What is gastric sleeve surgery?
Gastric sleeve surgery (sleeve gastrectomy) involves laparoscopically removing approximately 75–80% of the stomach, leaving a narrow tube — or "sleeve" — shaped stomach. This reduces the amount you can eat at one sitting and lowers levels of the hunger hormone ghrelin, promoting long-term weight loss through both restriction and hormonal change.
Who is a suitable candidate?
Gastric sleeve surgery is generally recommended for adults with a BMI of 40 kg/m² or above, or a BMI of 35 or above accompanied by obesity-related health conditions such as Type 2 diabetes, hypertension or sleep apnoea. Patients should be committed to long-term dietary and lifestyle changes. Suitability is confirmed after a thorough medical assessment.
The Painless Gastric Sleeve — Dr. Katar's enhanced approach
Dr. Katar performs sleeve gastrectomy using his Painless Gastric Sleeve protocol: paragastric block anaesthesia, a no-drain no-NGT approach where clinically appropriate, and an early mobilisation programme. This results in significantly less post-operative pain and nausea compared to conventional sleeve gastrectomy.
Recovery and results
Most patients are discharged within 1–2 days and can return to desk-based work within 1–2 weeks. A progressive diet — liquids, then purée, then soft and solid foods — is followed over 4–6 weeks. Most patients lose 60–70% of their excess weight within 12–18 months. Vitamin and mineral supplementation, plus regular follow-up, is essential for long-term success.
Frequently Asked Questions
Most patients lose 60–70% of their excess body weight within 12–18 months. Long-term results depend on dietary habits, physical activity and follow-up care.
The general guideline is BMI ≥ 40 kg/m², or BMI ≥ 35 with at least one obesity-related comorbidity. Each case is assessed individually.
Most patients are discharged within 1–2 days. Desk-job workers typically return to work within 1–2 weeks. Full dietary progression takes approximately 4–6 weeks.
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