Single Anastomosis Stomach-Ileal Bypass in Mexico

The Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASi-S) is a recent advance in metabolic and bariatric surgery that combines two well-established operations: sleeve gastrectomy (VSG) and mini-gastric bypass (MGB). The SASI-S surgical procedure can also be considered a modified version of SADI-S with similar weight reduction and resolution of comorbidities, but a lower risk of complications and malnutrition.

The SASI-S procedure minimizes the risks commonly seen with traditional malabsorptive surgeries. It is specifically designed for both obese and super-obese patients.

Mexico Bariatric Center’s experienced bariatric surgeons begin the procedure by removing about 70% of the stomach to create a sleeve-shaped pouch. The lower portion of the stomach is then connected directly to the ileum, effectively bypassing a section of the small intestine.

This comprehensive guide provides key information for anyone exploring SASi surgery in Mexico.

SADI-S Single-Anastamosis Duodenal Switch

Surgery Duration
2 – 2.5 Hours

Hotel Stay
1 Night Pre-Op

Hospital Stay
2 Nights

Back to Work
3 -4 Weeks

How SASi-S Works

The main mechanism of action in bariatric surgeries like SASI-S extends beyond simple restriction or malabsorption. This procedure triggers hormonal changes, such as increases in GLP-1 and GIP, to help reduce hunger and improve blood sugar control. Furthermore, elevated bile acid levels and shifts in the gut microbiome contribute to the metabolic improvements seen after SASI-S.

LOVE-SASI-S

Before and After

Restrictive Component

Around 70% of the stomach is removed to decrease its size and limit the amount of food that can be consumed.

Malabsorptive Component

A portion of the small intestine is separated and connected directly to the stomach, allowing food to bypass part of the intestine. This reduces the amount of nutrients being absorbed.

Shorter Digestive Loop

Food travels from the stomach to the distal bowel in a shorter path, limiting nutrient absorption before reaching the common channel.

Longer Biliopancreatic Loop

Bile from the liver is redirected to the common channel, allowing digestive juices to mix with food.

SASi-S Weight Loss Timeline

The SASI Bypass presents a highly effective surgical solution for individuals dealing with obesity and its related health conditions. This procedure not only helps patients lose a significant amount of excess weight but also improves issues like type 2 diabetes, hypertension, and sleep apnea. Most patients see near-complete resolution of their excess weight within the first two years.

Long-term follow-up data demonstrate the efficacy of SASI-S:​

  • 1 Year: 87% excess weight loss
  • 2 Years: 91% excess weight loss
  • 3 Years: 81% excess weight loss

These numbers represent average outcomes. Achieving 100% excess weight loss is possible, but individual results may vary.

Potential Benefits of Single Anastomosis Stomach-Ileal Bypass in Mexico SASI-S

SASI-S Potential Benefits

SASI yields significant and sustained weight loss with improvement or resolution of comorbidities like type 2 diabetes, high blood pressure, and sleep apnea. Compared to other bypass procedures, RNY gastric bypass, mini gastric bypass, duodenal switch (BPD/DS), and single anastomosis duodenal switch (SADI-S), there is:

  • Simplified Surgery – There is a stomach size reduction and only one anastomosis to make. So there is less cutting and stapling. This translates to shorter operative time.

  • Minimized Risk – There is less risk of complications since no dissection or stapling of the duodenum is involved.

  • Relieved Pressure – Connecting the stomach to the distal small bowel helps relieve pressure in the stomach and reduces strain on the sleeve staples. There is also less risk of leaking and acid reflux.

  • Less Malnutrition – There is less chance of nutrient deficiencies, particularly iron. With SASI-S, part of the food nutrition still gets absorbed in the duodenum.

  • Revisable – The SASI-S procedure can be easily revised if the surgery doesn’t give the expected results. It can be converted to sleeve gastrectomy, mini gastric bypass, RNY bypass, or SADI-S.

Get Sassy with the SASI-S!

Get Sassy with the SASI-S!

Get Sassy with SASI-S -Mexico Bariatric Center

SASI-S Risks and Considerations

While SASI-S carries certain risks, they are generally lower compared to other complex bariatric procedures, making it a safer option for many patients.

  • Nutritional Deficiencies – Lifelong bariatric-specific vitamin and mineral supplementation is typically required.

  • Dumping Syndrome – The bypass component of SASI can cause food to move too fast from the stomach into the small intestine, causing nausea, vomiting, and diarrhea.

  • Anastomotic Leaks – The surgical joint between the stomach and intestine has a slight chance of leaking.

  • Internal Hernias – Like any other operation, there is a slight chance of developing internal hernias.

  • Bile Reflux – SASI reduces the risks associated with gastric bypass, particularly bile reflux.

Rachel G Before and After Duodenal Switch in Tijuana_Mexico Bariatric Center

What Does the SASi-S Package Include?

The cost of Single Anastomosis Stomach-Ileal Bypass can easily surpass $30,000 in the U.S. and Canada, especially without insurance. By choosing Mexico for your weight loss surgery, you can save as much as 70%, while still receiving care that meets or exceeds U.S. standards. Our all-inclusive package starts at $8,495 $6,495* and takes care of every detail from your arrival in San Diego to your departure, including ground transportation and hotel accommodations.

