SAFE Nerve Sparing Guided by Micro-ultrasound (MUS)
Robotic-Assisted Laparoscopic Prostatectomy (RALP) and SAFE (Saline Assisted Fascial Engorgement) Nerve Preservation Guided by Micro-ultrasound: A Phase III RCT
About This Trial
- This study is testing a new surgical technique that uses high-resolution ultrasound imaging and gentle fluid injections during robotic prostate removal to better protect the nerves responsible for erections.
- It is designed for sexually active adult men diagnosed with prostate cancer who are already scheduled to have nerve-sparing prostate surgery.
- The goal of this research is to see if this new method helps patients safely regain their sexual function more quickly after surgery.
- Before considering this trial, patients should know that those currently taking hormone therapy or having repeat prostate surgery cannot participate.
More Information
- Robotic-assisted radical prostatectomy (RALP) has become the Standard of Care in the management of localized prostate cancer.
- However, post-prostatectomy erectile dysfunction (ED) and urinary incontinence still pose a challenge that adversely affects the patient's quality of life.
- Hydrodissection (HD) was introduced in 1987 in the medical field and it was tested for the first time during a retropubic radical prostatectomy back in 2005.
- Since then, research has indicated an improvement in erectile function results, presumably because of a less traumatic neural dissection and a decreased risk of neuropraxia.
- In an effort to achieve a balance between oncological excision and functional preservation, prostate surgery is evolving to incorporate intraoperative real-time evaluation of extracapsular extension.
- Recently, a micro-ultrasound operating at 29 MHz has been introduced.
- It provides a resolution down to 70 μ to assess the glandular pattern and cellular density of the prostatic tissue.
- Given the experience in more than a thousand cases with this technology, and the growing literature showing promising results in the detection and staging of prostate cancer; the researchers decided to implement this tool as guidance for hydrodissection of the layers of the lateral prostatic fascia.
- Robotic-Assisted Laparoscopic Prostatectomy and SAFE (Saline assisted fascial engorgement) nerve preservation guided by Microultrasound (MUS) is a prospective randomized controlled trial designed to evaluate the impact of normal saline solution hydrodissection (HD) on erectile function outcomes after RALP.
- This innovative approach consists of a transrectal ultrasound-guided HD using a high-resolution Microultrasound (MUS) (ExactVu micro-ultrasound, Exact Imaging, Markham, Canada).
- The technique will be applied to those patients who undergo grade 1, 2, or 3 NS approach taking into account the grading system proposed by Tewari et al.
- The hypothesis is that the SAFE technique could minimize the risk of a traumatic neurovascular bundle dissection while assessing the prostatic capsule integrity with a high-resolution MUS.
- The researchers also hypothesize that the use of SAFE along with RALP will optimize the post-surgery recovery of erectile function.
Who Can Enroll
- Age Range: 18 years and older
- Gender: Male
- Who This Trial is For: This study is testing a new surgical technique that uses high-resolution ultrasound imaging and gentle fluid injections during robotic prostate removal to better protect the nerves responsible for erections.
Study Details
- Start Date: November 14, 2023
- Lead Sponsor: Icahn School of Medicine at Mount Sinai
Full Eligibility Criteria
Inclusion Criteria
- Age > 18 years at the time of consent.
- Men who are potent (SHIM ≥ 17) and sexually active, who are planned to undergo a grade 1, 2, or 3 nerve-sparing approaches, as per the grading system during RALP.
- Ability to understand and the willingness to sign a written informed consent.
Exclusion Criteria
- Subjects who are candidates for salvage RALP
- Subjects on androgen deprivation therapy (ADT)
- Subjects in whom PDE5 inhibitors are contraindicated
Treatments
- Procedure: RALP (Robotic-assisted radical prostatectomy)
- Drug: SAFE (Saline assisted fascial engorgement)

