Vagal Stimulation in Individuals With Stroke

Condition(s) studied

Investigational drug(s) / intervention(s)

vagus nerve stimulation: Manual Vagus Nerve Stimulation (mVNS) Manual vagus nerve stimulation (mVNS) is a non-invasive, accessible, and cost-effective alternative to electrical vagus nerve stimulation (VNS). Unlike invasive methods, mVNS targets key vagal pathways through manual techniques that aim to modulate autonomic function, enhance neuroplasticity, and promote recovery. This study applies mVNS twice a week for eight weeks, using the following techniques: Suboccipital Inhibition Technique: Both hands are placed under the occiput, applying deep, gliding, and progressive pressure for 10 minutes to relax suboccipital muscles. Fourth Ventricle Technique: Hands are positioned under the occiput, applying cephalic traction for 10 minutes to aid autonomic nervous system balance. Diaphragm Release: Hands are placed bilaterally on the anterior lower ribs, applying gentle traction during inspiration and pressure during expiration. Carotid Sinus Massage: Mechanical pressure is applied above the thyroid cartilag

classic rehabilitation: Passive and Active Joint Movements: Applied to maintain joint range of motion and prevent contractures. Muscle Strengthening Exercises: Isometric, isotonic, and resistance exercises are used to strengthen weakened muscle groups. Balance and Gait Training: Supported by proprioceptive exercises and weight-shifting techniques.

Study summary

The aim of this study is to investigate the effects of manual vagus nerve stimulation (VNS) on motor, autonomic, and cognitive functions in individuals with chronic stroke. Additionally, researchers will assess the safety of this treatment. The primary research questions that this study aims to address are as follows:

Does manual vagus nerve stimulation improve motor function in individuals with chronic stroke? Does manual vagus nerve stimulation influence autonomic functions in individuals with chronic stroke? Does manual vagus nerve stimulation accelerate cognitive recovery in individuals with chronic stroke? Researchers will compare the effects of manual vagus nerve stimulation with a standard rehabilitation program.

Participants in the experimental group will receive manual vagus nerve stimulation three times a week for eight weeks, in addition to the standard rehabilitation program. Participants in the control group will receive only the standard rehabilitation program.

Each participant will:

Attend clinical assessments and evaluation tests. Have their motor skills, autonomic function, and cognitive status recorded at the beginning of the treatment and at the end of the eight-week intervention period.

This study will contribute to a better understanding of the potential of manual vagus nerve stimulation as a novel therapeutic approach for individuals with stroke.

Eligibility

Primary outcome measure(s)

• Fugl-Meyer Motor Assessment Total Score — Baseline and Week 8
  Motor function will be assessed using the Fugl-Meyer Motor Assessment (FMA). The scale evaluates motor recovery of the upper and lower extremities in individuals with stroke. Total scores range from 0 to 100, with higher scores indicating better motor function.

Trial sites (1)

Other trials for the same condition