Blunt Aortic Injury Grading System of Gavant

Gavantreported classification for blunt aortic trauma (BAI). The author is from the University of Tennessee.

Patient selection: blunt aortic trauma (BAI)

Parameters:

(1) aorta

(2) mediastinal hematoma

(3) involvement of ascending aorta, arch or great vessel

Aorta	Mediastinal Hematoma	Involvement Sites	Grade
normal	absent	NA	IA
normal	present	NA	IB
minimal aortic injury, small pseudoaneurysm, flap, thrombus	absent	NA	IIA
minimal aortic injury, small pseudoaneurysm, flap, thrombus	present	NA	IIB
regular and well-defined pseudoaneurysm > 1 cm with intimal flap or thrombus	present	absent	IIIA
regular and well-defined pseudoaneurysm > 1 cm with intimal flap or thrombus	present	present	IIIB
total aortic disruption	present	NA	IV
large, irregular and poorly defined pseudo-aneurysm with intimal flap or thrombus	present	NA	IV

where:

• A small pseudoaneurysm would be < 1 cm.

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