Paired VNS for stroke rehabilitation (Vivistim)

Domain IX · Biomedical, neuro & digital · 2021

What it is

Paired vagus nerve stimulation (VNS) for stroke rehabilitation is an implanted, prescription-only device treatment combined with intensive arm rehabilitation. A pulse generator is placed under the skin of the chest and a lead runs under the skin to electrodes on the left vagus nerve in the neck.…

Format

• This is a medical device pathway, not a psychotherapy; the phases below are the treatment pathway as sources describe it, with the psychotherapist's tasks alongside each. Stimulation settings and session-dose details are set by the treating team and are not described here.
• Psychotherapist: decision support, realistic expectations, mood screening, readiness for a demanding course of practice.

Who practises it, and how they are trained or regulated

• Version followed: the Vivistim Paired VNS System as approved by the US FDA (PMA P210007, decision date 27 August 2021) and delivered as in the VNS-REHAB pivotal trial (Dawson et al., Lancet 2021) and its long-term follow-ups; regulatory and company status as of October 2026 per the FDA PMA database and the manufacturer's investor pages.
• Who delivers it. Candidacy is assessed by the stroke/neurology or rehabilitation medicine team; the device is implanted by a surgeon (in reported US programmes, a neurosurgeon) usually as an outpatient procedure; in-clinic paired therapy is delivered by occupational therapists or physical therapists; device programming is done by the clinical team with clinician software and a wireless transmitter, which patients do…

Evidence status, as the guide reports it

• Evidence: VNS-REHAB, a randomised, triple-blind, sham-controlled pivotal trial at 19 stroke rehabilitation services in the UK and USA, enrolled participants from 2 October 2017 to 12 September 2019 (108 implanted; 53 active, 55 sham). Arm impairment scores improved more with active pairing…

Questions to explore with your client

• What drew you to it, and what are you hoping it will change?
• Does it involve any substance, plant preparation, remedy or supplement? Has your doctor or prescriber been told, especially about any medication you take?
• Does it involve intense or unusual breathing? Have you been told about the medical conditions for which that is not advised?
• Is it a group, retreat or community? How do they respond if someone wants to leave or raises a concern?
• Does it use a device, heat, cold, water or a physical procedure? Has a medical professional checked that it is safe for you?
• Who runs it, and what training or registration do they hold?
• What actually happens in a session or meeting, and how often?
• What does it cost, and is there pressure to commit to more?
• How do you feel afterwards, in the hours and days that follow?
• Does it fit with, or clash with, the work we do here?

What practitioners of it watch for

• nodding without understanding; fatigue late in sessions; frustration with word-finding.
• overprotection limiting the client's practice; criticism lowering mood; carer depression.
• all-or-nothing appraisals; comparisons with others in clinic; hopelessness after reassessment.
• the drop in contact and structure after the clinic block as a risk point for mood and practice.
• clients minimising symptoms to stay in the programme; caregivers noticing changes the client does not.

When to involve someone else

• New or worsening physical symptoms, or advice to stop or change prescribed medication: involve the client's doctor or prescriber.
• Signs of coercion, isolation from family and friends, escalating costs or secrecy: discuss openly and consider safeguarding.
• A crisis or thoughts of suicide: follow your crisis protocol. In the US, call or text 988; in the UK and Ireland, Samaritans on 116 123.

Drawn automatically from the guide's own sections. Stay curious: neither endorse nor dismiss what the client values, and check anything that matters against the full guide and its sources. Not medical advice.