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Low-Dose Thrombin Injection to Treat Iatrogenic Femoral Artery Pseudoaneurysms

Scott B. Reeder1, David M. Widlus2 and Maxwell Lazinger2

1 Department of Radiology, Stanford University, 300 Pasteur Ave., Stanford, CA 94305.
2 Department of Radiology, Sinai Hospital, 2401 Belvedere Ave., Baltimore, MD 21215.



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  		Fig. 1. —Schematic of pseudoaneurysm arising from superficial femoral artery. Double-headed arrow indicates biphasic flow through neck of pseudoaneurysm during systole and diastole. Thrombin is injected through 25-gauge needle while flow pattern is monitored with sonographic probe.

 


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  		Fig. 2A. —Pseudoaneurysm (PSA) in 72-year-old woman. Color-flow Doppler sonography before injection of thrombin shows neck of pseudoaneurysm is 5 mm, and flow jet is easily seen.

 


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  		Fig. 2B. —Pseudoaneurysm (PSA) in 72-year-old woman. Color-flow Doppler sonography before injection of thrombin shows neck of pseudoaneurysm is 5 mm, and flow jet is easily seen.

 


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  		Fig. 2C. —Pseudoaneurysm (PSA) in 72-year-old woman. Color-flow Doppler sonography after injection shows complete cessation of flow in pseudoaneurysm occurring immediately after thrombin injection.

 

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