Related Experiment Video
Updated: Jun 28, 2026

A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application
Published on: July 9, 2020
[Case report of post-traumatic arterial high-flow priapism]
Eiki Hanada1, Susumu Kageyama, Mitsuhiro Narita
1Department of Urology and Radiology, Shiga University of Medical Science.
Abstract:
Priapism is rare and usually unpredictable. High-flow priapism is caused by unregulated arterial inflow. Antecedent trauma is the most commonly described etiology. This condition does not require emergent treatment. The initial management of high-flow priapism should be observation, because treatment-related erectile dysfunction may appear. We report a case of high-flow priapism by perineal trauma in a 27-year-old man. His corpora were typically tumescent, but not completely rigid. He could not have sexual intercourse. Blood from the corpus cavernosum was normally oxygenated. Color duplex ultrasonography was performed in the lithotomy position, scanned at the perineum, showed pseudoaneurysmal appearance. Selective internal pudendal arteriography showed a right cavernous arterial extravasation. Superselective embolization of right internal pudendal arteries was performed with an autologous clot. After the procedure, detumescence was achieved as well as erectile function. We recommend superselective arterial embolization as the management of high flow priapism to patients who request treatment.
Related Concept Videos
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Peripheral Artery Disease V: Postoperative Nursing Management
Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists
These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Peripheral Artery Disease III: Interprofessional Care
Peripheral Artery Disease I: Introduction
