cHOMA 材料和方法 肾损伤程度参照美国创伤协会(AAST)分级方法 Grade Injury Description of injury Contusion Microscopic of gross hematuria, urologic studies normal Hematoma Subcapsular, nonexpanding without parenchymal laceration Hematoma Nonexpanding perirenal hematoma confirmed to renal retroperitoneum Laceration <1.0 cm parenchymal depth of renal cortex without urinary extravasation Laceration >1.0 cm parenchymal depth of renal cortex without collecting system rupture or urinary extravasation Laceration Parenchymal laceration extending through renal cortex, medulla and collecting system ascular Main renal artery or vein injury with contained hemorrhage Laceration Completely shattered kidney Vascular Avulsion of renal hilum that devascularizes kidney小儿泌尿外科 材料和方法 ➢ 肾损伤程度参照美国创伤协会（AAST）分级方法 Grade Injury Description of injury Ⅰ Contusion Microscopic of gross hematuria, urologic studies normal Hematoma Subcapsular, nonexpanding without parenchymal laceration Ⅱ Hematoma Nonexpanding perirenal hematoma confirmed to renal retroperitoneum Laceration <1.0 cm parenchymal depth of renal cortex without urinary extravasation Ⅲ Laceration >1.0 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 that devascularizes kidney