Abstract
Objective: To evaluate the effect of sildenafil on the sperm parameters of subfertile men who attended the fertility service of the Maternidad Concepción Palacios, between June 2011 and December 2013. Methods: A clinical, prospective, descriptive, experimental, cross-sectional study was conducted, prior informed consent, in 28 subfertile men with diagnosed asthenozoospermia, by performing two basal spermogram. Thereafter, they were given 50 mg of sildenafil, one hour before obtaining the sample, for a third and final spermogram. Results: Among the 28 patients studied, it was shown an increased progressive motility post-treatment in 21 patients (75%) which was statistically significant (p-0.000); the volume ejaculated before and after treatment had no statistically significant differences (p-0.405), as well as sperm concentration (p-1,000). Conclusions: The use of sildenafil in patients with diagnosed asthenozoospermia represents an economical therapeutic option, easy to acquire, and comply with in the treatment of this pathology. Keywords: Asthenozoospermia, Sildenafil, Semen.
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