Trauma Injury Scoring Scale for Kidney
References:
- AAST (American Association for the Surgery of Trauma) 2018 guideline for renal injury scoring.
- Organ injury scaling: spleen, liver, and kidney. Moore EE, Shackford SR, Pachter HL, McAninch JW, Browner BD, Champion HR, Flint LM, Gennarelli TA, Malangoni MA, Ramenofsky ML, Trafton PG. J Trauma. 1989 Dec;29(12):1664-6.
- Organ injury scaling: spleen and liver (1994 revision). Moore EE, Cogbill TH, Jurkovich GJ, Shackford SR, Malangoni MA, Champion HR. J Trauma. 1995 Mar;38(3):323-4.
More about this calculator:
Welcome to our comprehensive toolset designed to help healthcare professionals assess and grade liver, spleen, and kidney injuries based on imaging findings. Our calculators, built around the American Association for the Surgery of Trauma (AAST) guidelines, provide a systematic approach to evaluate the severity of organ injuries. Although these tools are independent and not endorsed by AAST, they are crafted to align closely with their established grading scales.
Kidney Injury Grading Calculator
Purpose: To facilitate the evaluation of kidney injuries by providing a structured grading system based on the AAST Kidney Injury Scale.
Grading Criteria (2018 Revision):
- Grade I: AIS Severity 2
- Subcapsular hematoma and/or parenchymal contusion without laceration
- Nonexpanding subcapsular hematoma
- Grade II: AIS Severity 2
- Perirenal hematoma confined to Gerota fascia
- Renal parenchymal laceration ≤1 cm depth without urinary extravasation
- Grade III: AIS Severity 3
- Renal parenchymal laceration >1 cm depth without collecting system rupture or urinary extravasation
- Grade IV: AIS Severity 4
- Parenchymal laceration extending into urinary collecting system with urinary extravasation
- Renal pelvis laceration and/or complete ureteropelvic disruption
- Segmental renal vein or artery injury
- Active bleeding beyond Gerota fascia into the retroperitoneum or peritoneum
- Segmental or complete kidney infarction(s) due to vessel thrombosis without active bleeding
- Grade V: AIS Severity 5
- Main renal artery or vein laceration or avulsion of hilum
- Devascularized kidney with active bleeding
- Shattered kidney with loss of identifiable parenchymal renal anatomy
How to Use the Calculators
- Select the Organ: Choose whether you need to grade an injury to the liver, spleen, or kidney.
- Input Imaging Findings: Enter the details from the imaging studies, such as the extent of hematoma, depth of laceration, and presence of vascular injuries.
- Calculate the Grade: The calculator will process the input data according to the AAST guidelines and provide an injury grade.
- Clinical Application: Use the calculated grade to inform clinical decisions, guide management strategies, and facilitate communication within the trauma care team.
Important Notes
These calculators are independent tools and are not officially endorsed by the AAST. Always consider clinical context and other relevant factors when using these tools for patient care. Refer to the latest AAST guidelines and literature for detailed descriptions and updates on injury grading.
