Fig. 2From: To the editor-an update on endovascular treatment of venogenic erectile dysfunctionAfter subcutaneous administration of lidocaine 2% for local anesthesia and light sedation, ultrasound-guided puncture of a deep dorsal penile vein is performed using a 21-G micropuncture needle (Cook, U.S.A.). The needle is slowly advanced until blood returns from the needle hub (ref. corresponding movie file)Back to article page