We think this might be relevant to the clinical guidance for American Association for the Surgery of Trauma (AAST) Hepatic Injury Scale.
AAST Hepatic Injury Scale
AASTHepatic Injury Scale
Awaiting Data
Select the anatomic grade based on CT imaging or operative findings to see the evidence-based management strategy.
Guidelines & Evidence
Verified
Last Review: 2026
When to Use
The AAST Hepatic Injury Scale is indicated for all patients with suspected blunt or penetrating liver trauma. It is most commonly applied in hemodynamically stable patients undergoing contrast-enhanced CT imaging and in those requiring operative exploration. The scale stratifies injury severity to predict the likelihood of successful non-operative management (NOM) versus the need for damage control laparotomy, angioembolization, or packing.
The scale alone does not dictate management. Hemodynamic stability, base deficit, lactate clearance, and associated injuries (e.g., pelvic fracture, bowel injury) are more important determinants than anatomic grade.