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Roux‑en‑Y One‑Anastomosis Gastric Bypass in Korea

Treatment Overview

Roux‑en‑Y One‑Anastomosis Gastric Bypass (OAGB) in Korea is an advanced bariatric procedure that combines the benefits of traditional Roux‑en‑Y surgery with a simplified one-anastomosis approach. This procedure reduces stomach volume and reroutes the small intestine to limit calorie absorption and optimize metabolic function, resulting in significant weight loss and improvement in obesity-related health conditions. Korean hospitals offer state-of-the-art laparoscopic and robotic-assisted surgery, along with comprehensive pre- and post-operative care, making it a preferred option for international medical tourists.

Purpose & Benefits

The OAGB procedure provides multiple benefits:

  • Significant and sustainable weight loss.
  • Improvement or remission of type 2 diabetes, hypertension, and dyslipidemia.
  • Enhanced hormonal regulation affecting appetite, satiety, and glucose metabolism.
  • Simplified surgical approach reduces operation time and potential complications.
  • Improved quality of life, energy levels, and overall health.

Ideal Candidates

OAGB is suitable for:

  • Adults with BMI ≥35 or BMI 30–34.9 with obesity-related comorbidities.
  • Patients with type 2 diabetes or metabolic syndrome seeking effective surgical intervention.
  • Individuals who have not achieved significant weight loss with diet, exercise, or medications.
  • Adults willing to adhere to long-term dietary, lifestyle, and follow-up care programs.

Possible Risks & Complications

While generally safe, potential risks include:

  • Standard surgical risks such as bleeding, infection, or anesthesia reactions.
  • Nutritional deficiencies if post-operative dietary guidance and supplementation are not followed.
  • Gastrointestinal issues such as nausea, diarrhea, or dumping syndrome.
  • Rare complications including leaks, strictures, or bile reflux.
    Korean hospitals reduce risks through meticulous pre-operative assessment, minimally invasive techniques, and structured post-operative monitoring.

Techniques & Technology Used

Korean hospitals utilize advanced methods for optimal outcomes:

  • Laparoscopic OAGB: Minimally invasive approach with faster recovery and smaller scars.
  • Robotic-Assisted Surgery (optional): Enhances precision for complex or high-risk cases.
  • Metabolic and Hormonal Monitoring: Tracks glucose, insulin, and appetite-regulating hormones.
  • Multidisciplinary Care: Surgeons, endocrinologists, dietitians, and psychologists collaborate for comprehensive care.
  • Post-Operative Digital Monitoring: Enables remote follow-up for international patients.

Treatment Process in Korea

  1. Consultation & Evaluation: Comprehensive assessment of BMI, metabolic health, and comorbidities.
  2. Pre-Operative Testing: Blood tests, imaging, hormonal and nutritional evaluation.
  3. Surgery: OAGB performed under general anesthesia, typically 1.5–3 hours.
  4. Hospital Stay: 2–3 days with multidisciplinary monitoring.
  5. Post-Operative Care: Includes dietary counseling, supplementation, exercise guidance, and regular follow-up visits for weight and metabolic management.

Recovery & After-Care

  • Immediate Post-Surgery: Early ambulation, hydration, and liquid diet.
  • Weeks 2–4: Gradual transition from liquid to soft foods, then solid foods under dietitian supervision.
  • Nutritional Supplements: Lifelong vitamins and minerals to prevent deficiencies.
  • Lifestyle Guidance: Balanced diet, exercise, and behavioral counseling for sustainable results.
  • Follow-Up Visits: Monitor weight, metabolic improvements, and overall health to ensure long-term success.

Results & Longevity

  • Patients typically achieve 60–75% excess weight loss within 12–18 months.
  • Significant improvement or remission of type 2 diabetes and other obesity-related metabolic disorders.
  • Lifelong adherence to diet, supplements, and lifestyle programs ensures sustained results.
  • High patient satisfaction due to effective weight loss and improved quality of life.

Why Korea Is a Top Destination

  • Highly experienced bariatric surgeons specializing in OAGB and metabolic surgery.
  • Advanced hospitals with laparoscopic and robotic-assisted surgery facilities.
  • Structured pre- and post-operative programs for international patients.
  • Competitive pricing combined with high-quality patient care and safety.
  • English-speaking staff, concierge services, and full medical tourism support.

Cost Range

  • Surgery alone: $10,000 – $18,000 USD
  • Full packages (including pre-op testing, hospital stay, dietary counseling, post-op care, and medical tourism support): $14,000 – $25,000 USD

Popular Clinics in Korea

  • Seoul National University Hospital – Bariatric & Metabolic Surgery Center
  • Asan Medical Center – One‑Anastomosis Gastric Bypass Unit
  • Samsung Medical Center – Bariatric Surgery & Metabolic Care Department
  • JK Plastic Surgery & Bariatric Center – OAGB Surgery Program
  • Korea University Anam Hospital – Integrated Bariatric & Metabolic Surgery Unit

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