Table 3.

Renal injury scale – American Association for Surgery of Trauma[3]

Grade	Type	Description
Grade (I)	Contusion	Gross or microscopic hematuria
	Hematoma	Non-expanding subcapsular hematoma, parenchyma spared
Grade (II)	Hematoma	Confined non-expanding perirenal hematoma
	Laceration	< 1 cm parenchymal tear without urine extravasation
Grade (III)	Laceration	> 1 cm parenchymal tear without urine leakage
Grade (IV)	Laceration	Parenchymal tear across the renal cortex, medulla and collecting system
	Vascular	Injury to major branch of renal artery or vein with contained hemorrhage
Grade (V)	Laceration	Kidney is completely shattered
	Vascular	Devascularized kidney from renal hilum avulsion

Citation: Coccolini F, Moore EE, Kluger Y, Biffl W, Leppaniemi A, Matsumura Y, Kim F, Peitzman AB, Fraga GP, Sartelli M, Ansaloni L, Augustin G, Kirkpatrick A, Abu-Zidan F, Wani I, Weber D, Pikoulis E, Larrea M, Arvieux C, Manchev V, Reva V, Coimbra R, Khokha V, Mefire AC, Ordonez C, Chiarugi M, Machado F, Sakakushev B, Matsumoto J, Maier R, di Carlo I, Catena F; WSES-AAST Expert Panel. Kidney and uro-trauma: WSES-AAST guidelines. World J Emerg Surg 2019; 14: 54. Copyright© The Authors 2019. Published by BMC. The authors have obtained the permission for table using from the BMC Publishing Group (Supplementary material).