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Priapism refers to the nonwillful persistence of penile erection in the absence of sexual excitation, and thus it constitutes a true sexual dysfunction. At present, the precise pathophysiologic basis for the disorder remains largely misunderstood, particularly with respect to its recurrent or...
Although using phosphodiesterase type 5 inhibitors to treat erectile dysfunction has been highly effective in clinical trials, many men do not achieve their desired goals and stop using the medication after a few attempts. The notion of optimizing response to pharmacologic interventions is...
Female sexual arousal results from a complex series of psychological, neurologic, and cardiovascular events. Various sexual stimulations lead to central nervous system activation, resulting in engorgement of genital structure and vaginal lubrication. Functional MRI (fMRI) technique can clarify...
Hemospermia is a common problem that primarily affects young healthy men. In rare cases, this symptom may be a harbinger of a serious medical problem, so a thorough history and physical examination is always warranted. The physician must reassure the patient and rule out the more common serious...
The identification of nitric oxide as the neurotransmitter involved in penile erection led to the introduction of phosphodiesterase type 5 inhibitors, which revolutionized the evaluation and management of erectile dysfunction. However, recent studies have indicated that erection is not simply a...
Researchers have long searched for an effective surgical therapy for impotence throughout recorded history. Early attempts at surgical therapy involved various rigid devices to supplement the natural erection process. Medicine has since turned to prosthetic implants. The designs of penile...
Infertility is common and associated with distress, anxiety, and depression, all of which can result in sexual dysfunction. This stress-related erectile dysfunction can be effectively treated with oral phosphodiesterase type 5 inhibitors. A review of the current literature suggests that...
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