Surgical management of penetrating pulmonary injuries

Table 1 American Association for the Surgery of Trauma – Organ Injury Scaling: Lung Injury [27]

Grade^a	Injury Type	Description^b
I	Contusion	Unilateral, < 1 lobe
II	Contusion	Unilateral, single lobe
	Laceration	Simple pneumothorax
III	Contusion	Unilateral, > 1 lobe
	Laceration	Persistent (> 72 hours), air leak from distal airway
	Hematoma	Non-expanding intraparenchymal
IV	Laceration	Major (segmental or lobar) air leak
	Hematoma	Expanding intraparenchymal
	Vascular	Primary branch intrapulmonary vessel disruption
V	Vascular	Hilar vessel disruption
VI	Vascular	Total, uncontained transection of pulmonary hilum

^a Advance one grade for multiple injuries up to grade III. Hemothorax is scored under thoracic vascular organ injury scale.
^b Based on most accurate assessement at autopsy, operation, or radiological study.

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