Skip to main content

Table 1 Abbreviated Injury Score (AIS) for bronchoscopic gradation of inhalation injury

From: Chest computed tomography performed on admission helps predict the severity of smoke-inhalation injury

Grade Findings
Grade 0 (no injury) Absence of carbonaceous deposits, erythema, edema, bronchorrhea, or obstruction
Grade 1 (mild injury) Minor or patchy areas of erythema, carbonaceous deposits in proximal or distal bronchi (any or combination)
Grade 2 (moderate injury) Moderate degree of erythema, carbonaceous deposits, bronchorrhea, with or without compromise of the bronchi (any or combination)
Grade 3 (severe injury) Severe inflammation with friability, copious carbonaceous deposits, bronchorrhea, bronchial obstruction (any or combination)
Grade 4 (massive injury) Evidence of mucosal sloughing, necrosis, endoluminal obliteration (any or combination)