Gastric Bypass (Roux-en-Y)

What is Roux-en-Y Gastric Bypass?

Roux-en-Y Gastric Bypass (RYGB) is a surgical weight-loss procedure that creates a small pouch from the top of the stomach and attaches it directly to the small intestine. By bypassing a portion of the stomach and upper small intestine (duodenum), the surgery restricts calorie intake and reduces calorie and nutrient absorption.

Who Needs Gastric Bypass?

It is recommended for individuals with severe obesity, particularly those suffering from severe Type 2 Diabetes or Acid Reflux (GERD) where sleeve gastrectomy might be less suitable.

Key clinical indicators include:

• BMI ≥ 35 kg/m² with severe uncontrolled Type 2 Diabetes or severe GERD.
• BMI ≥ 40 kg/m².
• Patients with previous failed weight-loss interventions or severe metabolic syndrome.

Dual Mechanism of Action

• Restriction: The tiny stomach pouch (approx. 30 ml volume) limits meal sizes.
• Malabsorption: Bypassing the duodenum and proximal jejunum decreases calorie and fat uptake.

Benefits of Gastric Bypass

1. Exceptional weight loss (70% - 80% excess weight loss in 1-2 years).
2. Rapid and high rate of Type 2 Diabetes remission (often within days of surgery).
3. Excellent cure rates for chronic acid reflux (GERD).
4. Long-term durability supported by decades of clinical data.

What to Expect Before Surgery?

• Endoscopy & Imaging: Upper GI endoscopy to check stomach mucosa.
• Multidisciplinary Evaluation: Assessment by bariatric surgeon, endocrinologist, dietitian, and psychologist.
• Liver-Shrinking Diet: Low-calorie, liquid-based diet 2 weeks prior to surgery.

Complete Procedure

1. General anesthesia is administered.
2. Laparoscopic keyholes (5-6 small ports) are established in the upper abdomen.
3. The upper stomach is divided to form a small 30ml stomach pouch.
4. The small intestine is divided; the lower end (Roux limb) is brought up and connected to the new pouch (gastrojejunostomy).
5. The upper severed end of the intestine is reconnected lower down the Roux limb (jejunojejunostomy) to allow digestive juices to mix with food.
6. Leak test performed and keyholes closed.

What to Expect During Surgery?

Operating room time is approximately 90 to 120 minutes. The patient is kept under complete general anesthesia and observed in recovery/ICU overnight before step-down ward admission.

Laparoscopic vs Robotic Gastric Bypass

Success Rate and Safety

RYGB is widely recognized as the gold standard in bariatric surgery, achieving diabetes remission in up to 80% of patients and durable weight maintenance over 10-20 years.

Gastric Bypass Surgery Cost Estimate

Disclaimer: Package price includes specialized staplers, hospitalization, anesthesia, and early follow-up visits.

Recovery Guide & Post-Operative Care

Dietary Progression

• Phase 1 (Week 1-2): Clear liquids, dilute juices, protein supplements.
• Phase 2 (Week 3-4): Smooth, pureed protein foods.
• Phase 3 (Week 5-6): Soft cooked foods.
• Phase 4: Solid high-protein meals in small, frequent portions.

Post-Op Precautions & Care

• Life-long Supplementation: Vitamin B12, Iron, Calcium, and Multivitamins are mandatory.
• Dumping Syndrome Prevention: Avoid simple sugars and high-fat foods.