Factors Associated With Initial Failure in Ultrasound‐Guided Percutaneous Thrombin Injection for Iatrogenic Femoral Pseudoaneurysms

Aneurysm neck length and anticoagulant use were identified as factors influencing the effectiveness of initial ultrasound-guided percutaneous thrombin injection for iatrogenic FPA. For patients experiencing treatment failure, additional thrombin injections yielded satisfactory outcomes; surgical repair can even be avoided. Ultrasound-guided percutaneous thrombin injection is proposed as a safe, minimally invasive, and effective treatment option for iatrogenic pseudoaneurysm, valued for its simplicity and repeatability.