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Laparoscopic Gastric Bypass Surgery

Laparoscopic Gastric Bypass Surgery

Bariatric Surgery — Roux-en-Y Gastric Bypass (RYGB)

Roux-en-Y gastric bypass (RYGB) is one of the most effective and well-established bariatric procedures worldwide, performed at The Specialty Hospital laparoscopically under the supervision of a highly experienced surgical team. The procedure works through two primary mechanisms:

  1. Restriction — reducing food intake capacity by creating a significantly smaller stomach
  2. Malabsorption — limiting nutrient absorption by bypassing a portion of the small intestine

Together, these two mechanisms make RYGB the procedure associated with the highest average weight loss outcomes compared to all other bariatric interventions

Surgical Mechanis

The procedure involves two key steps:

  • Creation of a small gastric pouch of no more than 30 mL from the upper portion of the stomach
  • Rerouting of the small intestine to connect directly to the new pouch, bypassing the original stomach and the first segment of the small intestine

The procedure is performed laparoscopically through small abdominal incisions, minimizing postoperative pain and accelerating recovery

Indications — Based on Updated ASMBS/IFSO 2022 Guidelines

Current updated indications include:

  • BMI ≥ 35 kg/m² regardless of the presence or absence of obesity-related comorbidities
  • BMI between 30 and 34.9 kg/m² with type 2 diabetes (T2DM), gastroesophageal reflux disease (GERD), or other obesity-related medical conditions
  • BMI between 30 and 34.9 kg/m² when non-surgical interventions have failed to achieve adequate results
  • RYGB is preferred over sleeve gastrectomy in cases of severe GERD or advanced type 2 diabetes

All patients undergo a comprehensive multidisciplinary preoperative evaluation encompassing surgical, nutritional, psychological, and medical assessments

What to Expect After Surgery

Most patients are hospitalized for 1 to 2 days and resume normal physical activities within 4 to 6 weeks. The standard postoperative protocol includes:

  • Pain and nausea management with minimal opioid use.
  • Prophylactic anticoagulation therapy to prevent deep vein thrombosis.
  • Early mobilization immediately following surgery, as part of the Enhanced Recovery After Surgery (ERAS) protocol
  • A progressive diet advancing through clear liquids, full liquids, pureed foods, and finally solid foods over several weeks
  • Ongoing nutritional follow-up with mandatory lifelong vitamin and mineral supplementation, given the malabsorptive nature of the procedure

Expected Outcomes

Based on multicenter studies and 2024–2025 systematic reviews:

  • Average excess weight loss (EWL) of 60–75% over a 5 to 10-year follow-up period
  • Sustained weight loss of approximately 23% of total body weight at 20 years
  • Improvement in type 2 diabetes in 70–80% of patients, with a clear advantage over sleeve gastrectomy — even in cases of weight regain
  • Meaningful improvements in hypertension, dyslipidemia, obstructive sleep apnea, and joint pain

It is worth noting that RYGB is the preferred procedure in the presence of severe GERD or advanced type 2 diabetes, in accordance with the 2022 updated guidelines

Comprehensive Care at The Specialty Hospital

The Specialty Hospital provides an integrated multidisciplinary approach before, during, and after surgery — encompassing bariatric surgeons, internal medicine physicians, clinical dietitians, and psychological support

Lifelong vitamin and mineral supplementation and regular long-term follow-up are considered fundamental pillars in ensuring sustained weight loss outcomes and long-term patient safety

 

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