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Table 1 Organ injury scale of the American Association for the Surgery of Trauma

From: Two-stage pancreatic head resection after previous damage control surgery in trauma: two rare case reports

Injured structure and AAST grade

Characteristics of injury

AIS − 2005 score

Pancreas

 I

Small hematoma without duct injury; superficial laceration without duct injury

2

 II

Large hematoma without duct injury or tissue loss; major laceration without duct injury or tissue loss

2

 III

Distal transection or parenchymal laceration with duct injury

3

 IV

Proximal transection or parenchymal laceration involving ampulla

4

 V

Massive disruption of pancreatic head

5

Duodenum

 I

Single-segment hematoma; partial-thickness laceration without perforation

2

 II

Multiple-segment hematoma; small (\50% of circumference) laceration

2

 III

50–75% Disruption (laceration) of segment D2 or 50–100% disruption of segment D1, D3, or D4

3

 IV

Large (75–100%) laceration of segment D2; rupture of ampulla or distal CBD

4

 V

Massive duodenopancreatic injury; devascularization of duodenum

5

  1. Scores were collected from the organ injury scale of the American Association for the Surgery of Trauma [9] and the Abbreviated Injury Scale (AIS 2005) [10]