  • Private Ground Transportation
  • Accredited Hospital with ICU
  • Board Certified Surgeons

  • Hospital Stay & Fees (2 nights)

  • Nutrition Program

  • State-of-the-Art Facilities

  • Online Support Group

  • U.S. Surgeon Liaison

  • No Hidden Fees
Day 1. Fly to San Diego Travel to Mexico - Mexico Bariatric Center

Day 1. Fly to San Diego

Our Private Drivers will be waiting. ~20 minute drive across the border. Get pre-op testing and stay at the Hotel.

Day 2. Surgery Day - Travel to Mexico - Mexico Bariatric Center

Day 2. Surgery Day!

You will be picked up from the Hotel early in the morning for your surgery. Stay the Night in Hospital.

Travel to Mexico - Day 3. Hospital Azar - Mexico Bariatric Center

Day 3. Hospital

Recover in Hospital Azar. Post-op testing and 24/7 Care. Make sure you walk around and drink a lot of water!

Day 4. Departure Return Home - Travel to Mexico - Mexico Bariatric Center

Day 4. Departure

Released from the hospital and drop-off at the airport. Plan departure flight after 2:00 pm Pacific Time.

Do I Qualify for SASi-S?

The relatively new SASI-S procedure is designed to take advantage of two effective and common procedures, the gastric sleeve and mini-gastric bypass. The long-term effects are still being studied. Pre- and post-operative care, including dietary changes and lifestyle modifications, is essential for long-term success.

Our general requirements include:

  • A body mass index (BMI) of 40+

  • A BMI of 35 with obesity-related co-morbidities (type II diabetes, hypertension, high blood pressure)

Use our BMI calculator to instantly determine if you’re a candidate for SASI-S in Mexico.

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Duodenal Switch Surgery Before and After Photos

Tiara H Before Duodenal Switch
Tiara H After Duodenal Switch
Tiara
Taylor M Before DS
Taylor M After DS
Taylor
barbara before Duodenal Switch
barbara after Duodenal Switch
Barbara
Jamie before Duodenal Switch
Jamie after Duodenal Switch
Jamie
AJ before Duodenal Switch
AJ after Duodenal Switch
AJ
Meagan before Duodenal Switch
Meagan after Duodenal Switch
Meagan
Skyler before Duodenal Switch
Skyler after Duodenal Switch
Skyler
Ross before Duodenal Switch
Ross after Duodenal Switch
Ross
kate before
kate after
Kate
Christian DS before
Christian DS after
Christian
Kim DS before
Kim DS after
Kim
Roshni DS before
Roshni DS after
Roshni
Justin DS before
Justin DS after
Justin
Tiffany DS before
Tiffany DS after
Tiffany
Christopher Before
Christopher After
Christopher
David Duodenal Switch Before Picture
David Duodenal Switch After Picture
David
Michelle Duodenal Switch Before Picture
Michelle After
Michelle
Sapp - Before Gastric Sleeve Surgery
Sapp - After Gastric Sleeve Surgery
Sapp

SASI-S Comparisons 

SASi-SBalloonSleeveBypassTransit Bipartition
Restriction✅✅✅✅✅
Malabsorption✅⛔⛔✅✅
Anastamosis1⛔⛔22
Nutritional DeficiencyMedium HighLowLowMediumLow
Excess Weight Loss91%35%72%75%85%
Diabetes Remission90%⛔84%86%75%
ComplicationsMedium HighLowLowMediumMedium
Recovery3 to 6 weeks1 to 2 days1 to 3 weeks2 to 4 weeks3 to 6 weeks
Operation ComplexityDifficultSimpleSimpleModerateDifficult
Surgery Duration3 hrs30 min.1 hr.2 hrs.2 hrs.

Fewer incisions, lower risk, and better nutrient absorption.
Advanced Single Anastomosis Stomach-Ileal Bypass (SASI-S) in Mexico

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SASI vs SADI

SASI-S is a simpler version of SADI-S. The main difference is that SADI-S connects the duodenum to the ileum, whereas SASI-S connects the sleeved stomach to the ileum. SADI involves stapling the duodenum, but in SASI, the duodenum stays intact, posing a lower risk.

The less complex connection in SASI-S is associated with a potentially reduced risk of operational and nutritional complications, such as leak or acid reflux.

SASI-S Single Anastomosis Stomach-Ileal Bypass with Sleeve
SADI-S Single-Anastamosis Duodenal Switch

How does SASI compare to Gastric Sleeve and Mini Gastric Bypass?

VSG Gastric Sleeve in Mexico

SASI vs. Gastric Sleeve

SASI-S (Single Anastomosis Sleeve Ileal) is a hybrid procedure that combines elements of the gastric sleeve and mini gastric bypass. The gastric sleeve involves removing a portion of the stomach to create a smaller, sleeve-shaped stomach without altering the intestines.

Advantages

Disadvantages

  • New procedure, less long-term data

  • Strict long-term dietary restrictions

  • Lifetime vitamin supplements

  • Longer recovery time

Mini Gastric Bypass in Mexico

SASI vs. Mini Gastric Bypass

SASI can be seen as a refined version of the mini gastric bypass. Both procedures create one connection in the digestive system. In the Mini Bypass, the connection is made in the upper part of the small intestine, while in the SASI procedure, the connection is made further down in the lower part of the small intestine.

Advantages

Disadvantages

  • Higher complications
  • Newer procedure than bypass

  • Longer surgery time

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