a portion of the digestive tract (malabsorptive component).
Get SASSY with SASI-S!
Up to 91% Excess Weight Loss with a Single-Anastomosis Bypass in Mexico.
Key Benefits
SASI-S in Tijuana, Mexico delivers exceptional clinical outcomes, with patients achieving an average of 87% excess weight loss at one year and 91% at two years, alongside a remarkable 90% remission rate for Type 2 Diabetes and other metabolic comorbidities. Anatomically, because a portion of ingested food continues to travel through the natural duodenal pathway, patients face a significantly lower risk of malnutrition and enjoy better absorption of essential nutrients like iron compared to traditional bypasses.
Furthermore, connecting the sleeve directly to the small bowel relieves pressure along the staple line, substantially reducing the likelihood of leaks and chronic acid reflux, while still remaining a flexible option that can be safely reversed or revised if necessary.
Potential Surgery Risks
- Requires lifelong bariatric vitamins.
- Newer procedure
Potential Post-Op Side Effects
- Dumping syndrome
- Nausea/Diarrhea
- Anastomotic leaks
- Internal hernias
How We Safeguard You
- 2–3 Post-op leak tests
- Medical Tourism Insurance for complications
Why Choose Mexico for SASI-S?
Expert Surgeons
Our bariatric surgeons are leading experts in SASI-S procedures, ensuring safety and expertise.
Affordable Care
Save up to 70% compared to U.S. prices without compromising on quality or safety.
Luxury Hospital
Hospital Azar® is equipped with the latest and greatest technology for optimal care.
No Waitlists
We respect deadlines to keep your life on track. Schedule in as little as 7 days!
Travel Itinerary For SASI-S Package
Day 1 - Arrival
Arrive one day prior to surgery by 12pm PST. Transport included. Pre-op tests and stay at Hotel.
Day 2 - Surgery
Transportation to MBC Hospital. Stay for 2 nights in our Hospital w/ ICU under 24/7 care.
Day 3/4 - Recover
Recover in Hospital. 2-3 Leak Tests. Spend day/night at Hospital Azar under 24/7 care.
Day 5 - Departure
The driver takes you across the border to San Diego airport. Plan departure flight after 2:00 pm.
What Does the SASi-S Package Include?
The price of SASI-S in the U.S. and Canada without insurance can easily set you back $30,000. Fortunately, we offer U.S. quality weight loss surgery in Mexico at a fraction of the cost. We eliminate all of the planning and preparation by taking care of everything from the moment you arrive in San Diego to the moment you depart. Ground transportation, hotel stay, and everything in between are covered in our all-inclusive package.
- Private Ground Transportation
- Accredited Hospital with ICU
- Board-Certified Surgeons
- 24/7 Hospital Staff
- 4.5 Star Hotel (Optional)
- Complication Coverage
- Hospital Stay & Fees (2 nights)
- Nutrition Program
- State-of-the-Art Facilities
- Online Support Group
- U.S. Surgeon Liaison
- No Hidden Fees
SASI-S Surgery
All-Inclusive Package-
1 Night Pre-Op Hotel Stay
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Hospital Stay (2 Nights)
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Back to Work: 2 - 6 Weeks
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Surgery Duration: 2.5 Hours
Frequently Asked Questions
Superior Weight Loss & Diabetes Remission: Offers a high rate of excess weight loss (91%) and a high rate of Type 2 diabetes remission (90%).
Lower Malnutrition Risk: Because it preserves a dual digestive pathway (food travels both through the new bypass and the natural route), it allows better nutrient absorption than traditional bypasses while maintaining strong metabolic benefits.
Reversibility & Adaptability: The bypass connection can be altered or reversed back to a standard sleeve if necessary.
Simpler Bypass Structure: Features only 1 surgical join (anastomosis) compared to 2 in a traditional gastric bypass, reducing internal hernia risks.
BMI Criteria: Generally recommended for individuals with a Body Mass Index (BMI) of 40 or higher, or a BMI of 30–35+ alongside obesity-related conditions.
Health Conditions: Ideally suited for individuals struggling with Type 2 diabetes, high blood pressure, sleep apnea, or metabolic syndrome.
General Health: Candidates must be cleared for general anesthesia and committed to long-term dietary changes and follow-up care.
Excess Weight Loss: SASI-S achieves 91% weight loss compared to 72% for the Gastric Sleeve.
Diabetes Remission: SASI-S yields a 90% remission rate versus 84% with a Gastric Sleeve.
Surgical Steps (Anastomosis): Gastric Sleeve requires 0 intestinal joins (it only resizes the stomach into a tube), whereas SASI-S adds 1 join to bypass part of the small intestine.
Surgery Duration: SASI-S takes approximately ~3 hours, while a Gastric Sleeve takes about ~1 hour.
Excess Weight Loss: SASI-S leads with 91% weight loss compared to 75% for Gastric Bypass.
Diabetes Remission: SASI-S reaches a 90% remission rate versus 86% with Gastric Bypass.
Surgical Joins (Anastomosis): SASI-S requires 1 join, while Gastric Bypass requires 2 joins.
Surgery Duration: SASI-S takes around ~3 hours, whereas Gastric Bypass typically takes ~2 hours.
Patients lose an average of 91% of their excess body weight.
Complete the Consent Form: The link will be sent in your booking confirmation email.
Upload a Copy of your Passport/Identification: To ensure crossing the border is smooth, we verify your identification which you can attach to the consent form.
Send Us Your Flight Itinerary: Make sure to have your arrival time before 12:00 PM (noon) and departure time after 2:00 PM.
Proof of Final Payment or pay online (21 days prior)
Patients Packing List – Our patients collectively came together to make this list to prepare for Weight Loss Surgery in Tijuana, Mexico. Don’t forget your required travel documents including your passport.
Whether is gastric sleeve surgery, gastric bypass surgery, mini bypass, or gastric balloon – here is the packing list to bring to Mexico for bariatric surgery! Don’t pack too much, remember you are not traveling for a fashion show. You are traveling for weight loss surgery.
- Just a small suitcase and a carry-on!
- Don’t waste luggage space with your own pillow, you probably will never use it. Although bringing a pillowcase is helpful.
- Bring a neck pillow.
- Bring some spending cash, preferably smaller bills. Although tipping is up to you, having extra money for your travels may be worthwhile.
- Bring slippers that easily slip on when you get out of the hospital bed.
- Bring extra washcloths.
- Loose, stretchy clothes. You don’t just magically become skinny immediately after surgery. Easily accessible clothing is a must.
- Pack headphones with your own music for extra comfort.
- Bring extra underwear.
- Bring a Gas-X strip with you. If not MBC has a limited number of Gas-X strips for sale – ask the staff!
- Bring a warm jacket or a sweater for the plane ride, just in case you’re cold in the hospital.
- Sleep masks and earplugs.
- Heating pad.