391 Revision Inflatable Penile Prosthesis (IPP) Failure Rates and Risk Factors for Failure

Abstract

Numerous prior studies have documented follow up on the success and failure rates of inflatable penile prosthesis (IPP) surgery for patients with erectile dysfunction. There is limited data in the literature regarding the success rates of IPP in the revision surgery patient population. To determine the revision IPP failure rate and also determine if there are any factors that can help predict which patients undergoing revision surgery are at a higher risk for failure. We included patients who underwent revision IPP surgery by a single surgeon between the years of 2008 and 2016. All patients had a minimum of 3 year follow up. A revision IPP surgery was defined as an IPP implantation for any patient who had a prior penile prosthesis, regardless of whether it was a concomitant explant and implant or explant with a re-implant at a later date. In this initial exploratory analysis, our primary outcome measure was revision failure and the reason for failure. We additionally collected information on the time from most recent penile implant to revision surgery, etiology of revision, and whether the patient had a prior failed revision surgery. We explored the association of risk factors with revision failure using Fisher’s exact test for categorical variables and the exact Wilcoxon test for numeric variables.