NanoKnife for prostate cancer in Montreal: preserving quality of life through irreversible electroporation
- 3 days ago
- 3 min read
Receiving a diagnosis of localized prostate cancer immediately raises a difficult question: how to effectively treat the disease while preserving one's quality of life?

Radical surgery and radiation therapy remain valid options, but they carry significant risks of permanent side effects—urinary incontinence, erectile dysfunction, and digestive complications. For men who do not wish to sacrifice their quality of life to treat localized cancer, NanoKnife focal therapy is one of the most important advances in urological oncology. At Clinique Sioufi Urologie, NanoKnife treatment is offered by Dr. Richard Sioufi, a board-certified urologist with over 25 years of experience, in a private setting, without a waiting list.
What is the NanoKnife?
The NanoKnife is a focal therapy technology based on irreversible electroporation (IRE). Unlike traditional thermal treatments that use heat (HIFU, cryotherapy, laser) or radiation to destroy cancer cells, the NanoKnife uses short, high-voltage electrical pulses to create permanent micropores in the tumour cell membrane. These pores irreversibly destabilize the cancer cell, which then dies through a controlled cell apoptosis mechanism.
This non-thermal approach is one of the most distinctive features of the NanoKnife: in the absence of heat, the surrounding tissue structures — erectile nerves, urinary sphincter, rectum, blood vessels — are preserved with remarkable precision.
Why choose the NanoKnife over radical surgery?
Radical prostatectomy (surgical removal of the prostate) remains an effective option for localized prostate cancer, but it involves known and documented risks:
Permanent or prolonged erectile dysfunction occurs in 40 to 70% of cases, depending on the study.
Post-surgical urinary incontinence often requires prolonged rehabilitation
Convalescence lasting several weeks with activity restrictions
Anesthetic risks associated with major surgery under general anesthesia
By targeting only the tumour area identified by multiparametric MRI and guided biopsies, the NanoKnife allows for cancer treatment while leaving healthy prostate tissue and adjacent neurovascular structures intact. For many patients, this results in significantly better preservation of erectile function and urinary continence.
For which patients is the NanoKnife indicated?
The NanoKnife is not recommended for all prostate cancers . Rigorous candidate selection is essential to ensure optimal results. The treatment is generally indicated for men with:
Localized prostate cancer, confirmed by multiparametric MRI and targeted biopsies by MRI-ultrasound fusion
A Gleason score of 6 (group 1) to 7 (groups 2 or 3), indicating a low to intermediate risk
A clearly defined lesion on MRI, ideally unilateral or focal
A strong desire to preserve sexual function and continence
An absence of lymph node or distant metastases
The complete evaluation includes a PSA assessment, a multiparametric MRI of the prostate and targeted biopsies using KOELIS fusion — a system pioneered by Clinique Sioufi in Quebec's private sector.
How is the NanoKnife treatment carried out at the Sioufi Clinic?
Step 1 — Preoperative assessment
Before any procedure, Dr. Sioufi conducts a comprehensive evaluation: multiparametric MRI, KOELIS fusion biopsies, PSA testing, and assessment of general health. This step confirms eligibility for NanoKnife treatment and allows for precise mapping of the treatment area.
Step 2 — The procedure
The NanoKnife procedure is performed under general anesthesia in an operating room and takes approximately 1 to 2 hours. Thin electrodes are positioned in and around the tumour area, guided by real-time transrectal ultrasound. A series of ultrashort electrical pulses is then precisely delivered, creating irreversible electroporation of the targeted cancer cells.
Step 3 — Recovery
Most patients return home the same day or the following day. A temporary urinary catheter is inserted for 3 to 5 days. A return to normal activities is usually possible within 1 to 2 weeks. Rigorous follow-up with PSA testing and MRI scans is scheduled at 3, 6, and 12 months to confirm oncological efficacy.
NanoKnife in Montreal: immediate private access
In Quebec's public healthcare system, access to advanced focal therapies, such as NanoKnife, is extremely limited. Consultation and treatment wait times can extend over several months—an anxiety-inducing period for any newly diagnosed patient.
At the Sioufi Urology Clinic, you benefit from direct access, without a medical referral, to a specialized team and state-of-the-art equipment that meet the highest international standards. Care is comprehensive, from the initial assessment to post-treatment oncological follow-up.
Fast access — consultation within a few days, no waiting list
No medical reference required
KOELIS fusion technology for targeted biopsies — unique in private clinics in Quebec
NanoKnife treatment available in Montreal (Westmount) and Châteauguay
Confidential and bilingual service — French and English
Make an appointment at the Sioufi Urology Clinic Have you been diagnosed with localized prostate cancer and are interested in exploring focal therapies ? Consult Dr. Sioufi for a comprehensive and personalized evaluation. Our clinics in Montreal and Châteauguay welcome you promptly, without referral, in a confidential and professional setting. 📍 Montreal (Westmount) | Châteauguay | sioufiurologie.com/nous-joindre |



