Cancellation of single F wave by double stimulation in case of chronic denervation

Single F waves evoked by stimulation with above threshold intensity are cancelled by a second shock, as was previously demonstrated with maximal or sub-maximal intensity. Double stimulation of any intensity thus makes it possible to detect a possible reflex component in the spinal response, by elimi...

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Bibliographic Details
Published in:Electroencephalography and clinical neurophysiology 1995-06, Vol.97 (3), p.155-158
Main Authors: Roth, G., Soichot, P.
Format: Article
Language:English
Subjects:
Adult
Aged
Biological and medical sciences
Carpal Tunnel Syndrome - physiopathology
Double discharge
Double stimulation
Electric Stimulation
Electrodiagnosis. Electric activity recording
Electromyography
F wave
Female
H reflex
H-Reflex - physiology
Heteronymous H reflex
Humans
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Muscles - innervation
Muscles - physiopathology
Nervous system
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Description
Summary:Single F waves evoked by stimulation with above threshold intensity are cancelled by a second shock, as was previously demonstrated with maximal or sub-maximal intensity. Double stimulation of any intensity thus makes it possible to detect a possible reflex component in the spinal response, by elimination of the F wave. As an H or a heteronymous H reflex may be a sign of a disordered central motor system state, this fast method has a direct clinical utility.
ISSN:0924-980X
0013-4694
1872-7093
1872-6380
DOI:10.1016/0924-980X(94)00296-J