Clinical and Radiographic Factors Associated With Failed Renal Angioembolization: Results From the...

Area of Science:

• Urology
• Trauma Surgery
• Interventional Radiology

Background:

• High-grade renal trauma (AAST grades III-V) presents significant management challenges.
• Angioembolization is a primary treatment modality for severe renal injuries.
• Predicting angioembolization success is crucial for patient outcomes.

Purpose of the Study:

• To identify clinical and radiographic predictors of angioembolization failure in patients with high-grade renal trauma.

Main Methods:

• Retrospective analysis of patients from the Multi-institutional Genito-Urinary Trauma Study.
• Inclusion criteria: initial renal angioembolization for high-grade renal trauma (AAST III-V).
• Failure defined as repeat angiography or exploratory laparotomy post-embolization.

Main Results:

• Angioembolization failed in 18 of 67 patients (27%).
• Failed cases showed a higher proportion of Grade IV (72% vs 53%) and Grade V (22% vs 12%) injuries.
• Larger perirenal hematoma size on initial scans was associated with angioembolization failure.

Conclusions:

• Angioembolization failure rate for high-grade renal trauma is 27%.
• Factors associated with failure include higher injury grade and larger perirenal hematomas.
• These findings suggest certain injury characteristics may predict reduced success rates for single-session angioembolization.