Table 1: AAST-scale for classification of abdominal upper GI injuries [36].

Grade	Type of injury	Description of injury
		Stomach	Duodenum
1	Hematoma	Contusion or hematoma	Involving single portion of duodenum
	Laceration	Partial-thickness	Partial-thickness, no perforation
	Hematoma		Involving more than one portion
II	Laceration	Laceration < 2 cm in GE junction or pylorus; < 5 cm in proximal 1/3 stomach; < 10 cm in distal 1/3 stomach	Disruption < 50% of circumference
III	Laceration	Laceration > 2 cm in GE junction or pylorus; > 5 cm in proximal 1/3 stomach; > 10 cm in distal 1/3 stomach	Disruption 50%-75% of circumference of D2; Disruption 50%-100% of circumference of D1, D3, D4
IV		Tissue loss or devascularization < 2/3 stomach	Disruption > 75% of circumference of D2, involving ampulla or distal common bile duct
V		Tissue loss or devascularization > 2/3 stomach	Massive disruption of duodenopancreatic complex; devascularization of duodenum

D1 first position of duodenum

D2 second position of duodenum

D3 third position of duodenum

D4 fourth position of duodenum