
Clinical Overview
Laparoscopic Sleeve Gastrectomy, commonly referred to as the Gastric Sleeve, is a leading metabolic and bariatric procedure. It is designed to assist individuals with severe clinical obesity in achieving substantial, long-term weight reduction. Beyond weight management, it serves as a powerful therapeutic intervention that triggers metabolic changes to resolve or significantly improve type 2 diabetes, high blood pressure, sleep apnea, and joint issues.
Laparoscopic Sleeve Gastrectomy (Gastric Sleeve) is a highly effective bariatric and metabolic surgery designed to treat severe obesity, type 2 diabetes, hypertension, and sleep apnea. The procedure involves removing approximately 75-80% of the stomach structure using high-precision surgical staplers, leaving a narrow, sleeve-like pouch resembling a banana. This restricts food capacity and significantly alters metabolic pathways, including reducing the production of Ghrelin (the hunger hormone). The surgery is executed laparoscopically to guarantee minimal tissue trauma, rapid recovery, and patient safety under the expertise of gold medalist surgeon Dr. Janak Malu.
Symptoms & Indications
If you are experiencing any of the following symptoms, a consultation with Dr. Janak Malu is highly recommended to explore your options:
The Surgical Process
Here is a step-by-step breakdown of how the advanced minimal access procedure is performed:
Abdominal Access
Under general anesthesia, the surgeon makes 4 to 5 keyhole incisions (5-12mm) in the upper abdomen to introduce instruments and the camera.
Stomach Mobilization
The blood vessels supplying the outer curved portion of the stomach are carefully separated and sealed using advanced energy devices.
Calibration and Sleeve Creation
A thin silicone tube (called a bougie) is inserted into the stomach to act as a sizing guide. Using high-precision surgical staplers, the surgeon cuts and seals the stomach along the guide.
Stomach Removal
Approximately 75% to 80% of the stomach (the outer curvature) is divided and extracted through one of the keyhole incisions. The remaining stomach takes the shape of a narrow sleeve.
Leak Testing & Closure
An intraoperative test is conducted to ensure the staple line is completely airtight and leak-proof. The incisions are then closed with aesthetic sutures.
Laparoscopy vs Open Surgery
Understand the clinical differences and benefits of minimal access keyhole surgery compared to conventional methods:
| Parameter | Sleeve Gastrectomy | Traditional Gastric Bypass (RYGB) |
|---|---|---|
| Anatomy Alteration | Stomach reduced to a tube; intestines untouched | Stomach reduced to a tiny pouch & connected directly to middle intestine |
| Mechanism | Restrictive (limits food intake) & Hormonal control | Restrictive, Malabsorptive (skips part of intestine) & Hormonal |
| Hunger Suppression | Excellent (removes major Ghrelin producing area) | Good (due to bypass hormones) |
| Vitamin Malnutrition | Low risk; nutrient absorption is normal | Higher risk; requires lifelong strict supplements |
| Dumping Syndrome | Extremely rare | Common after eating sugary foods |
| Procedure Complexity | Moderate; shorter operating times | High; technically complex with more connections |
Why Choose Laparoscopic Approach?
- Substantial weight loss, with patients typically losing 60% to 70% of their excess body weight within 12 to 18 months.
- Remarkable remission rates or clinical improvement in type 2 diabetes, chronic hypertension, and sleep apnea.
- Reduction in hunger cravings due to the removal of the stomach portion that produces Ghrelin (the hunger hormone).
- Preservation of normal bowel absorption; unlike gastric bypass, the intestinal tract remains untouched, minimizing malnutrition.
- Minimally invasive keyhole surgery ensuring minor pain, low wound complication rates, and rapid mobility.
Recovery Timeline & Post-Op Guidelines
Patient mobilization and customized home-care directives facilitate safe and prompt healing:
Mobilization begins on the same day. Strict clear liquid diet (water, clear apple juice, broth) is introduced in small sips.
Transition to thick liquids (buttermilk, protein shakes, strained thin dal soup). Walking 20-30 mins daily is crucial.
Gradual advancement to pureed and mashed soft foods (mashed papaya, soft upma, mashed curd-rice). Eat slowly.
Normal solid foods are slowly introduced in tiny quantities. Focus on high-protein foods. Never drink liquids during meals.
Frequently Asked Questions
Find answers to common concerns regarding the procedure, safety, and hospital directives:
Q: How much weight can I expect to lose?▼
Q: Will my stomach stretch back over time?▼
Q: Is the procedure reversible?▼
Q: How long does the gastric sleeve surgery take and what is the recovery?▼
Request Consultation
Consult with Gold Medalist surgeon Dr. Janak Malu regarding Sleeve Gastrectomy diagnostics, cashless insurance, and surgery costs at Janahit Hospital.
Expert Surgeon

Dr. Janak Mahesh Malu
Gold Medalist Surgeon
MBBS, MS (Surgery), FNB-MAS (Minimal Access Surgery)