Sexual function recovery following open and robotic radical prostatectomy: results of an academic penile rehabilitation program.

Abstract

Despite surgical advancements, erectile dysfunction (ED) is a common consequence of radical prostatectomy (RP). This study aimed to evaluate the impact of early penile rehabilitation within a dedicated penile rehabilitation program on assisted and unassisted erectile function (EF) recovery. All patients who underwent RP and at least 1 year follow-up at penile rehabilitation program in the Department of Urology, OORR Policlinico Riuniti (Foggia, Italy) were included. Treatment involved phosphodiesterase type 5 inhibitors (PDE5Is; tadalafil 20 mg, 1 tablet every other day), intracavernous injections (Caverject 5 µg, 1 vial per week), and daily use of vacuum erection devices (VEDs). Primary end point was EF recovery defined as International Index of Erectile Function-5 (IIEF-5) ≥21 with or without rehabilitation aids. IIEF-5 and prescribed treatments were prospectively collected at 3 months, 6 months, 9 months, 12 months, and 24 months. Among 570 eligible patients, 397 (69.6%) underwent rehabilitation. Patients who undergoing andro-rehabilitation were younger (65 months v s 70 months; P < 0.0001), had lower prostate-specific antigen (PSA) levels (5.9 ng ml -1vs 6.2 ng ml -1 ; P = 0.04), and lower grade tumors ( P = 0.001) compared to the patients who did not undergo sexual rehabilitation after radical prostatectomy. Two-year EF recovery rates in patients undergoing andro-rehabilitation ranged from 75% (preoperative IIEF-5 >16) to 45% (preoperative IIEF-5 <16) with rehabilitation aids. Combination treatments (PDE5I+VEDs with or without intracavernous injections) showed the highest rates of EF recovery (up to 80% at 2 years). EF recovery without rehabilitation aids was significantly higher for patients with IIEF-5 >21 (IIEF-5 >21 [36%] vs IIEF-5 of 17-21 [18%]; P = 0.01). Subanalysis indicated a moderate benefit of rehabilitation in patients with preoperative IIEF-5 <16 who underwent bilateral nerve-sparing RP. Participation in intensive penile rehabilitation programs improves EF recovery in patients undergoing RP. Preserving the neurovascular bundles may be beneficial for patients with preoperative ED.