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Early postoperative administration of alprostadil injections significantly increases the recovery rate of spontaneous erections after nerve-sparing radical retropubic prostatectomy. It is our belief that programmed vasoactive injections improve cavernous oxygenation, thereby limiting the development of hypoxia-induced tissue damage. The potential complications related to the use of intracavernous injections must be clearly explained to patients.

ED prevalence differs across subsets of patients with CAD and is related to coronary clinical presentation and extent of CAD. In patients with established CAD, ED comes before CAD in the majority by an average of 2 up to 3 years.