Overview
What It Is The Evoke system is a closed-loop spinal cord stimulator that measures the spinal cord’s neural response (ECAPs) to each pulse and automatically adjusts stimulation to stay in a therapeutic range. It is used for chronic pain after a trial period and permanent implant.
How It Works Conventional spinal cord stimulation can drift out of the effective zone with posture and movement. Closed-loop control keeps stimulation at the intended neural dose, aiming for more consistent pain relief. Stable neuromodulation of pain pathways may support longer-term reduction in pain-related network hypersensitivity.
Conditions - Used for: chronic pain indications approved for spinal cord stimulation (device-specific labeling applies). - Note: Requires a successful trial before permanent implant. Insurance coverage follows neuromodulation criteria for chronic pain.
How it is administered
Trial period followed by surgical implant of a closed-loop spinal cord stimulator. Ongoing programming and follow-up are required.
Conditions connected in the NPA database
The NPA Treatment Database lists this treatment in connection with 1 condition record. A database relationship does not establish effectiveness, safety, or suitability for an individual.
Related questions
These controlled question pages reference this treatment through stored condition relationships.
Symptoms connected in the NPA database
The current record associates this treatment with the following symptom information. This is not a claim that the treatment will improve these symptoms.
Sensory & Pain
- heightened sensitivity
- Persistent pain (aching, burning, stabbing)
Practical information
Insurance coverage
Often covered for eligible chronic pain patients when criteria and prior authorization are met.
Cost information
High (device + surgery + programming); typically covered when medically necessary.
Results and outcomes described in the source record
Trial assesses immediate response; longer-term benefit evaluated over months after permanent implant.
Side effects and risks
Surgical risks (infection, lead migration); stimulation-related paresthesia or discomfort possible.
Research context in the NPA database
This section reproduces the current database's research summary and detail. Structured citation metadata has not been supplied, so it should not be read as an independently verified literature review.
Research summary
Evidence Level: Moderate to Strong (within SCS indications) What the research shows: Closed-loop ECAP-controlled stimulation aims for more consistent neural dosing than open-loop SCS. Key takeaway: An advanced SCS option for selected chronic pain patients who respond to a trial.
Research detail
Overview The Saluda Evoke system uses measured spinal cord responses (ECAPs) to automatically adjust stimulation in real time.
Evidence Base and Published Work • Clinical studies support closed-loop SCS for maintaining therapeutic stimulation levels and pain outcomes in approved indications. • Related systematic reviews of spinal cord stimulation provide context for patient selection and outcomes.
Outcomes Outcomes most frequently described include more consistent pain relief when closed-loop control keeps stimulation in the therapeutic window. Evidence aligns with broader SCS literature for selected chronic pain conditions.
Questions to ask a provider
1. Am I a candidate for the Evoke closed-loop spinal cord stimulation system for my chronic pain? 2. How does ECAP-controlled closed-loop stimulation differ from conventional SCS? 3. What pain relief outcomes have been reported in clinical studies? 4. What does the trial period and permanent implant process involve? 5. Is the Evoke system covered by insurance for my diagnosis, and what prior authorization is required?
Website and contact information
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