American Association for the Surgery of Trauma Organ Injury Severity Scale for the Kidney:

Grade -

Type: Description

I -

Contusion: Microscopic or gross hematuria, urologic studies normal

Hematoma: Subcapsular, nonexpanding without parenchymal laceration

II -

Hematoma: Nonexpanding perirenal hematoma confined to renal retroperitoneum

Laceration: <1 cm parenchymal depth of renal cortex without urinary extravasation

III -

Laceration: >1 cm parenchymal depth of renal cortex without collecting system rupture or urinary extravasation

IV -

Laceration: Parenchymal laceration extending through renal cortex, medulla, and collecting system

Vascular: Main renal artery or vein injury with contained hemorrhage

V -

Laceration: Completely shattered kidney

Vascular: Avulsion of renal hilum, devascularizing the kidney

Nguồn từ Campbell 2007: renal injuries.

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