Table 3.

Denver Grading Scale in BCVI, Treatment and Outcome

	Treatment (%)			Complications/outcome (%)
	None	Medication	Vascular IVR	No complications	Brain infarction	Dead
Overall (n = 53)	35 (66)	1 (2)	17 (32)	45 (85)	6 (11)	2 (4)
Grade I (n = 10)	8 (80)	0	2 (20)	10 (100)	0	0
II (n = 4)	3 (75)	0	1 (25)	3 (75)	1 (25)	0
III (n = 1)	0	0	1 (100)	1 (100)	0	0
IV (n = 29)	24 (83)	1 (3)	4 (14)	23 (79)	4 (14)	2 (7)
V (n = 9)	0	0	9 (100)	8 (89)	1 (11)	0

BCVI, blunt cerebrovascular injury; IVR, interventional radiology; VA, vertebral artery;

IMH, intramural hematoma; AVF, arteriovenous fistula.

Grade I: Vessel wall irregularity, dissection, or IMH with <25%, luminal stenosis

  II: Any raised intimal flap, Any intraluminal thrombus, Dissection or IMH with >25% luminal stenosis

  III: Arterial pseudoaneurysm

  IV: Arterial occlusion

  V: Arterial transection and/or AVF