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Electrical injuries to peripheral nerves.
A M Dendooven1, M Lissens, F Bruyninckx
1Department of Physical Medicine and Rehabilitation, University Hospitals, Leuven, Belgium.
Acta Belgica. Medica Physica : Organe Officiel De La Societe Royale Belge De Medecine Physique Et De Rehabilitation
|October 1, 1990
Summary
Electrical injuries commonly affect peripheral nerves due to frequent contact with power sources. Early electroneuromyography is crucial for diagnosing nerve damage and avoiding medico-legal issues.
Area of Science:
- Neurology
- Biomedical Engineering
- Toxicology
Background:
- Electrical injuries to peripheral nerves are a common clinical concern.
- Understanding the factors influencing nerve damage is essential for effective treatment and medico-legal evaluation.
Purpose of the Study:
- To review the parameters influencing the severity and distribution of electrical nerve injuries.
- To discuss the pathophysiology of electrical injuries to nerve tissue.
- To highlight the importance of early electroneuromyography in managing these injuries.
Main Methods:
- Review of parameters determining electrical injury severity (tissue resistance, susceptibility, current pathway, type, density, contact duration/size).
- Examination of the pathophysiology of nerve damage, including thermal, vascular, histological, electrophysiological, and mechanical factors.
- Emphasis on diagnostic methods for peripheral nerve injury.
Main Results:
- Electrical injury severity depends on multiple factors including tissue properties, current characteristics, and contact parameters.
- Nerve damage results from thermal effects, vascular compromise, direct cellular changes, or mechanical trauma.
- Delayed peripheral neurologic injuries can lead to significant medico-legal complications.
Conclusions:
- Early and accurate diagnosis of electrical nerve injuries is critical.
- Electroneuromyography (EMG) is a vital diagnostic tool that should be performed as early as possible following suspected electrical injury to peripheral nerves.