Login to Access Video or Poster Abstract: MP56-20
Sources of Funding: none

Introduction

Peyronie's disease is an inflammatory condition involving the tunica albuginea causing penile deformity resulting and sexual dysfunction. Clinical assessment of Peyronie’s disease requires an erection. Generating a patient erection in clinic is time-consuming, costly and invasive. We previously demonstrated that a smartphone application, the University of Washington Peyronie's Examination Network (UWPEN) application was correlated with measurements obtained from a goniometer using penile models. In this study, we aimed to demonstrate that UWPEN measurements are equivalent when performed by a patient and clinician.

Methods

We underwent an IRB approved prospective evaluation comparing clinician and patient measurements utilizing the UWPEN application for measurement of penile angulation. Patients presenting to the University of Washington with Peyronie's disease and clinical indication for duplex ultrasound were consented and given an intracavernosal injection of Alprostadil. A clinician took measurements using a goniometer and tape measure as a gold standard. Follow-up measurements were obtained using the UWPEN application. The clinician left the room while the patient took UWPEN application measurements. We compared measurements between the goniometer, clinician, and patient using an ANOVA test in the statistics package R. As a secondary outcome, we also evaluated survey results from patients regarding their experience with using the application._x000D_

Results

There was no significant difference in measurements between goniometer, clinician, and patient measurements of the penis while erect; for dorsal measurements (p = 0.78), lateral measurements (p = 0.20) and girth (p = 0.99). We observed some variability in lateral measurements early in our experience. Overall, patients felt positive about using the application and were interested in home use to evaluate their progress with treatment.

Conclusions

Artificial elections to assess the degree and direction of penile angulation in clinic is time-consuming, costly and invasive. The UWPEN application may help make standardized measurements at home. There is a large degree of consistency between clinician and patient measurements. The majority of patients felt comfortable using the application.

Funding

none