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Retzius-Sparing Robot-Assisted Radical Prostatectomy
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Improved patient-reported functional outcomes after nerve-sparing radical prostatectomy by using NeuroSAFE technique
Sophie D Fosså1, Burkhard Beyer2, Alv A Dahl3
1Department of Oncology, Medical Faculty, Oslo University Hospital and University of Oslo, Oslo, Norway.
Scandinavian Journal of Urology
|December 5, 2019
Summary
Intra-operative frozen section examination (NeuroSAFE) during nerve-sparing radical prostatectomies (NS-RPs) significantly improved post-operative erectile function. While NeuroSAFE did not enhance urinary control, it is recommended for preserving sexual function in NS-RP patients.
Area of Science:
- Urology
- Oncology
- Surgical Innovation
Background:
- Nerve-sparing radical prostatectomy (NS-RP) aims to preserve post-operative erectile function and urinary control.
- Intra-operative frozen section examination (NeuroSAFE) is a technique used during NS-RP.
- The impact of NeuroSAFE on functional outcomes following NS-RP requires further investigation.
Purpose of the Study:
- To evaluate the effect of NeuroSAFE application during NS-RP on post-operative erectile function.
- To assess the influence of NeuroSAFE on urinary control after NS-RP.
- To compare functional outcomes between men undergoing NS-RP with and without NeuroSAFE.
Main Methods:
- A comparative study analyzing pre- and post-operative sexual function and urinary incontinence using EPIC-26.
- Two patient cohorts were analyzed: 95 men from the NeuroSAFE Group (Martini-Klinik) and 312 from the Non-NeuroSAFE Group (Oslo University Hospital).
- Patients underwent NS-RP for ≤cT2 prostate cancer with intra-prostatic tumors, with statistical significance set at p < 0.05.
Main Results:
- The NeuroSAFE Group demonstrated significantly better sexual outcomes compared to the Non-NeuroSAFE Group (p < 0.01).
- In pre-operatively potent men, erectile function was preserved in 74% of the NeuroSAFE Group versus 46% in the Non-NeuroSAFE Group (p < 0.01).
- NeuroSAFE showed limited superior effect on urinary continence; age and pre-operative sexual function were significant co-variables.
Conclusions:
- The application of NeuroSAFE during NS-RP contributes to the preservation of post-operative erectile function.
- The study suggests NeuroSAFE should be considered in NS-RP procedures to maximize sexual function preservation.
- Further confirmation in randomized controlled trials is recommended to validate these findings.

