Is the daily use of vacuum erection device for a month before penile prosthesis implantation beneficial? a randomized controlled trial

Abstract

Patient concerns about penile length after penile prosthesis (PP) implantation for erectile dysfunction (ED) have significant impact on patients and their partners. In addition, corporal fibrosis is associated with difficult PP implantation. The preoperative use of vacuum erectile devices (VED) is an uncommon physical treatment for such concerns. Therefore, the current randomized controlled study assessed two outcomes: whether pre-operative VED use for a month before surgery would significantly increase flaccid stretched penile length (SPL) on the day of surgery, and facilitate easier corporal dilatation intraoperatively. Fifty-one patients scheduled for PP implantation for ED were randomized to either intervention group (pre-operative VED use; 10-15min/day for ≥30days; Group A; n=25), or control group (no intervention; Group B; n=26). A research assistant (blinded to the treatment assignments) recorded SPL at baseline (initial consultation) and on day of surgery. The surgeons performing the PP implantation (also blinded to the treatment assignments) provided subjective assessments of the ease of corporal dilatation. Baseline patient characteristics, demographics, and comorbidities were the same in both groups. Baseline measurements (SPL-1) were 10.71±1.28 and 10.87±1.26cm in Group A and Group B, respectively; and the day of surgery measurements (SPL-2) were 11.50±1.33 and 11.06±1.34cm in Group A and Group B, respectively. In terms of outcomes: mean SPL increase in Group A was significantly more by a mean of 0.80±0.38cm (p<0.05) compared to Group B; and surgeons' subjective report of surgical ease indicated smoother corporal dilatation for Group A compared to Group B. VED use (10-15min/day during the month prior to PP implantation) was associated with significantly increased SPL on day of surgery, and facilitated easier corporal dilatation intraoperatively. Future studies should examine the long-term outcomes of penile prosthesis implantation after pre-operative use of vacuum erectile devices.