(347) Prediction of Post-operative Sexual Satisfaction after Penile Prosthesis Implantation (With and Without Penile Lengthening Procedures) Using Preoperative Penile Length Measurements

Abstract

Abstract Introduction `- Penile prosthetic devices are the gold standard treatment of medication-resistant erectile dysfunction, however penile length reduction was reported as one of the main post operative disturbing complaints - Many lengthening procedures during penile prosthesis implantation (PPI) were described to increase postoperative sexual satisfaction. Objective `- To predict post-operative sexual satisfaction after PPI (with or without penile lengthening procedure) using preoperative penile length measurements. Methods `- This study was conducted in our urology department as prospective RCT, in the period between August 2018 till April 2020 - It included 61 male patients with organic ED who are candidates for PPI. - Patients were randomized to 2 groups; group A included 31 patients who underwent suspensory ligament release via penopubic Z-plasty, dorsal phalloplasty, suprapubic lipectomy, +/− ventral phalloplasty (in case of high scrotal insertion); group B included control patients who underwent PPI only via penoscrotal incision. - Measurement of preoperative and postoperative (after 3 months) penile lengths were done, including; the flaccid, visible stretched and functional stretched penile lengths. - Assessment of patients’ sexual satisfaction was done using the Erectile Dysfunction Inventory of Treatment Satisfaction (EDITS) score adapted to penile prosthetic implant. - Patients with EDITS scores of 60-80 were considered satisfied, and those with EDITS scores of 80-100 were considered very satisfied. - Receiver operating curve (ROC) analysis was done to detect cutoff value for the preoperative stretched penile lengths (functional & visible) that are predicted to aid the patient to reach a postoperative satisfaction of EDITS ≥90 in each group. Results `- The mean preoperative measurements showed no statistically significant difference between the two groups. - However, the mean postoperative measurements after 3 months demonstrated a statistically significant difference between the two groups. - The mean values of both overall EDITS and the EDITS resting state and malleability scores were higher in group A (91.92 ± 7.22 and 7.38 ± 0.78) Vs. (79.55 ± 15.55 and 5.32 ± 1.12) in group B (p < 0.001) - For EDITS satisfaction level, the percentage of the very satisfied patients [≥ 80] in group A (89.7%) was significantly higher than in group B (64.3%) (p= 0.045) - Also, for the EDITS resting state and malleability satisfaction level, the percentage of the very satisfied patients in group A (55.2%) was significantly higher than in group B (0.0%) (p < 0.001) - ROC curve was done for both groups In group A: - Functional stretched penile length: AUC 0.815 with a cutoff value of 12.75 cm yielding a 81.8% sensitivity and 71.4% specificity (p value = 0.013) - Visible stretched penile length: AUC 0.795 with a cutoff value of 10.75 cm yielding a 81.8% sensitivity and 71.4% specificity (p value =0.020) In group B: - Functional stretched penile length: AUC 0.927 with a cutoff value of 14.50 cm yielding a 77.8% sensitivity and 94.7% specificity (p value < 0.001) - Visible stretched penile length: AUC 0.892 with a cutoff value of 12.50 cm yielding a 66.7% sensitivity and 94.7% specificity (p value <0.001). Conclusions `- Preoperative measurement of functional and visible penile lengths can be of value in predicting post-operative sexual satisfaction after PPI (with or without concurrent penile lengthening procedures). Disclosure No