Author + information
- Chi-Fai Ng, MD∗ (, )
- Samuel C.H. Yee, MBBS and
- Peter K.F. Chiu, MBChB, MRCS
- ↵∗Division of Urology, Department of Surgery, 4/F Prince of Wales Hospital, Satin, Hong Kong, SAR China
We read the paper by Rogers et al. (1) with great interest as it may open up a potential new therapeutic approach for patients experiencing erectile dysfunction. However, we would like to have further clarifications about the data/results from the authors before we fully appreciate the beneficial role of the procedure.
The International Index of Erectile Function (IIEF) is one of the standard tools of urologists for the assessment of erectile function (2). The 15 questions covered 5 domains related to sexual function: erectile function (EF), orgasmic function, sexual desire, intercourse satisfaction, and overall satisfaction. Among these, the EF domain is the main area assessed in studies related to the treatment response of therapy for erectile dysfunction (2–4). Although the primary feasibility endpoint of this study was set as an increase of 4 points in the IIEF-6/IIEF-EF domain, the presentation of the results appeared less clear. In the Results section, including Table 3 (1), only IIEF, but not IIEF-6, was mentioned. Moreover, in Figure 4 (1), only the changes in total IIEF score were shown, but not the IIEF-6 (EF domain score). Therefore, we were uncertain whether the 59.3% improvement of >4 points was IIEF (total) or IIEF-6 (EF domain). Moreover, the usual practice of presenting the results of treatment for erectile dysfunction is to provide the pre- and post-treatment IIEF-EF domain scores for easier reference (3,4). Unfortunately, this essential information was not shown in the article. The only information that we could obtain was the pre- and post-treatment total IIEF score provided in Figure 4 (1). Because the mean improvement in total IIEF score was only ∼12 points, we were not certain about the exact contribution of the EF domain alone. Therefore, we would greatly appreciate if the authors could provide further clarification of the results (pre- and post-treatment IIEF-6/EF score). This would help readers to better assess the potential role of this novel therapy.
- American College of Cardiology Foundation