Abstract
Objectives: To highlight the efficacy of various psychological interventions (PI) when used in combination with, or in place of, phosphodiesterase-5 inhibitors (PDE-5i), as compared to the traditional treatment of men with erectile dysfunction (ED) with PDE-5i alone. Methods: A comprehensive literature review for the years 2005-2020 via MEDLINE and PubMed. We included randomised controlled trials that compared the use of either PDE-5i alone, PI alone or a combination of PDE-5i and PI in the treatment of psychogenic ED. All studies included were performed in adults aged 19-55 years and were written in English. Results: A total of 13 articles, with an overall sample of 597 men, were included in this systematic review. The results show that the combination of PI and PDE-5i was more effective than either PI or PDE-5i alone, on erectile function and long-term sexual satisfaction in men with psychogenic ED. Combined interventions were found to be significantly superior to medical treatment in seven studies and to PI alone in one study. In comparing PI to PDE-5i, two studies found PI to be significantly superior to PDE-5i use. In three other studies, PI was found significantly superior to no treatment at all, although some participants in the control group had taken PDE-5i. Conclusions: The combination of PDE-5i with PI shows real promise for the treatment of psychogenic ED. However, no conclusions could be made about what PI is more promising than the other and larger studies are needed to confirm these initial findings. Abbreviations: CBT: cognitive behavioural therapy; CBST: cognitive behavioural sex therapy; COVID-19: coronavirus disease 2019; ED: erectile dysfunction; EDITS: Erectile Dysfunction Inventory of Treatment Satisfaction; GPT, group psychotherapy: IIEF(-EF) (-OS) (-SD): International Index of Erectile Function (erectile functioning) (overall sexual satisfaction) (level of sexual desire); ITP: integrative treatment protocol; MHI: Mental Health Inventory; PDE-5i: phosphodiesterase-5 inhibitors; PI, psychological interventions; QoL: quality of life; RCT: randomised controlled trial; SHIM: Sexual Health Inventory for Men.