Advanced Bariatric Surgery for Sustainable Weight Loss, Improved Health & Long-Term Lifestyle Transformation
Gastric Sleeve Surgery, also known as Sleeve Gastrectomy, is one of the most effective and widely performed weight loss procedures for patients struggling with obesity and related health conditions. At Avicenna Hospital in Istanbul, this procedure is performed using advanced laparoscopic techniques, focusing on safety, precision, and long-term success. Patients choose gastric sleeve surgery not only for significant weight reduction but also for improvement in metabolic health, mobility, and overall quality of life. With a structured treatment approach and ongoing medical support, this procedure helps patients achieve lasting transformation while maintaining a natural digestive process.
🩺 What Is Gastric Sleeve Surgery?
Gastric Sleeve Surgery is a minimally invasive bariatric procedure that reduces the size of the stomach by approximately 70–80%, creating a narrow, tube-like “sleeve.” This significantly limits food intake and helps patients feel full much faster, supporting controlled eating habits and consistent weight loss. During the procedure, a large portion of the stomach is removed laparoscopically through small incisions.

The remaining stomach is reshaped into a slim structure while preserving its natural function within the digestive system. Unlike some other bariatric procedures, gastric sleeve surgery does not involve rerouting the intestines, making it a simpler and widely preferred option.
In addition to restricting food intake, the surgery also impacts hunger-regulating hormones, particularly ghrelin, leading to reduced appetite and fewer cravings. This dual effect makes gastric sleeve surgery highly effective for patients who have struggled with traditional weight loss methods.
Patients often experience significant improvements in obesity-related conditions such as type 2 diabetes, high blood pressure, sleep apnea, and joint pain. With proper follow-up and lifestyle adjustments, the results are long-lasting and contribute to overall health improvement and increased life expectancy.
🩺 Types of Gastric Sleeve Procedures
• Sleeve Gastrectomy (Standard Laparoscopic) – The most common approach performed using minimally invasive techniques with small incisions and faster recovery.
• Single Incision Gastric Sleeve – Performed through a single entry point for reduced scarring and enhanced cosmetic outcomes.
• Robotic-Assisted Gastric Sleeve – Utilizes advanced robotic systems for increased precision and control during surgery.
• Revisional Gastric Sleeve – Performed for patients who previously underwent bariatric surgery and require further correction or optimization.
🩺 Who Is a Good Candidate?
Gastric sleeve surgery is recommended for individuals with obesity who have not achieved sustainable results through diet and exercise alone. It is also suitable for patients experiencing health complications related to excess weight.
✔️ Individuals with a Body Mass Index (BMI) of 30 or higher
✔️ Patients with obesity-related conditions such as diabetes or hypertension
✔️ Individuals struggling with long-term weight management
✔️ Patients seeking a permanent weight loss solution
✔️ Adults in stable overall health condition
✔️ Individuals motivated to adopt long-term lifestyle changes
✔️ Patients who understand the importance of dietary compliance
✔️ Non-smokers or those willing to stop smoking before surgery
✔️ Individuals without severe uncontrolled medical conditions
✔️ Patients with realistic expectations regarding results

🩺 Consultation & Preparation
A thorough consultation and preparation process ensures that each patient is medically and psychologically ready for gastric sleeve surgery, reducing risks and improving outcomes.

✔️ Comprehensive medical evaluation including BMI assessment
✔️ Detailed review of medical history and current medications
✔️ Blood tests and diagnostic imaging if required
✔️ Nutritional assessment and dietary counseling
✔️ Psychological evaluation to assess readiness for lifestyle change
✔️ Pre-operative weight management recommendations
✔️ Instructions to stop smoking and alcohol consumption
✔️ Guidance on medications to avoid before surgery
✔️ Pre-surgery fasting and hydration instructions
✔️ Explanation of surgical procedure and recovery expectations
✔️ Discussion of long-term dietary plan and follow-up schedule
✔️ Final confirmation of personalized treatment plan
🩺 Recovery & Aftercare
Recovery after gastric sleeve surgery is structured and carefully monitored to support healing, safe weight loss, and long-term success.
✔️ Hospital stay typically lasting 2 to 3 days under medical supervision
✔️ Mild discomfort, swelling, or fatigue during early recovery
✔️ Gradual transition from liquid to solid diet over several weeks
✔️ Strict adherence to prescribed nutritional guidelines
✔️ Early mobilization to promote circulation and prevent complications
✔️ Avoiding heavy physical activity during initial healing phase
✔️ Regular follow-up appointments with medical team
✔️ Vitamin and mineral supplementation as recommended
✔️ Continuous hydration to support metabolism and recovery
✔️ Monitoring weight loss progress and overall health

🌍 Why Choose Avicenna Hospital for Gastric Sleeve Surgery?

Avicenna Hospital in Istanbul is recognized for delivering comprehensive bariatric care with a focus on safety, precision, and patient-centered treatment.
✔️ Experienced bariatric surgeons specializing in weight loss procedures
✔️ Advanced laparoscopic and minimally invasive surgical techniques
✔️ Modern hospital infrastructure with fully equipped operating rooms
✔️ Multidisciplinary team including nutritionists and specialists
✔️ High standards of hygiene, sterilization, and patient safety
✔️ Personalized treatment planning tailored to each patient
✔️ Comprehensive pre-operative and post-operative care
✔️ International patient services with dedicated coordinators
✔️ Structured follow-up programs for long-term success
✔️ Focus on sustainable weight loss and improved health outcomes
💬 Patient Reviews
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“I had gastric sleeve surgery at Avicenna Hospital and the experience was incredibly smooth. The team guided me through every step, and I’ve already lost a significant amount of weight. I feel healthier and more confident.” – Sarah K., UK
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“This surgery completely changed my life. My diabetes is now under control and I feel more energetic every day. The care I received in Istanbul was professional and reassuring.” – Ahmed R., UAE
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“I was nervous before the procedure, but the doctors explained everything clearly. The recovery was easier than I expected, and the results have been amazing so far.” – Maria L., Spain
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“After years of struggling with weight, this was the best decision I’ve made. The hospital team was attentive, and the support after surgery made a big difference.” – John T., USA
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“I have lost over 30 kg since my surgery. My mobility has improved and I feel much lighter both physically and mentally. The experience exceeded my expectations.” – Elena P., Italy
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“The care at Avicenna Hospital was outstanding. Everything was well organized, and I always felt safe. My appetite has reduced significantly, making weight loss much easier.” – David M., Canada
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“From consultation to recovery, everything was handled professionally. I feel like I have a new start in life. My health markers have improved greatly.” – Fatima H., Saudi Arabia
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“The results are real and sustainable. I no longer struggle with constant hunger, and I feel in control of my lifestyle. I highly recommend this procedure.” – Lucas S., Brazil
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“The surgery helped me regain my confidence. I feel more active and positive. The hospital staff was supportive throughout the entire process.” – Anna W., Germany
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“I appreciated how detailed the preparation and follow-up were. It gave me confidence in the process. My weight loss journey is finally on the right track.” – Claire D., France






























