Implantation of penile prosthesis remains an important option for men with ED if medical treatment fails or is inappropriate. Prostheses are available as a saline-filled silicone device or a malleable device. The benefit of the former is a more natural appearance in the deflated state, closely approximating the appearance of a flaccid penis. The trade-off is a higher mechanical failure rate and higher cost. Satisfaction rates for patients who underwent penile prosthesis surgery have been reported to be near 90%.36 However, in the majority of patients who receive this treatment, less invasive alternatives have failed and therefore satisfaction with this treatment would be expected to be higher in this subset of patients. Risks of these devices include surgical and anesthetic risk, device infection, and device malfunction. Mechanical failure rates depend on the specific device being investigated. Overall, the percentage of devices that are free from mechanical failure at 5 years ranges from 84% to 94%.19 Infection rates in the era of coated devices and improved techniques are reported to be less than 1%.37
Metabolism (breakdown) of vardenafil can be slowed by aging, liver disease, and concurrent use of certain medications (such as erythromycin [an antibiotic], ketoconazole [Nizoral, a medication for fungal/yeast infections], and protease inhibitors [medications used to treat AIDS]). Slowed breakdown allows vardenafil to accumulate in the body and potentially increase the risk for side effects. Therefore, in men over 65 years of age with liver disease, or who are also taking medication(s) that can slow the breakdown of vardenafil, the doctor will initiate vardenafil at low doses to avoid its accumulation. For example,
Erectile dysfunction is the inability to develop or maintain an erection that is rigid enough to allow penetration of the vagina, and therefore functional sexual intercourse. Generally, the term erectile dysfunction is applied if this occurs frequently (75% of the time) over a significant period if time (several weeks to months). If this is the case, the term impotence may also be used.
Knowing about your history of ED will help your health provider learn if your problems are because of your desire for sex, erection function, ejaculation, or orgasm (climax). Some of these questions may seem private or even embarrassing. However, be assured that your doctor is a professional and your honest answers will help find the cause and best treatment for you.