Duodenum Injury Scale | Medicalalgorithms.com

Traumatic injury to the duodenum can be graded using the Duodenum Injury Scale.

Type of Injury	Extent	Grade
hematoma	involving a single portion of the duodenum	I
	involving more than one portion	II
laceration	partial thickness without perforation	I
	disruption < 50% of circumference	II
	disruption of 50-75% circumference of the second portion	III
	disruption of 50-100% circumference of the first, third or fourth portions	III
	disruption of > 75% of circumference of second portion	IV
	involvement of ampulla or distal bile duct	IV
	massive disruption of duodenum and pancreas	V
vascular	desvascularization of the duodenum	V

If there are multiple injuries, then the final grade is increased by 1 up to Grade III.

where:

• I am assuming Grade II can be raised to Grade III but not Grade III to Grade IV.

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