PMID: 591985Dec 1, 1977

Electrophysiological findings in pressure palsy of the brachial plexus

Journal of Neurology, Neurosurgery, and Psychiatry
W Trojaborg

Abstract

Two patients with signs and symptoms of paralysis of the brachial plexus, caused by compression during surgery in one (case 1) and by a knapsack in the other (case 2), were examined. The characteristic electrophysiological findings were: (i) severe attenuation of amplitude of motor and sensory nerve action potentials evoked or recorded above the site of nerve injury compared to those evoked or recorded below, and (ii) slowing of motor and sensory conduction across the damaged area. Case 1 made a complete recovery clinically and electrophysiologically; EMG in case 2 suggested the presence of Wallerian degeneration. The palsies were classified as a local demyelinating block alone (case 1) or combined with axonal loss (case 2).

References

Jan 1, 1977·Journal of Neurology, Neurosurgery, and Psychiatry·W Trojaborg
Sep 1, 1976·Journal of Neurology, Neurosurgery, and Psychiatry·W Trojaborg
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Citations

Sep 1, 1978·Muscle & Nerve·W Trojaborg
Jun 1, 1986·Journal of Neurology·M Swash
Mar 1, 1989·Electroencephalography and Clinical Neurophysiology·C Krarup, R K Sethi
Dec 6, 2005·Paediatric Anaesthesia·Mary E FoxRichard J Hendrickson
Sep 1, 1982·Annals of Neurology·R J LedermanR L Greenstreet
May 19, 2017·Neurosurgery·José Fernando Guedes-CorrêaDaniel Alves Neiva Barbosa

Related Concepts

Nerve Impulses
General Anesthesia
Upper Arm
Brachial Plexus Structure
Surface Electromyography
Hypesthesia, Thermal
Muscle
Internal Nerve Compression Syndromes
Nerve Conduction Function
Nerve-Muscle Preparation

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