Blocs de conduction et neuropathies peripheriques. [Conduction blocks and peripheral neuropathies]

Détails

ID Serval
serval:BIB_A516D24F23A1
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Institution
Titre
Blocs de conduction et neuropathies peripheriques. [Conduction blocks and peripheral neuropathies]
Périodique
Revue Neurologique
Auteur(s)
Kuntzer  T., Magistris  M. R.
ISSN
0035-3787 (Print)
Statut éditorial
Publié
Date de publication
07/1995
Peer-reviewed
Oui
Volume
151
Numéro
6-7
Pages
368-82
Notes
English Abstract Journal Article Review --- Old month value: Jun-Jul
Résumé
The conduction block (CB) of the nerve impulses in the peripheral nervous system induces a partial or complete loss of the nerve function, usually more marked on the motor fibers. The CB is due to a focal loss of the electrical properties of the nerve fibers. The underlying mechanisms include paranodal and segmental demyelination, and physical or chemical dysfunction of the ionic channels. The electrophysiological study allows distinction of axonal lesion from dysfunction due to CB. Recognition and quantification of the CB requires criteria that are not yet widely accepted. The different modalities of the examination are detailed and the criteria are discussed. The peripheral neuropathies with CB have different aetiologies; physical (electrical, thermal, percussion, compression or constriction injuries, radiation-induced), toxic (acting either on the axon or the myelin), more rarely ischaemic (arteriopathy or vasculitis), but frequently inflammatory (acute or chronic, primary or secondary) or related to dysimmune states (multifocal sensory-motor and motor neuropathies with persistent CB). Their review allows a discussion of their differential diagnosis in relation to the underlying mechanisms, site and duration (transient to persistent) of the CB.
Mots-clé
Animals Electrophysiology Humans Nerve Fibers, Myelinated *Neural Conduction *Neural Inhibition Peripheral Nervous System Diseases/diagnosis/*etiology/physiopathology
Pubmed
Web of science
Création de la notice
25/01/2008 12:43
Dernière modification de la notice
20/08/2019 15:10
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