Therapeutic effect of sildenafil on idiopathic erectile dysfunction / 中华泌尿外科杂志

ABSTRACT

Objective To evaluate the therapeutic effect,as well as the safety,of on-demand sildenafil on men with idiopathic ED.Methods One hundred and four men who met the diagnosis criteria of idiopathic ED were recruited into 2 groups.Among them,46 men who refused or were reluctant to take pharmacotherapy were recruited into the clinical control group with instruction of sexual knowledge and skills.Fifty-eight men who were involved in the on-demand group,were administrated sildenafil 50 mg just 1h before the coitus at thebeginning,then,if needed adjusted the dosage according to the effect and tolerance of the first four administration.The questionnaire of IIEF-5 was completed at the baseline and the end point,and the clinic total effective rate,the fully recovery rate of ED and the adverse events were also evaluated at the end of administration.Both groups were treated for 3 months.The therapeutic effect was reevaluated 1 month and 3 months later,respectively.Results After 3 months treatment,scores of IIEF-5 at the baseline and the end point for control group and on-demand group were as follow5.2 and 12.6,4.2 and 19.8 ;and the fully recovery rate of ED for each group were as follow12 (26.1％),56 (96.6％) ; the total effective rate for each group were 27.7％,97.2％ ; 1 month and 3 months after the end point,the fully recovery rate of ED and the total effective rate were evaluated separately,for 1 month8 (17.4％),56(96.6％) and 19.4％,97.1％; for 3 months7 (15.2％),55 (94.8％) and 16.4％,96.4％.The side effects in on-demand group (16,27.6％) was little higher than the control group (5,10.9％) (P ＞0.05).Most of the side effects were not only subtle and transient but also would vanish with the time.Accordingly,no one discontinued because of side effects.Conclusions Treatment of idiopathic ED with sildenafil was effective and safe.In terms of the fully recovery rate,total effective rate and effect maintenance,the on-demand group at the end point,even 1 month and 3 months after the end point,showed a great advantage over the control group.