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Titre du document / Document title

Medial plantar nerve conduction studies in healthy controls and diabetics

Auteur(s) / Author(s)

LØSETH Sissel (1) ; NEBUCHENNYKH Maria (1) ; STALBERG Erik (2) ; MELLGREN Svein Ivar (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Neurology, Institute of Clinical Medicine, University of Tramsø and University Hospital of North Norway, Tromsø, NORVEGE
(2) Department of Clinical Neurophysiology, Uppsala University Hospital, Uppsala, SUEDE

Résumé / Abstract

Objective: To collect a reference material of the medial plantar nerve action potential, to test intra/interobserver reliability in healthy controls and to apply the test to a group of patients with diabetes mellitus. Methods: 98 healthy controls and 50 patients with diabetes mellitus were included. The medial plantar nerve was stimulated orthodromically and recorded with a surface electrode. In the patient group, NCS of motor and sensory nerves and quantitative sensory testing were also performed. Results: Responses of the medial plantar nerve were obtained from all controls except from one aged 72. Amplitude decreased with age (r = -0.68, p < 0.0001). Intra/interobserver reliability was acceptable. 52% of the patients had abnormal overall NCS classification. Forty-eight percent had delayed tibial F-response latency. The medial plantar NCS were abnormal in 59% of the cases (47% abnormal NAP amplitude and 39% reduced CV), 59% of those with abnormal NCS had symptoms of sensory polyneuropathy. Only 24% had abnormal sural amplitude. Cold perception threshold was abnormal in more patients (30%) than warmth perception threshold (14%). Conclusions: Responses were easily obtained in controls under 70 years. In diabetics the amplitudes of the medial plantar nerve were abnormal more often than in the sural nerve. Significance: The medial plantar nerve response is reliable in patients under 70 years, and intra/interobserver reliability is acceptable.

Revue / Journal Title

Clinical neurophysiology    ISSN  1388-2457 

Source / Source

2007, vol. 118, no5, pp. 1155-1161 [7 page(s) (article)] (1/4 p.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Oxford, ROYAUME-UNI  (1999) (Revue)

Mots-clés anglais / English Keywords

Nervous system diseases

;

Peripheral nerve disease

;

Temperature

;

Environmental factor

;

Electrophysiology

;

Endocrinopathy

;

Human

;

Cold

;

Sensory polyneuropathy

;

Polyneuropathy

;

Response latency

;

Classification

;

Diabetes mellitus

;

Reliability

;

Sensory nerve

;

Motor nerve

;

Electrodes

;

Control method

;

Test reliability

;

Action potential

;

Nerve conduction

;

Mots-clés français / French Keywords

Système nerveux pathologie

;

Nerf périphérique pathologie

;

Température

;

Facteur milieu

;

Electrophysiologie

;

Endocrinopathie

;

Homme

;

Froid

;

Polyneuropathie périphérique sensitive

;

Polyneuropathie périphérique

;

Latence réponse

;

Classification

;

Diabète

;

Fiabilité

;

Nerf sensoriel

;

Nerf moteur

;

Electrode

;

Méthode contrôle

;

Fidélité test

;

Potentiel action

;

Conduction nerveuse

;

Mots-clés espagnols / Spanish Keywords

Sistema nervioso patología

;

Nervio periférico patología

;

Temperatura

;

Factor medio

;

Electrofisiología

;

Endocrinopatía

;

Hombre

;

Frío

;

Polineuropatía periférica sensitiva

;

Polineuropatía periférica

;

Latencia respuesta

;

Clasificación

;

Diabetes

;

Fiabilidad

;

Nervio sensorial

;

Nervio motor

;

Electrodo

;

Método control

;

Fidelidad pruebra

;

Potencial acción

;

Conducción nerviosa

;

Mots-clés d'auteur / Author Keywords

Medial plantar nerve response

;

Intra/interobserver variability

;

Diabetic polyneuropathy

;

Nerve conduction studies

;

Quantitative sensory testing

;

Localisation / Location

INIST-CNRS, Cote INIST : 5626 E, 35400014705355.0210

Nº notice refdoc (ud4) : 18700719



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