AAST Duodenum Injury Scale
AAST duodenum OIS (Moore 1990)Grades duodenal trauma from intramural hematoma of a single portion through circumferential disruption, ampullary involvement, and massive pancreaticoduodenal destruction or devascularization.
Also searched as: trauma · pancreaticoduodenal · hollow viscus · bowel
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- Please provide: AAST duodenum injury grade.
How this tool works
Duodenal injuries are uncommon but highly morbid because of retroperitoneal location, shared blood supply with the pancreas, and the volume of biliary–pancreatic secretions at risk of leakage. AAST grades capture hematoma extent (single versus multiple portions), percentage circumference of laceration by duodenal segment (D1–D4), involvement of the ampulla or distal bile duct, and destructive pancreaticoduodenal complex injury. Isolated hematomas are often managed non-operatively with nasogastric decompression. Full-thickness lacerations need prompt repair; destructive grade IV–V injuries may require pyloric exclusion, duodenal diverticulization, or pancreaticoduodenectomy after physiologic stabilization.
References
- Moore EE, et al. J Trauma 1990;30:1427-1429 (duodenum OIS)
- Western Trauma Association — Duodenal injuries critical decisions
- AAST Injury Scoring Scale index
Implemented from the cited published sources. Educational use only; confirm against current guidelines before clinical use.
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