AAST Bladder Injury Scale AAST Bowel Injury Scale AAST Cardiac Injury Scale AAST Diaphragm Injury Scale AAST Hepatic Injury Scale AAST Kidney Injury Scale AAST Lung Injury Scale AAST Pancreatic Injury Scale AAST Rectal Injury Scale AAST Splenic Injury Scale AAST Vascular Injury Scale ABC Score (Massive Transfusion)ACS COT Field Triage Guidelines ATLS Hemorrhagic Shock Classification Abbreviated Injury Scale (AIS)Ankle-Brachial Index (ABI) in Trauma Base Deficit in Trauma Brain Injury Guidelines (BIG) Score Cardiac Wound Index Chest Trauma Score (CTS)Damage Control Decision Score (DCDS)Denver Criteria (BCVI)Esophageal Perforation Severity Score (PSS)Expanded Denver Criteria (BCVI)Flint Colon Injury Scale Frailty Index in Trauma (mFI-5)Geriatric Trauma Outcome Score (GTOS)Hard Signs of Vascular Injury Checklist Hemorrhage Control Decision Aid (Wound Packing vs. Tourniquet)ICP-based Cerebral Perfusion Pressure (CPP) Calculator Injury Severity Score (ISS)Injury Severity Score — Age-adjusted (ISS-Age)Lethal Triad / Trauma Triad of Death Calculator Limb Salvage Index (LSI)Mangled Extremity Severity Score (MESS)Mechanism, Glasgow Coma Scale, Age, and Arterial Pressure (MGAP)Memphis Criteria (BCVI)Modified Shock Index (MSI)Nerve Injury, Ischemia, Soft-tissue, Skeletal Injury, Shock, Age (NISSSA)New Injury Severity Score (NISS)Open Abdomen Classification (Björck)Pediatric Trauma Score (PTS)Pelvic Trauma Hemorrhage Risk Score Penetrating Abdominal Trauma Index (PATI)Physiologic Extreme Emergency in Trauma (FEET)Predictive Salvage Index (PSI)REBOA Zone Selection Guide Resuscitative Thoracotomy Indications (EAST/WTA Guidelines)Revised Trauma Score (RTS)RibScore Shock Index (SI)TASH Score TRISS Index Thoracic Trauma Severity Score (TTS)Tile Classification of Pelvic Fractures Trauma and Injury Severity Score — Pediatric (PTS)Young–Burgess Pelvic Fracture Classification

Recent Journal Updates

WHO NewsJun 23, 2026

WHO urges scale up of newborn screening to improve early detection and care of birth defects

Clinical Context

We think this might be relevant to the clinical guidance for American Association for the Surgery of Trauma (AAST) Hepatic Injury Scale.

WHO NewsJun 15, 2026

Open letter to leaders of G7, G20, BRICS and all nations on finalizing the WHO Pandemic Agreement’s Pathogen Access and Benefit Sharing annex

Clinical Context

We think this might be relevant to the clinical guidance for American Association for the Surgery of Trauma (AAST) Hepatic Injury Scale.

FDA MedWatchJun 10, 2026

FDA Approves Labeling Changes for Over-the-Counter (OTC) Weight Loss Drug alli (Orlistat) to Warn of Risk of Kidney Stones and Kidney Injury

Clinical Context

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

Anatomic / CT Findings

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.