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Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing

Published on: October 20, 2021

Shocking therapy: Brief electrical stimulation for delayed nerve repair.

Yuval Shapira¹, Rajiv Midha²

¹Peripheral Nerve Fellow, Department of Clinical Neurosciences and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.

Experimental Neurology

|July 25, 2015

Summary

Brief electrical stimulation (ES) enhances nerve regeneration after delayed repair in rodents, promoting axonal regrowth and neuronal regeneration. This suggests ES may be as effective as immediate repair for nerve injuries.

Keywords:

Nerve injury Nerve repair Rats Regeneration

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Area of Science:

Neuroscience
Regenerative Medicine
Surgical Innovation

Background:

Delayed nerve repair presents challenges to successful axonal regeneration.
Chronic denervation can impede nerve recovery after injury.
Electrical stimulation (ES) has shown potential in promoting nerve repair.

Purpose of the Study:

To evaluate the efficacy of brief electrical stimulation (ES) on nerve regeneration following delayed nerve repair.
To assess ES's impact on axonal outgrowth and neuronal regeneration in a rodent model with chronic denervation.
To compare the effectiveness of ES in delayed versus immediate nerve repair scenarios.

Main Methods:

Rodent model with chronic axotomy and denervation.
Application of brief electrical stimulation (ES) to the repair site.
Assessment of axonal outgrowth and neuronal regeneration into denervated nerve stumps.

Main Results:

Brief ES significantly promoted axonal outgrowth after chronic axotomy.
ES enhanced the regeneration of chronically axotomized neurons into chronically denervated stumps.
The positive effects of ES on nerve regeneration were observed even in delayed repair scenarios.

Conclusions:

Brief electrical stimulation (ES) is effective in promoting nerve regeneration after delayed nerve repair.
ES appears to be as effective in delayed repair as it is in immediate repair.
Clinical trials investigating ES for nerve grafts and nerve transfers are warranted.