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J Sex Marital Ther. 2005 May-Jun;31(3):243-55.

Psychogenic erectile dysfunction: comparative study of three therapeutic approaches.

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Sexuality Project, Institute of Psychiatry of the Medical School of the University of São Paulo, São Paulo, Brazil.


We administered the International Index of Erectile Function (IIEF; Rosen et al., 1997) questionnaire to 30 patients with psychogenic erectile dysfunction (ED) at baseline, immediately after treatment, and 3 months after treatment. We randomized patients into three groups: group I, who had weekly sessions of time-limited theme-based group psychotherapy for 6 months and 50 mg sildenafil citrate orally on demand; group II, who had an intake of 50 mg sildenafil citrate orally on demand for 6 months only; and group III, who had weekly sessions of time-limited theme-based group psychotherapy for 6 months. We analyzed data (15-item IIEF) for each group at three times during the study and compared by the data using analysis of variance (ANOVA), followed by the Bonferroni multiple comparison test. We used Cochran's Q-test for analysis between baseline and posttreatment stages of patients with remission of symptoms (EF equal to or higher than 26 points). Group III had a mean score higher than group II, with the difference being statistically significant (immediately after treatment, p = 0.033; at 3 months after treatment, p = 0.049; p < 0.05). All three therapeutic alternatives resulted in an improvement of erectile function domain score. However, significant differences from baseline were observed in groups I (p = 0.0009) and III (p = 0.0002) but not in group II (p = 0.135). The psychotherapy groups, I and III, had significantly higher scores compared with group II, in which patients were exclusively treated with sildenafil citrate. These findings suggest that time-limited theme-based group psychotherapy is an effective treatment for psychogenic ED.

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