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Also known as
Intracavernous injection, Intracavernosal injection (ICI), Vasoactive intracavernous pharmacotherapy.
Definition
Vasoactive intracavernous pharmacotherapy involves the direct injection of vasoactive drugs into the corpora cavernosa of the penis. This method is primarily used for the diagnosis and treatment of erectile dysfunction (ED) [1]. The drugs work by relaxing the smooth muscles within the penile arteries and trabecular sinusoids, leading to increased blood flow into the penis and subsequent erection [2]. This approach is considered effective due to its direct action on the erectile tissue, bypassing systemic effects that might be associated with oral medications. The technique requires careful patient selection and instruction on proper injection procedures to minimize complications [1].
Clinical Context
Vasoactive injection therapy is primarily utilized in the clinical management of erectile dysfunction (ED), serving both diagnostic and therapeutic purposes [3]. It is often considered for patients who do not respond to oral medications or for whom oral medications are contraindicated [4]. Relevant medical conditions include various etiologies of ED, such as vasculogenic, neurogenic, psychogenic, or mixed causes [3]. Patient selection criteria emphasize careful evaluation, as the therapy is suitable for a broad range of patients, including those with underlying conditions like diabetes [4].
The procedure involves the patient self-administering the injection directly into the corpus cavernosum of the penis. This allows for a localized effect, leading to an erection within minutes [1]. While not a surgical procedure, proper training and technique are crucial to ensure safety and efficacy. Expected outcomes include a high success rate in achieving satisfactory erections for sexual activity, with studies reporting restoration of sexual function in a significant percentage of patients [3]. The therapy can also be used diagnostically to assess vascular integrity and differentiate between types of ED [5].