Table 1: Duodenal injury severity scale.

GradeInjury

(I)Hematoma involving single portion of wall
Laceration: partial thickness, no perforation

(II) Hematoma involving more than 1 portion
Laceration: <50% circumference distribution

(III)Laceration: disruption 50%–75% circumference of 2nd portion
Disruption 50%–100% circumference of 1st, 3rd, or 4th portions

(IV)Laceration: disruption of >75% circumference of 2nd portion
Involvement of ampulla or distal common bile duct

(V)Laceration: massive disruption of duodenopancreatic complex
Duodenal devascularization