A 70-year-old patient develops adhesive small bowel obstruction (ASBO) with CT showing a transition point and no free air, no bowel wall thickening, and no mesenteric edema. He has mild abdominal pain and is passage-free for 24 hours. According to WSACS and EAST 2012 guidelines, the INITIAL management should be:
- A Non-operative management with Gastrografin (water-soluble contrast) challenge at 24-48 hours ✓
- B Immediate surgical exploration — all complete ASBOs require surgery within 24 hours
- C Nasogastric decompression alone without contrast challenge
- D Long intestinal tube (Miller-Abbott) decompression for 5 days
Explanation
For ASBO without signs of strangulation (no free air, no bowel ischemia on CT, no peritonitis on examination), non-operative management with the Gastrografin (diatrizoate meglumine) challenge is supported by multiple trials and guidelines. Gastrografin has both diagnostic (contrast reaching colon within 4-24 hours indicates partial or resolving obstruction) and therapeutic effects (hyperosmolar effect draws fluid into bowel lumen, reducing edema and promoting resolution). The Bologna guidelines recommend Gastrografin challenge at 24-48 hours for CT-confirmed ASBO without strangulation. Early signs of strangulation (tachycardia, fever, leukocytosis, severe peritonism, closed-loop obstruction) mandate immediate surgery.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.