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