|Non-ischemic (high-flow)||Ischemic (low-flow)|
|Physical Exam||Typically painless, not fully tumescent||Painful, fully tumescent with corpus cavernosa rigidity without involvement of corpus spongiosum and glans penis|
|Aetiology||High-flow priapism is extremely rare and most commonly associated with antecedent trauma including blunt trauma, or resulting from needle injury of the cavernosal artery.||Low-flow priapism is caused by impaired relaxation and/or paralysis of cavernosal smooth muscle and in sickle-cell disease|
Once we’ve achieved ROSC our job is not over. Good post-arrest care involves maintaining blood pressure and cerebral perfusion, adequate sedation, cooling and preventing hyperthermia, considering antiarrhythmic medications, optimization of tissue oxygen delivery while avoiding hyperoxia, getting patients to PCI who need it, and looking for and treating the underlying cause.