Society for Vascular Surgery criteria:
| Classification | Description | Notes |
| Grade 1 | Intimal tear | Minimal Aortic Injury |
| Grade 2 | Intramural hematoma or large intimal flap | |
| Grade 3 | Pseudoaneurysm | |
| Grade 4 | Rupture |
New Harborview criteria:
| Classification | Description | Notes |
| Minimal | No external contour abnormality
Intimal tear/thrombus <10mm |
NO INTERVENTION:
Optional f/u imaging |
| Moderate | External contour abnormality or intimal tear >10 mm | SEMI-ELECTIVE REPAIR:
Impulse control, stabilize other injuries |
| Severe | Active extravasation
Left Subclavian Artery hematoma >15mm |
IMMEDIATE REPAIR:
BAI takes first priority |
References:
Azizzadeh, A., et al. (2009). “Blunt traumatic aortic injury: initial experience with endovascular repair.” J Vasc Surg 49(6): 1403-1408.
Heneghan, R. E., et al. (2016). “Call for a new classification system and treatment strategy in blunt aortic injury.” J Vasc Surg 64(1): 171-176.