Monitoring and Mapping of Erectile Nerve During RALP (MMEN Study)

Safety and Efficacy of Pelvic Autonomic Nerve Monitoring and Mapping During Robot Assisted Laparoscopic Radical Prostatectomy for Preservation of Erectile Function

To evaluate the safety and efficacy of pelvic autonomic nerve monitoring and mapping during robot assisted laparoscopic radical prostatectomy for preservation of erectile function.

Using NIM-Eclipse monitoring instrument (Medtronic), we will check action potential of cavernous nerve, bulbocavernosus reflex and pudendal nerve somatosensory evoked potential in real time during robot assisted laparoscopic radical prostatectomy for preservation of erectile function. In this feasibility and protocol setting phase I/II study, we will evaluate the safety and efficacy of pelvic autonomic nerve monitoring and mapping using NIM-Eclipse monitoring instrument.

Inclusion Criteria:

• pathologically proven localized prostate cancer (≤cT3a)
• patients to undergo robot-assisted laparoscopic prostatectomy at our center

Exclusion Criteria:

• prior hormone therapy
• prior radiation treatment on prostate or pelvis
• refused to participate