Mini Gastric Bypass surgery in turkey: procedure, Benefits, Risks, Cost
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  • Last updated: Oct 20, 2025

Mini Gastric Bypass surgery in turkey: procedure, Benefits, Risks, Cost

Mini Gastric Bypass Surgery, also known as Anastomosis Gastric Bypass (OAGB),  is a minimally invasive surgical intervention for weight management. This procedure involves the creation of a smaller gastric pouch and redirecting a segment of the small intestine, leading to a Double mechanism of action: reduced food intake and diminished nutrient absorption. Compared to conventional gastric bypass, OAGB is often considered less intricate, potentially carrying a lower risk profile, and is frequently recommended for individuals with elevated Body Mass Index (BMI) who have found other weight loss strategies ineffective.

What is mini gastric bypass surgery?

Mini gastric bypass, also known as one anastomosis gastric bypass, is a streamlined surgery that reduces stomach size and reroutes the small intestine. This procedure promotes significant weight loss by restricting food intake and decreasing calorie absorption, beside beneficial changes in digestive hormones that naturally decrease appetite.

Mini gastric bypass surgery involves reducing stomach space and avoiding the initial two meters of the small intestine, significantly decreasing food absorption. Initially, bowel movements may occur 2-3 times daily, gradually establish to once a day over several years.

 

Mini Gastric Sleeve infographic

 

How Does Sleeve Gastrectomy Is Proceed

Preoperative measures

Medical evaluation included blood tests, heart and lungs assessment, abdominal Ultrasound. 

Psychological and Behavioral assessment to ensure the patient’s understanding of the surgery and ability to deal with post operative diet and lifestyle changes. 

Nutritional modifications include a very low calorie diet that patients should follow before surgery. The goal is to reduce liver size and abdominal fat for easier and safer surgery. Cessation of alcohol and smoking is mandatory for several weeks before surgery to reduce the risks and complications. 

The procedure 

The whole operation is done under general anesthesia so that you will not feel any pain,it takes about 1 to 2 hours laparoscopically, which means less invasive surgery and a short recovery period. 

 The surgeon creates small, multiple cuts in your abdomen to get inside through cameras and special instruments. 

The top of the stomach is cutted to become a small long tube. And the remaining part is not removed but the food Bypasses it into the narrowest one so that minimizes food intake and absorption ensuring effective weight loss. 

The surgeon detaches the small intestine to reconnect it directly with a new, pouch-like stomach. At the end small cuts are closed. 

 Post-operation care and follow up 

Hospital stay is 1 to 3 nights during which an immediate and close monitoring is performed to prevent any risks. 

The follow up programme contains liquid diet only. And gradually upgrade to purred, then soft diet, and eventually healthy and balanced diet for several weeks. 

 The pain is well controlled by medications and medical staff will monitor for any signs of complications. 

Mini Gastric Bypass Surgery Vs Gastric Sleeve and Roux- en-y surgery



Features 

Mini gastric bypass surgery 

Sleeve Gastrectomy (SG) 

Roux-en-Y Gastric Bypass (RYGB)

The procedure 

A long, narrow stomach pouch is created and connected to a loop of the small intestine, bypassing a significant portion.

About 80% of the stomach is permanently removed, creating a smaller, banana-shaped stomach or "sleeve.”

stomach pouch about the size of a (walnut) is created and connected directly to the middle portion of the small intestine, bypassing the rest of the stomach and the upper portion of the small intestine.

Mechanism of Action

Both restrictive (smaller stomach) and malabsorptive (bypassing part of the small intestine).

Primarily restrictive (smaller stomach), but also has some hormonal effects (reduces ghrelin, the hunger hormone).

Both restrictive and malabsorptive

Surgical Complexity

Simpler and faster than RYGB, with only one anastomosis (connection)

Simpler than both MGB and RYGB, with no rerouting of the intestine

More complex, with two anastomoses (stomach-intestine and intestine-intestine) 

Reversibility

Technically reversible, as no part of the stomach or intestine is removed

Not reversible, as a large portion of the stomach is permanently removed

Generally not reversible

Weight loss 

Excellent and often more than RYGB and SG

Significant weight loss, but may be slightly less than bypass surgery

Excellent and solid long-term weight loss

Resolution of health problems related to obesity 

High rate of resolution for conditions like type 2 diabetes, often better than SG and RYGB

Good resolution of but may be less effective for metabolic condition than bypass

High rate of resolution for type 2 diabetes

Risk of Complications

Lower risk of internal hernias and bowel obstruction compared to RYGB. But higher risk of bile reflux

Risk of new-onset or worsening gastero esophegeal reflux

Higher risk of internal hernias and bowel obstruction.

