Related Experiment Video
Updated: Jul 17, 2026
Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
Published on: May 30, 2025
Assessment of postbrachytherapy sexual function: a comparison of the IIEF-5 and the MSEFS
Timothy M Zagar1, Richard G Stock, Jamie A Cesaretti
1Department of Radiation Oncology, Mount Sinai School of Medicine, New York, NY, USA.
Purpose:
This study is to compare the Mount Sinai Erectile Function Score (MSEFS), our brachytherapy program's physician-assigned scale, with patients' independently completed International Index of Erectile Function-5 (IIEF-5).
Methods And Materials:
A total of 1202 patients with T1-T3 prostate cancer were treated with ultrasound-guided radioactive seed implantation +/- EBRT with at least one visit where both MSEFS and IIEF-5 were completed. Spearman rho correlations were performed.
Results:
The MSEFS significantly correlated with the total IIEF-5 scores on all comparisons. The coefficient was 0.65 for comparisons at initial consultation and 0.76 for all visits. The correlations remained strong, averaging to 0.76 for visits 1 through 10.
Conclusions:
In assessing erectile dysfunction after radiation, the MSEFS correlates well with, but cannot be replaced by, the IIEF-5, which is weighted toward one's degree of sexual desire. More insight into patients' erectile function after brachytherapy may be gotten if the IIEF-15 is used instead of the IIEF-5 with our MSEFS.
