ISTANBUL · GASTRIC BYPASS
Gastric Bypass Surgery in Istanbul
The most effective bariatric procedure for maximum weight loss and type 2 diabetes resolution — performed by specialist bariatric surgeon Op. Dr. Aslan in Istanbul.
- ✓60-80% excess weight loss
- ✓Most effective for type 2 diabetes
- ✓Laparoscopic — minimal scarring
- ✓3-4 day hospital stay included
- ✓All-inclusive — hotel, transfer & aftercare
80%
Excess weight loss
15+
Years experience
3-4
Days hospital stay
48
Countries served
THE PROCEDURE
What is Gastric Bypass Surgery?
Gastric bypass (Roux-en-Y gastric bypass) is a two-part procedure that both reduces the size of the stomach and reroutes the small intestine. A small stomach pouch is created from the upper part of the stomach, and the small intestine is divided and connected directly to this new pouch — bypassing the rest of the stomach and the upper small intestine.
This dual mechanism results in significantly less food consumption and reduced calorie absorption — delivering the most powerful and long-lasting weight loss of any bariatric procedure. It is also the most effective surgical treatment for type 2 diabetes resolution, with up to 80% of patients experiencing significant improvement or complete resolution.
60-80% excess weight loss
The most powerful weight loss of any bariatric procedure — with results maintained long-term.
Type 2 diabetes resolution
Up to 80% of patients experience significant improvement or complete resolution of type 2 diabetes.
Dual mechanism
Reduces both stomach size and calorie absorption — delivering maximum metabolic impact.
Laparoscopic surgery
Performed through small incisions — minimal scarring, faster recovery and shorter hospital stay.
Improves health conditions
Resolution of hypertension, sleep apnoea, joint pain and fatty liver disease in most patients.
Long-lasting results
Gastric bypass delivers the most durable long-term weight loss of any bariatric procedure.
COMPARISON
Gastric Bypass vs Gastric Sleeve
Both procedures deliver significant weight loss — but gastric bypass is more powerful and more effective for diabetes. Our specialist will recommend the right option during your free consultation.
Gastric Bypass
- ✓BMI 40+ recommended
- ✓60-80% excess weight loss
- ✓Best for type 2 diabetes
- ✓3-4 day hospital stay
- ✓Most powerful long-term results
- ✓Dual mechanism — restriction + malabsorption
Gastric Sleeve
- ✓BMI 35+ recommended
- ✓50-70% excess weight loss
- ✓Good for diabetes improvement
- ✓2-3 day hospital stay
- ✓Simpler procedure
- ✓Restriction only — no malabsorption
AM I SUITABLE?
Who is a Good Candidate?
Gastric bypass is generally recommended for patients with higher BMI or significant obesity-related health conditions. Our specialist will assess your suitability carefully during your free consultation.
✓ You may be suitable if:
- ✓ BMI of 40 or above
- ✓ BMI 35+ with type 2 diabetes
- ✓ BMI 35+ with serious health conditions
- ✓ Previous bariatric surgery unsuccessful
- ✓ Committed to long-term lifestyle changes
- ✓ Age 18-65
✗ May not be suitable if:
- ✗ BMI below 35
- ✗ Severe heart or lung conditions
- ✗ Inflammatory bowel disease
- ✗ Pregnancy
- ✗ Uncontrolled psychiatric conditions
- ✗ Alcohol or drug dependency
YOUR SURGEON
Meet Op. Dr. Aslan
All gastric bypass procedures at Estelux are performed exclusively by Op. Dr. Aslan — specialist bariatric surgeon and one of Istanbul's most experienced weight loss specialists.
Op. Dr. Aslan
General Surgery & Bariatric Specialist · Istanbul
2,000+
Sleeve gastrectomies
4,000+
Gastric botox cases
15+
Years experience
YOUR JOURNEY
How It Works
1
Free consultation
Share your health history and goals via WhatsApp. Get a personalised plan within 24 hours.
2
Travel to Istanbul
We arrange your airport transfer and hotel. All pre-operative tests completed on arrival.
3
Your procedure
Laparoscopic gastric bypass by Op. Dr. Aslan. 3-4 day hospital stay included in your package.
4
Return & recover
Full dietary plan and remote follow-up support. Your long-term success is our priority.
FAQ
Frequently Asked Questions
Is gastric bypass better than gastric sleeve?
Gastric bypass delivers greater weight loss and is more effective for type 2 diabetes resolution. However, it is a more complex procedure with a slightly longer recovery. Our specialist will recommend the best option for your individual case during your free consultation.
How much weight will I lose?
Most patients lose 60-80% of their excess body weight within 12-18 months of surgery. Results depend on starting weight, dietary adherence and lifestyle changes after surgery.
How long do I need to stay in Istanbul?
Most gastric bypass patients stay 7-10 days in Istanbul. This includes 3-4 days in hospital followed by recovery days before flying home.
Is gastric bypass reversible?
Gastric bypass is considered a permanent procedure. This is why thorough pre-operative assessment and patient selection is essential — which our specialist carries out during your free consultation.
What is included in the all-inclusive package?
Our package covers pre-operative tests, the procedure, 3-4 night hospital stay, hotel accommodation, airport transfers, patient coordination, post-operative dietary plan and remote follow-up support.
How much does gastric bypass cost in Istanbul?
Contact us for a personalised all-inclusive quote — completely free with no obligation.
OTHER PROCEDURES
Explore Our Other Bariatric Options
Every surgical procedure may show different results from person to person. It is recommended that you consult your doctor in detail before the procedure. Individual weight loss results vary depending on health status, dietary habits and lifestyle changes after surgery.