Effect of sildenafil citrate on post-radical prostatectomy erectile dysfunction

Area of Science:

• Urology
• Pharmacology
• Sexual Medicine

Background:

• Erectile dysfunction (ED) is a common complication following radical prostatectomy.
• Sildenafil is a phosphodiesterase type 5 inhibitor used to treat ED.
• The impact of nerve preservation techniques on sildenafil efficacy in post-prostatectomy ED is not fully elucidated.

Purpose of the Study:

• To evaluate the effectiveness of sildenafil in patients with ED post-prostatectomy.
• To determine if nerve preservation during prostatectomy influences the response to sildenafil.

Main Methods:

• A survey of 53 patients who underwent radical retropubic prostatectomy and received sildenafil.
• Patients were categorized based on nerve sparing procedures: bilateral (21), unilateral (15), or non-nerve sparing (17).
• Efficacy and satisfaction were assessed using a modified International Index of Erectile Function questionnaire.

Main Results:

• Positive response to sildenafil was observed in 15/21 (71%) with bilateral nerve sparing, 12/15 (80%) with unilateral nerve sparing, and 1/17 (6%) with non-nerve sparing procedures.
• Headaches, flushing, and visual disturbances were the most frequent side effects.
• Partner satisfaction with sildenafil treatment was also assessed.

Conclusions:

• Sildenafil is effective for treating erectile dysfunction after both unilateral and bilateral nerve-sparing prostatectomy.
• Response to sildenafil is significantly lower in patients who underwent non-nerve sparing prostatectomy.
• Nerve preservation appears crucial for optimal sildenafil response in post-prostatectomy ED.