Section: Small bowel Curriculum: Curriculum, page 58

Incidence

  • 1% of all SBO

Causes

  • Glass
  • metal fragments
  • pins
  • needles
  • toothpicks
  • fish bones
  • coins
  • whistles
  • toys
  • broken razor blades
  • gallstone

Symptoms/Signs

  • Abdominal pain, tenderness, fever, leucocytosis

Potential complications

  • Perforation
  • Obstruction
  • Ischaemia
  • Inflammation
  • Scarring
  • Toxic – batteries – mercury/lead

Radiology

  • If radio-opaque can follow with serial abdominal films

Management

  • Observational where possible – 95% of FN pass through GIT after leaving stomach
  • Small blunt objects less than 2.5 cm will pass
  • Indication for endoscopic removal
    • 2.5cm

    • Sharp
    • Battery
    • Multiple magnets
    • Failure to progress
  • Endoscopy; usually the esophagus is protected with an over-tube (a plastic tube of varying length), through which the gastroscope and retrieved objects are passed.
  • Once the foreign body has been identified with the gastroscope, various devices can be used
    • forceps
    • snares
    • oval loops
    • Roth baskets (mesh nets) and
    • magnets
    • Foley catheter

Indications for surgical intervention

  • If a foreign body cannot be retrieved endoscopically, daily radiographs should be performed to assess the object’s passage through the gastrointestinal tract.
  • Sսrgеrу
    • Complications (eg, obstruction, perforation)
    • Nonprogression of a foreign body
      • blunt object that remains in the same location distal to the duodenum for more than one week
      • sharp foreign body that does not advance rаԁiοgrаphiсаllу for three consecutive days
  • Operation – Enterotomy + Closure