Renal trauma: imaging evaluation and implications for clinical management

Area of Science:

• Urology
• Radiology
• Trauma Surgery

Background:

• Severe renal injuries often accompany multisystem trauma.
• These injuries may necessitate interventional radiology for hemorrhage control and renal salvage.
• They have a higher likelihood of nonoperative management failure.

Purpose of the Study:

• To highlight the importance of the American Association for the Surgery of Trauma (AAST) classification in renal injuries.
• To emphasize the role of CT with intravenous contrast in diagnosing renal trauma.
• To underscore the significance of reporting contrast extravasation for predicting management outcomes.

Main Methods:

• Utilizing CT with intravenous contrast as the primary imaging modality.
• Applying the AAST classification system for grading renal injuries.
• Identifying and reporting contrast extravasation to indicate active bleeding.

Main Results:

• Most renal injuries are mild and amenable to conservative management.
• Severe renal injuries require careful consideration for interventional radiology and surgical intervention.
• Contrast extravasation on CT is a key predictor of nonoperative management failure.

Conclusions:

• Accurate grading of renal injuries using the AAST system is crucial for guiding surgical decisions.
• Radiologists play a vital role in identifying renal trauma and informing management strategies.
• Prompt recognition of active bleeding through contrast extravasation improves patient outcomes.