Weight Loss Surgery Types: AGB, VBG, Sleeve, RYGB, SAGB Compared

  • AGB (Lap-Band): Adjustable band around proximal stomach; reversible, less weight loss, high reoperation.
  • VBG: Stapled vertical pouch + band; obsolete, high complication rate.
  • Sleeve (LSG): 80% stomach resection → tube; restrictive, hormonal (ghrelin↓), now most common.
  • RYGB: Small pouch + Roux limb; restrictive + malabsorptive; gold standard for metabolic effect.
  • SAGB (OAGB/MGB): Single anastomosis; simpler than RYGB, similar efficacy, bile reflux risk.

Selection based on BMI, comorbidities, anatomy, surgeon expertise, patient preference. Multidisciplinary evaluation mandatory.

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