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TRAUMA SCORING
ORGAN INJURY SCALE

 

 

 

 

Organ Injury Scaling
Lung

Grade Injury Description AIS-90
I Contusion Unilateral, <1 lobe 3
 
II Contusion Unilateral, single lobe 3
Laceration Simple pneumothorax 3
 
III Contusion Unilateral, >1 lobe 3
Laceration Persistent (>72 hrs), airleak from distal airway. 3-4
Haematoma Nonexpanding intraparenchymal 3-4
 
IV Laceration Major (segmental or lobar) airway leak. 4-5
Haematoma Expanding intraparenchymal 4-5
Vascular Primary branch intrapulmonary vessel disrupion 3-5
 
V Vascular Hilar vessel disruption 4
 
VI Vascular Total, uncontained transection of pulmonary hilum 4
 
Advance one grade for bilateral injuries.
Haemothorax is graded by thoracic vascular OIS.