Lasting Weight Loss with a Gastric Sleeve

Some elastic expansion can occur in the first year. However, if a habit of eating large amounts is maintained after surgery, the stomach can stretch over the long term. Small, frequent meals, good food quality, and healthy habits keep the volume stable.

For the first 6 weeks, a staged liquid → puree → soft → solid diet protocol is followed. Long term: carbohydrate-heavy foods, sugary drinks, high-fat fast food, and carbonated beverages are restricted. A protein-first diet is essential.

The sleeve reduces stomach volume but doesn't change the intestinal path. The bypass provides both volume restriction and malabsorption — its hormonal effect is stronger in diabetic patients. The bypass is more complex and carries a higher risk of vitamin deficiency.

In some patients, a conversion to bypass may be an option if the sleeve doesn't produce enough weight loss or if reflux develops. This occurs in about 5–10% of cases; the decision is made jointly by the surgeon and patient.

A gastric sleeve that costs €12,000–18,000 in Germany or Switzerland is offered in Istanbul in a much more affordable package, including the hospital. Even with flights and hotel included, the total savings are significant.

A laparoscopic gastric sleeve is usually completed in 60–90 minutes. Including anesthesia preparation and recovery time, the total time in the operating room is about 2–2.5 hours.

Yes. A psychological assessment is recommended before deciding on surgery; behavioral therapy support is planned for patients with binge eating or an eating disorder. Monthly online nutrition and motivation sessions are offered after surgery.