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Spinal Cord Stimulation May Be A Boon For Stroke Patients

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A small clinical trial has suggested that spinal cord stimulation may help stroke patients regain movement in their limbs and hands. In an article published in Nature Medicine, researchers detailed the experience of the first two people treated in a clinical trial involving a spinal implant. The implant improved the patients’ strength, grip force, and movement, thereby enabling them to perform previously impossible actions.

Clinical proof that spinal cord stimulation- SCS can aid in the rehabilitation of leg motor function in individuals with spinal cord injuries has previously been produced by other organizations. Nevertheless, since strokes occur in the brain rather than the spine, there was some uncertainty as to whether the intervention would be effective for patients dealing with the consequences of the cerebrovascular event. The clinical trial is the first step in the process of addressing those scepticisms.

In order to boost the excitement of motoneurons in the arm and hand, researchers inserted two leads in the necks of the patients. According to a professor of mechanical engineering at Carnegie Mellon University and a co-senior author, Douglas Weber, this strategy is based on the understanding of sensory nerves in the arm and hand that communicate with motor neurons in the spinal cord, which in turn control muscles.

According to Weber in a statement, these sensory neurons can be stimulated to increase the activity of muscles that have been damaged by a stroke. The patient still has complete control over their emotions, which is important. The stimulation is supportive and only strengthens muscle activation when patients are attempting to move.

The two subjects’ grip strength dramatically increased after getting the implant. The older, more severely impaired patients saw the biggest change, with an increase of 108%. This had real-world benefits, allowing the patient to do things independently that they hadn’t been able to do in years, like open a lock or eat with a knife and fork.

According to the procedure, the leads have to be taken out after 29 days. The subjects maintained some benefits even after the implants were removed, according to later evaluations. No serious adverse events were reported.

The study does not have a control arm, so there is potential to question the impact of the implant. However, the team is encouraged enough by the early data to continue, and the researchers are still enrolling patients in the trial.

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