Nutritional Deficiencies

Risk of vitamins and minerals deficiencies on account to malabsorption. Lifelong supplementation is critical

Lower risk of nutritional deficiencies compared to bypass procedures, but still requires supplementation

Significant risk. Lifelong supplementation is essential. 

Dumping Syndrome or rapid gastric emptying 

Possible. Which can be preventive to eating high-sugar foods

Not happening

Common, which can help with dietary modification

Hospital Stay

Generally shorter than RYGB

Has shortest hospital stay of the th

longer than SG and MGB

Mini Gastric Sleeve candidate

Benefits Of Single Anastomotic Gastric Bypass Surgery

Mini Gastric Bypass (MGB), also known as One Anastomosis Gastric Bypass (OAGB), proved that its a highly successful weight-loss surgery that can significantly improve your health and quality of life. If you are thinking about this procedure, its important to understand the many ways it can help you achieve your health goals. Here are the key benefits: 

  1.  Significant and long lasting Weight loss:One of the most convincing  benefits of Mini Gastric Bypass is its ability to help you to reach substantial and long-term weight loss. Many patients reported excellent results, often losing a significant kilograms of their excess weight within the first two years after surgery . This is because the surgery helps you eat less and early fullness in addition to absorbing fewer calories. 
  2. Improvement and prevention of Health Problems related to large weight: Not just losing weight,Mini Gastric Bypass can dramatically improve or even resolve many health conditions often linked to obesity. These include:
  • Type 2 Diabetes: Many patients see a significant improvement. 
  •  High Blood Pressure (Hypertension): The surgery can lead to lower blood pressure, which may allow you to reduce or stop blood pressure medications. 
  • High Cholesterol: Levels of unhealthy cholesterol often decrease, improving your heart health. 
  • Joint Pain: Reduced weight takes pressure off your joints, significantly relieving pain from conditions like osteoarthritis and improving your ability to move and be more active. 
  • Liver Disease: such as non-alcoholic fatty liver disease (NAFLD) can improve. 
  • Heart Disease and Stroke Risk: By limiting many risk factors, the surgery can lower your overall risk of heart disease and stroke.

3.straightforward Procedure With Fewer Complications: Compared to the traditional Roux-en-Y Gastric Bypass, the Mini Gastric Bypass is often an easier and faster surgery. This is because it involves only one connection (anastomosis) between your stomach and small intestine, rather than two. This can lead to:

  • Lower Overall Risks: Fewer connections mean fewer places for potential issues to arise.
  • Shorter Hospital Stays: Patients often spend less time in the hospital. 
  • Reduced Risk of Leakage and Bowel Obstruction: The single connection also means less chance of leaks or adhesions  in your intestines compared to procedures with multiple connections.  

4.Improved life And General Health: profound weight loss has a significant positive impact on your life. Patients reveal that their mobility becomes faster and easier than before. They feel more energetic and losing weight boosts their confidence and overall well-being.

Dive into: gastric sleeve 10 years later

Mini gastric bypass surgery pros and cons

Pros: Shorter and simpler surgery with a faster recovery and often leads to greater weight loss than a gastric sleeve. It has a lower risk of complications compared to a full Roux-en-Y bypass.


Cons: risk of developing bile reflux and higher chance of vitamin and nutrient deficiencies.It also requires a permanent commitment to significant lifestyle changes to ensure lasting success.

Potential Complications of Mini Gastric Bypass Surgery

 We want to ensure you are completely  informed about every aspect of Mini Gastric Bypass (MGB) surgery, including possible complications. Its important to know that while all surgeries carry some risks, the medical staff goal is to minimize these and provide you with the best possible care. You will be monitored closely and any emerging risk will be handled immediately. 

