Clinical outcomes after emergency transarterial renal embolization: a retrospective study

Area of Science:

• Interventional Radiology
• Vascular Surgery
• Nephrology

Background:

• Emergency transarterial embolization (TAE) for renal arterial injuries is infrequently studied.
• Evaluating clinical outcomes of emergency TAE for renal arterial injuries is crucial.

Purpose of the Study:

• To assess the clinical outcomes of emergency transarterial embolization (TAE) in patients with renal arterial injuries.
• To determine the safety and efficacy of TAE as an emergency treatment for kidney bleeding.

Main Methods:

• Retrospective review of 79 consecutive patients undergoing emergency TAE for renal arterial injuries between 2013 and 2024.
• Inclusion criteria: patients aged 18+ with renal vascular injury treated by emergency TAE.
• Clinical success defined as bleeding resolution without repeat TAE, surgery, or death from hemorrhage, preserving kidney function.

Main Results:

• The median age of patients was 60 years; common injuries included blunt trauma and renal biopsy.
• Pseudoaneurysms (45.6%) and active bleeding (65.8%) were frequently detected pre-procedure.
• Clinical success was achieved in 93.7% of procedures, with only 3.8% requiring repeat embolization. No severe adverse events were reported.

Conclusions:

• Emergency transarterial renal embolization (TAE) offers high clinical success rates.
• The procedure is associated with low complication and rebleeding rates.
• TAE is a safe and effective emergency intervention for managing renal arterial injuries.