Frequently Asked Questions About Sleeve Gastrectomy Surgery

Sleeve gastrectomy is one of the most commonly performed procedures in bariatric surgery. Approximately 75–80% of the stomach is surgically removed, leaving behind a narrow, tube-shaped stomach. This not only reduces stomach volume but also decreases the secretion of the hunger hormone ghrelin.

How Is Sleeve Gastrectomy Performed?

The procedure is usually done laparoscopically under general anesthesia. The patient typically stays in the hospital for 2–3 days. During surgery, the stomach is divided and stapled using a specialized surgical device to reduce its size.

Who Is a Candidate?

• Individuals with BMI ≥ 40
• Individuals with BMI ≥ 35 and comorbidities such as type 2 diabetes or hypertension
• Patients who have failed to lose weight through diet, exercise, and medication
• Those who are psychologically and physically suitable for surgery

Postoperative Process:

• Liquid and soft foods in the first weeks
• Regular dietitian follow-up
• Vitamin and mineral supplementation
• Gradual reintroduction of physical activity
• Rapid weight loss: up to 50% of excess body weight may be lost within the first 6 months

Frequently Asked Questions:

• Can the weight come back? Yes, if lifestyle changes are not maintained, weight regain is possible.
• Will diet change permanently? Yes. Smaller stomach capacity requires reduced portion sizes and healthy eating habits.
• What are the risks? Potential complications include bleeding, leakage, infection, and nutritional deficiencies—but these are rare when performed by experienced surgeons.

Sleeve gastrectomy is not only effective for weight loss but also significantly improves control over obesity-related conditions such as diabetes, hypertension, and sleep apnea.