General Surgical Risk: Applicable to any surgery

  • Bleeding: Theres a small chance of excessive bleeding during or after surgery. But the medical team is skilled to manage it. 
  • Infections: so strict sterile environments should be maintained to prevent infections. And prophylitis antibioticus is given prior to surgery. 
  • Anesthesia  Adverse Reactions: Before your surgery, the anesthesiologist will review your medical history to minimize any risks related to anesthesia.
  • Blood Clots: and that is why blood thinner like aspirin is provided weeks before the operation. 
  • Leaks in Your Digestive System: This is a rare but serious complication. The medical staff perform rigorous checks during surgery to ensure all connections are secure, and  monitor you closely afterward for any signs of an issue.
  • Lung and respiratory problems: The breathing exercises minimize them to keep lungs healthy after surgery.
  • Nutritional Deficiencies: Because MGB changes how the Digestive tract absorbs nutrients, theres a higher chance of developing deficiencies in vitamins and minerals over time. So lifelong vitamin and mineral supplementation (including a multivitamin with iron, calcium, and vitamin B-12) is absolutely crucial.
  • A small portion of patients may develop bile reflux. In which the bile which is normally involved in digestion can flow backward to the stomach and esophagus. So regular follow up will detect early issues and manage them. 
  • Dumping Syndrome: here some foods especially that contain high sugar and fats moves too quickly from stomach to small intestine. This can cause symptoms like nausea, diarrhea, sweating, and lightheadedness. Dietitians will educate you on how to avoid dumping syndrome through careful food choices and eating habits. 
  • Ulcers: mini gastric bypass surgeofas low ulcer incidencecececececece but still ulcers may develop after surgery. So lifestyle adjustments and medications should be prescribed to minimize this risk.
  • Bowel Obstruction or Hernias: Although one connection in MGB Lower risks of these issues compared to other procedures, bowel obstructions or hernias can still occur.

 

Mini Gastric Sleeve recovery

Mini Gastric Bypass Surgery Cost In Turkey

Mini Gastric sleeve costs in Turkey range between $4,000 and $8,000 USD. Why is Turkey the first destination for these types of surgery? This is attributable to its reputation for providing high-quality, expert care at more competitive prices than those found in other nations.

The cost for Mini gastric sleeve mexico

 typically ranges from $4,000 to $7,000 USD, with specialized mini gastric bypass packages lunch at approximately $5,699 USD.

The Table below show comparison between turkey and europe:




Country 

Cost

Turkey 

4,000_6,500 USD

Spain

8,000_15,000 USD

Germany

10,000_20,000 USD

France 

12,000_25,000 USD

United kingdom 

8,000_ 15,000



Factors Upon Which The Cost Depend:

  • Clinic Reputation and Location: Well-known clinics in major places. So the price of mini gastric sleeves in Istanbul is different from other cities. 
  • Surgeons Experience and Qualifications: Highly experienced and internationally recognized surgeons might charge more.
  • Inclusions in the Package: Many clinics offer all-inclusive packages that cover:
    • Pre-operative consultations and tests.
    • The surgical procedure itself.
    • Hospital stay.
    • Post-operative care and follow-up appointments.
    • Medications
    • Accommodation and airport transfers.
  • Anesthesia and Equipment Used: Advanced techniques or specialized equipment can affect the price. 

Mini Gastric Sleeve Before And After 

BEFORE_AFTER_AREA

External Sources Webmd Healthdirect  

FAQ's

The amount of weight that you can lose with a mini sleeve surgery depends on a variety of factors. Some may lose 2 pounds (1 kilo) each week after the procedure. Others may lose less than this amount, but most patients reach their ideal healthy weight eventually.

The difference between a gastric sleeve and a mini gastric sleeve is in the degree of stomach resizing. The standard gastric sleeve aims at cutting 80% of the stomach, while the mini gastric sleeve aims at cutting only 40%.

You don’t have to weigh a certain weight to get a mini sleeve. However, surgeons prefer to provide the procedure to those with a BMI less than 35. The decision to undergo any other type of bariatric surgery doesn’t depend on a specific weight requirement.

Surgeons remove around 40% of the stomach with a mini sleeve. Some surgeons may opt to remove less or more than this percentage, depending on the situation.

Anyone can get the mini sleeve surgery, but surgeons often recommend it to people who BMI less than 35 and those who can’t undergo more invasive bariatric procedures.

Mini sleeve surgery work by making the stomach smaller, just like the standard gastric sleeve, but the resizing of the stomach will be less than the standard gastric sleeve.

Medical reports show that weight loss and quality life Improvement after MGB is higher than other weight loss procedures.

The stomach size and shape after surgery becomes like those of bananas.

Studies confirmed that mini gastric bypass is secure and efficient surgery, however, it still carries risks like other procedures.

The duration of mini gastric bypass surgery is shorter than traditional gastric bypass, it takes about 45 to 90 minutes.

Around 60_70% from total body weight loss will occur in the first 2 years after surgery.

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