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An exploratory study on the feasibility, safety, and efficacy of vagus nerve stimulation combined with robot-assisted synchronous rehabilitation training for the recovery of upper limb motor function in patients with ischemic stroke

An exploratory study of the feasibility, safety and efficacy of vagus nerve stimulation combined with synchronized rehabilitation training for the recovery of upper limb motor function in ischemic stroke patients

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500107439
Enrollment
Unknown
Registered
2025-08-12
Start date
2025-08-12
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemiplegia of the limbs after ischemic stroke

Interventions

experimental group:VNS Joint Robot Synchronized Rehabilitation Training

Sponsors

Xi'an International Medical Center Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. History of unilateral supratentorial ischemic stroke with a disease duration of 6–60 months, currently stable. 2. Age 20–70 years. 3. Right or left limb weakness, with an FMA-UE motor function score of 20–50 points. 4. Ability to communicate, understand, and provide informed consent. 5. Patients who have provided informed consent before surgery, voluntarily signed the informed consent form, and have no contraindications for surgery.

Exclusion criteria

Exclusion criteria: 1. History of hemorrhagic stroke. 2. Persistent difficulty swallowing or inhaling. 3. Use of medications at the start of the study that may significantly interfere with the effects of VNS on the neurotransmitter system, such as central nervous system stimulants, vasoactive drugs, or cardiac stimulants, among others, with specific determination based on the specific medication. 4. Bilateral or unilateral vagus nerve damage. 5.Severe or more severe depression (Beck Depression Inventory >29). 6. Ineligible for device implantation surgery, with potential risk of rejection. 7 Currently using any other stimulation device, such as a pacemaker or other neural stimulator; currently using any other experimental device or medication. 8. Pregnancy, planning to become pregnant, or breastfeeding during the study period. 9. Requirement for thermal therapy during the study period. 10. Active rehabilitation within four weeks prior to informed consent. 11. Within four weeks after 90 days of active VNS therapy, participants will be offered botulinum toxin injection or other non-study-related active rehabilitation for the upper limb. 12. Severe spasticity of the upper or lower limb (modified Ashworth scale score >=3). 13. Severe sensory loss. Sensory loss will be measured using the limb sensation section of the Fugl-Meyer Physical Function Assessment. The assessment includes light touch (two items) and proprioception (four items). Participants with scores below 6 for the upper or lower limbs will be excluded. 14. Participants with severe systemic diseases, such as ALT > 2 times the upper limit of normal, Cr > 6 times the upper limit of normal, severe pulmonary insufficiency, asthma, or arrhythmia (especially bradycardia with a heart rate <= 55 beats per minute). 15. Participants with other intracranial organic diseases, such as intracranial infection, high-grade malignant tumors, or primary epilepsy. 16. Participants with neurological diseases, such as Parkinson's syndrome, Alzheimer's disease, or peripheral neuropathy. 17. Participants with psychiatric disorders, such as schizophrenia or severe depression.

Design outcomes

Primary

MeasureTime frame
FMA-UE score;

Secondary

MeasureTime frame
Functional independence measure, FIM;Berg balance scale,BBS;Action Research arm test,ARAT;Motor Status Scale, MSS;Wolf Motor Function Test, WMFT;Lindmark balance test;Surface electromyography, sEMG;Optically pumped magnetometer magnetoencephalography, OPM-MEG;

Countries

China

Contacts

Public ContactShiming He

Xi'an International Medical Center Hospital

he-shiming@163.com+86 186 2905 1066

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026