Device Information

What is Neuro Stimulation ​

Neurostimulation is a treatment for chronic pain that works by gently altering the way nerves communicate with the brain. It uses mild electrical impulses to interrupt pain signals traveling through the spinal cord, reducing the sensation of pain without relying solely on medications.

This therapy has been safely used for more than 40 years and offers a reversible, minimally invasive option for people whose pain has not improved with other treatments. Many patients experience meaningful pain relief, improved mobility, and a better quality of life.

A neurostimulation system consists of two main parts:

  • Electrodes (leads): One or two thin wires that deliver the electrical impulses to the spinal cord. They are placed in the epidural space and carry the stimulation from the neurostimulator to the nerves.

  • Neurostimulator: A small device, similar to a pacemaker, implanted under the skin. It generates the mild electrical impulses that help block pain signals.

  • Patient Controller: A handheld remote that allows you to adjust your therapy. Because pain can change in location or intensity depending on your position or activity, the controller gives you the ability to increase, decrease, or modify stimulation for the best relief.

The system delivers tiny electrical pulses to the spinal cord, which block or modify pain signals before they reach the brain. Patients receive a handheld programmer, allowing them to adjust the level of stimulation as their pain changes.

At St. Paul’s Hospital, spinal cord stimulators have been implanted since 2000, building on decades of experience worldwide in using this technology to help patients regain comfort and function.

General Questions

What are the risks of a neurostimulator?

Complications are rare, but as with any procedure, risks include:

  • Infection (usually within 2–8 weeks)

  • Bleeding

  • Device migration (movement of electrodes, sometimes requiring surgery)

  • Device damage (e.g., from falls or intense physical activity)

  • Dural puncture, which can cause severe headaches

  • Very rare cases of spinal cord trauma

Will the implanted device give me the same pain relief as the trial?
Yes. The trial is designed to closely mimic the relief you can expect with the permanent implant.

Will the device eliminate my chronic pain?
Not always. Success is defined as at least a 50% reduction in pain. Some patients experience complete relief, while others achieve significant improvement in daily function.

Will I be able to stop taking pain medication?
For some patients, yes. Others may simply need less medication. Always consult your doctor before changing doses.

How often will I need medical follow-ups?

  • Trial phase: 3–4 appointments for assessments and device checks

  • Permanent implant:

    • 2–3 days after surgery: device check and wound care

    • 1 week: dressing removal with family doctor

    • 8 weeks: device review and activity planning

    • 3 months: follow-up with nurse

    • 6 months: phone follow-up

    • 1 year: follow-up with doctor/nurse

Adjustments may be needed in the first months. Call your care team if pain relief changes.

Can I control the stimulation?
Yes. You’ll receive a handheld programmer that allows you to adjust settings as your pain changes.

Can I drive with the device on?

  • Trial phase: Driving is restricted.

  • After implant: You may drive once healed, but it’s recommended to turn the device off before operating a vehicle.

Can I swim or shower?

  • Trial device: Keep dry — no swimming, baths, or showers.

  • Permanent implant: Swimming is safe once healed (after ~8 weeks).

Can I use electronic devices (phones, microwaves, induction hobs, etc.)?
Yes, in most cases. Just avoid placing the stimulator close to motors, magnetic strips, or induction surfaces. Keep phones at least 10 cm from the implant.

Can I return to work or sports?

  • Many patients return to daily activities, including work.

  • Avoid heavy lifting or jobs with strong magnetic fields.

  • Sports involving twisting, stretching, or sudden impact may damage the system. Always discuss with your doctor.

Can I ski, hike, or go to high altitude?
Yes, altitude does not affect the device. Just avoid stress on the implant.

Can I dive or use a sauna?

  • Do not dive deeper than 10 meters or enter hyperbaric chambers above 2.0 ATA.

  • Avoid prolonged heat exposure (steam rooms, saunas, hot tubs). Limit to 20 minutes and leave if you feel localized heat at the implant site.

Can I have an MRI scan?
Not always. Some newer systems are MRI-compatible, but many are not. Your doctor will confirm if your device is safe for MRI.

Can I have X-rays or CT scans?
Yes, if the device is powered off. Always inform medical staff before scans.

What about airport security?

  • Carry your patient ID card at all times.

  • Ask for manual screening when possible.

  • If walking through detectors, turn the device off, pass through the middle, and don’t linger.

Will I need another surgery?
Yes, eventually. The neurostimulator battery lasts 5–15 years, after which it must be replaced.

Why do I need a psychological evaluation before surgery?
To ensure realistic expectations, identify challenges related to chronic pain, and support the best outcome.

How do I charge my device?

  • If rechargeable, you’ll receive training on how to use the external recharger.

  • Recharge wirelessly by placing the recharger over the implant.

  • Do not recharge until at least 2 weeks post-surgery, and only once the incision is healed.

What if I lose my equipment?
Contact the clinic — your care team will provide replacement information.

Can the device be removed?
Yes. If it isn’t providing relief or causes complications, it can be safely removed.

Persistent Spinal Pain Syndrome Type 2

(formerly known as Failed Back Surgery Syndrome)

Complex Regional Pain Syndrome

Neuropathy, Neuropathic Pain, and Painful Peripheral Neuropathy

Chronic Angina Pectoris

Peripheral Vascular Disease and Chronic Critical Limb Ischemia

Neurostimulation and Headache Disorders

Cancer Pain and Neuromodulation: Potential for Improved Quality of Life

Post-Amputation Pain and Neuromodulation