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Updated: Jun 24, 2025

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Retzius-Sparing Robot-Assisted Radical Prostatectomy
Published on: May 19, 2022
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Case report: Fluorescence-guided laparotomic radical prostatectomy with heightened nerve visualization.
Roberto Degiovanni1, Gerardo Zabala1, Diego Degiovanni1
1Hospital Privado de Rosario, Rosario, Argentina.
International Journal of Surgery Case Reports
|June 13, 2024
Summary
A novel fluorescence imaging system helps surgeons visualize the cavernous nerve during radical prostatectomy, potentially preventing erectile dysfunction and other nerve injuries. This technology aids in preserving nerve function after prostate cancer surgery.
Area of Science:
- Urology
- Surgical Technology
- Nerve Sparing Surgery
Background:
- Radical prostatectomy can lead to iatrogenic injury of the cavernous nerve, resulting in erectile dysfunction in up to 85% of patients.
- Preserving the cavernous nerve is crucial for maintaining post-operative sexual function.
Observation:
- A novel fluorescence-imaging system utilizing near-ultraviolet light (NUVL) was employed during a radical prostatectomy.
- The system enhanced the visualization of the periprostatic nerve plexus, including the cavernous nerve and its branches, through autofluorescence.
- Under NUVL, nerves fluoresced brightly, allowing for clear identification and avoidance during surgery.
Findings:
- The fluorescence imaging system facilitated clear visualization of the cavernous nerve and its branches, which were not visible under standard white light.
- The surgical team successfully avoided nerve injury during the prostatectomy.
- The patient experienced no intra-operative or post-operative complications, including erectile dysfunction or voiding difficulties, at one-month follow-up.
Implications:
- Intra-operative nerve autofluorescence may be a valuable tool for reducing iatrogenic nerve injury during radical prostatectomies.
- This technology holds promise for improving functional outcomes, such as preventing erectile dysfunction, after prostate surgery.
- Further research with larger patient cohorts and comparative trials is warranted to validate the effectiveness of this novel imaging technique.

