In the management of short bowel syndrome (SBS) following massive small bowel resection, the minimum residual small bowel length associated with a reasonable chance of weaning from parenteral nutrition (PN) is approximately:

• A 10 cm with an intact colon and ileocaecal valve
• B 100 cm with an end jejunostomy (no colon)
• C 50 cm with an intact colon in continuity ✓
• D 150 cm regardless of colon continuity

Explanation

PN weaning thresholds in SBS: with intact colon in continuity — as little as 50–60 cm of jejunum may permit adaptation and eventual PN independence due to colonic salvage of unabsorbed carbohydrates and water; with end jejunostomy (no colon) — typically ≥100–120 cm residual jejunum is needed. The ileocaecal valve adds significant value by slowing transit and maintaining bacterial flora. GLP-2 analogues (teduglutide) enhance intestinal adaptation in PN-dependent SBS.

Reference: Bailey & Love's Short Practice of Surgery, 27th ed.

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Written and medically reviewed by the StethoPrep medical team.