Revision surgery is the surgery applied to patients who regain weight after bariatric surgery (gastric sleeve surgery-bypass surgeries), lose insufficient weight or due to complications. After 2023, if we change the surgical technique, the surgery is called conversion, if the technique is the same but we make a surgically corrective operation, it is called revision. Patients who regain weight after gastric sleeve surgery are scheduled for re-sleeve gastrectomy or mini gastric bypass surgery. One-anastomosis (Mini) Gastric Bypass (OAGB) or Roux-en-Y gastric bypass (RYGB) surgery is planned for revision due to stenosis.

Pouch reduction and distalization are also performed in patients who gain weight after One-anastomosis (Mini) Gastric Bypass (OAGB) or Roux-en-Y gastric bypass (RYGB) surgery.

Our clinic performs 25 bariatric surgeries monthly. Revision surgeries due to complications constitute around 10% of the procedures.

Who should have revision surgery?

  • Weight regaining: The rate of weight gain in patients after gastric band, sleeve gastrectomy or bypass surgery is 15% or more. Revision-conversion surgery is recommended if patients have a body mass index of 35 and above or have gained more than half of the weight they lost.
  • Stenosis: Revision surgery can be planned for patients who develop stenosis or twist (gastric volvulus) after sleeve gastrectomy.

Why do patients put on weight again?

After bariatric surgery, patients who cannot follow basic nutrition rules, make these rules a habit and start exercising can regain weight. The first year is especially important. This period is called the Honeymoon period. There is also a risk of weight regain after revision surgery. Good follow-up is key to successful results.

How do we prefer the surgical technique?

  • If the stomach is very enlarged or the gastric fundus is left in the first sleeve gastrectomy surgery technique, we perform a re-sleeve gastrectomy.
  • If the first surgery is sufficient but the person has gained weight due to caloric diet, we perform One-anastomosis (Mini) Gastric Bypass (OAGB).
  • If the first surgery is bypass, pouch reduction and distalization are recommended.

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