The patient related features analyses showed no statistically significant differences between the 2 groups, surgery without and with Dex Device™: age: 66,3 y vs 67,8 y, height: 172 cm vs 173 cm, weight: 80,4 kg vs 80,4 kg, prostate volume: 39,6 cc vs 46,6 cc and initial PSA: 10,25 ng/ml vs 15,15 ng/ml. The difference in operation time between the two groups was not statistically different (138 min vs 161 min, F = 3,34, p = 0,084) and the same was seen in length of hospital stay (3,1 days vs 2,7 days) and drainage duration (2,1 days vs 2,6 days). One-way ANOVA analysis of catheter duration showed a favourable result toward Dex Device™ utilisation (13,5 days vs 9,3 days, F = 10,3, p < 0,005). There were identified 2 Clavien-Dindo grade 3 complications in the former group (vesico-urethral anastomosis stenosis) and 2 Clavien-Dindo grade 2, one in each group (vesical urgency). The positive surgical margins (PSM) analyse showed a tendency to positive margins in our study group, although not statistically significant (p = 0,057). There’s also a tendency to higher Gleason scores and initial PSA that could explain this tendency. All patients were pad free at 3 months and 90% after the first month.