Wether VNS in Early Stage (3 Months) is Safe and More Beneficial for Post-stroke Motor Rehabilitation

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age30-75
SponsorQilu Hospital of Shandong University

About this trial

Upper-extremity impairment after stroke remains a major therapeutic challenge and a target of neuromodulation treatment efforts. In previous study, Vagus nerve stimulation was constricted to patients 9 months after stroke. In this randomized phase I trial, we would apply vagus nerve stimulation in an early stage (\<6 month) and observe its theraputic effect on motor function after ischaemic Stroke.We hypothesized that the early stimulation could be safe and more beneficial compared to stimulation in late stage.

Eligibility criteria

Qualifiers

Eligible individuals suffered a first-time, unilateral, ischemic stroke in the middle cerebral artery territory that spared the diencephalon and basal ganglia 3-36 months before surgery.

Individuals with persistent moderate-to-severe upper-extremity hemiparesis as defined by an FM-UE score of ≤42

Sufficient upper-extremity motor ability to engage in rehabilitation (that is, a score of ≥1 on the FM-UE elbow flexion, elbow extension or finger mass flexion or extension).

Disqualifiers

Excessive spasticity or contracture of the upper-extremity muscles (that is, Modified Ashworth Scale = 4) . Severe cognitive impairment (Mini Mental State Examination < 24)

Trial design

Treatments tested in this trial

  • Vagus Nerve Stimulation in early stage
  • Vagus Nerve Stimulation in late stage

Treatment groups

100 Participants
are divided into 3 treatment groups