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One Anastomosis Gastric Bypass

From Surgopaedia

"Single-anastomosis gastric bypass" or "mini-bypass" (interestingly the 'mini' originally referred to minimally invasive)

  • Restrictive
  • Malabsorptive
  • Length of loop from DJ flexure is important w/r/t malabsorption
    • Very variable between surgeons
    • 150cm from DJ flexure most commonly
    • Some surgeons up to 3m
  • Similar weight loss to RYGB

Similar to Bilroth 2 procedure

More nutritional complications than RYGB


Technique

  • 45mm linear stapler right angles to lesser curve
  • 36Fr bougie
  • Multiple fires to GOJ
  • No buttressing or reinforcement suturing
  • Handsewn anastomosis
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