Procedures

REZUM treatment of Benign prostatic hypertrophy (BPH)

NEW TREATMENT OF BPH APPROVED BY HEALTH CANADA

Innovative water vapor treatment of benign prostatic hypertrophy (BPH): A new treatment alternative before thinking of prostate surgery.

The REZUM treatment of the prostate is designed to treat, under local anesthesia, patients with uncomfortable symptoms associated with benign prostatic hyperplasia (BPH) such as urinary frequency, urinary urgency, irregular flow or low flow rate.

REZUM is a potential alternative to BPH medications to relieve symptoms safely, effectively and quickly.

How does REZUM treatment of the prostate work?
The REZUM system is a portable device that uses radiofrequency to generate "wet thermal energy” in the form of water vapour, and inject it into different areas of the prostate in short sequences. In other words, the water vapour is injected into the prostate tissue that blocks the urinary flow of the bladder. This vapour is immediately reconstituted in water, releasing the energy stored in the cell membrane. Thus this technic gently and immediately causes cell damage, followed by cell death. Over time, your body will absorb treated tissue with its natural healing response. The volume of the prostate can then be reduced to 40%, in 3 to 6 months.

What are the benefits of the REZUM treatment of the prostate?
  • No general anesthesia
  • Minimally invasive technique
  • Resorption of targeted tissues
  • Preservation of sexual functions
  • Decreased urinary tract obstruction
  • Improvement of symptoms, without medication
  • Back to daily activities after a few days
Who are the men who can benefit from REZUM treatment of the prostate?
  • Men who do not want to take drugs to treat BPH.
  • Men who are bothered by BPH symptoms, despite medical treatment.
  • Men who do not want surgery to treat their BPH.
  • Men who can not undergo prostate surgery under general anesthesia.


  • However, the use of the REZUM system is contraindicated in patients with an artificial urinary sphincter or a penile implant.
What is the comparison of the effectiveness of REZUM treatment and medical treatment?
The REZUM vs MTOPS study of Gupta & al. in the Journal of Urology in 2018 demonstrated identical, if not better, results than medical treatment.

Goal:  They compared the single steam thermal therapy procedure with combined daily medical therapy (Doxazosin and Finasteride) in men with benign prostatic hyperplasia.

Population:  They evaluated the long-term outcome of treatment of lower urinary tract symptoms due to benign prostatic hyperplasia of more than 1,000 patients over a 3-year period. Patients were moderately or severely symptomatic (IPSS greater than 13) and the volume of their prostate was moderate to large (30-80 g).

Results:  The improvement in symptoms was greater than that seen with Doxazonine alone or Finasteride alone, but similar to that of combination drugs. A single steam thermal therapy procedure resulted in an effective and lasting improvement of symptoms with observed rates of clinical progression, lower than those of long-term daily use of the medication.
How long will it take for symptoms to improve after REZUM treatment?
The improvement will gradual. It will be noticeable after two weeks but more so between 3 to 6 months after the intervention. After 3 months, the medication may be stopped.
Do the improvement Last Long after REZUM treatment?
Clinical studies demonstrate sustained improvement in symptoms up to 4 years. Additional studies are underway to determine the long-term outcome of patients.
How does a REZUM treatment of the prostate work?


REZUM is a treatment for BPH is in one appointment. This intervention is performed in a minor surgery room in one of the Marois Clinics. REZUM can be practiced under oral sedation and under local anesthesia (prostatic block). This treatment does not require general anesthesia. Dr. Marois will discuss pain management options with you, to manage your comfort during the procedure. The REZUM intervention is more uncomfortable than painful. The patient is installed on his back with the legs placed in stirrups. Sterile fields are placed. Anesthetic gel is first introduced into the urethra, followed by the REZUM instrument to the level of the prostate. Several injections of steam are then performed in each side of the prostate as well as in an intravesical lobe (middle lobe), if present. Everything is directed under direct vision with a camera. A urinary catheter is left in place for a few days.
What are the possible complications of a REZUM treatment of the prostate?
REZUM has been shown to reduce urinary symptoms in many men with prostate hypertrophy (BPH). As a minimally invasive procedure, REZUM has shown fewer side effects than those usually associated with surgical treatments, but as with any interventional procedure, some of the following side effects may occur temporarily:
  • Painful urination
  • Blood in the urine (hematuria)
  • Blood in sperm (hemospermia)
  • Frequent urination
  • Inability to urinate or empty the bladder completely
  • Need for short-term catheterization (urinary catheter)

Most of these adverse events disappear within 3 weeks of the procedure, but some of these effects may be prolonged. Please discuss with Dr. Marois ways to potentially reduce the effects of these risks.
Some of the following options may help relieve discomfort during the short-term healing process:
  • Take a mild pain medication, such as Tylenol
  • Take a warm bath or sit on a hot pad
  • Eliminate caffeine, chocolate and alcohol temporarily from the diet

Request an Appointment

Dr. Marois is a urologist who is not a member of the Régie d’Assurance Maladie du Québec (RAMQ). As such, the clinic can not claim the RAMQ for the payment of his services. If you consult Dr Marois, you must pay for the services rendered.

Cancellation of appointment:

To ensure the smooth running of the clinic and a minimum of courtesy towards other patients and our staff, we ask you to notify us 48 hours in advance for the cancellation of a consultation, 5 working days in advance for a surgery at the office and 21 working days in advance for a major surgery. If these deadlines are not respected, a cancellation fee of 50% of the service will be charged.

Change of appointment:

We understand that events occur, so we ask you to provide us with at least a 24-hour notice for any change in their appointment; we will be happy to accommodate you, the best we can. However, if you fail to inform us within this timeframe or do not show up, we will charge a $ 100 fee.

Thank you for your understanding.

Attach a file