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Titolo:
SIGNIFICANCE OF A-WAVES RECORDED IN ROUTINE MOTOR-NERVE CONDUCTION STUDIES
Autore:
BISCHOFF C; STALBERG E; FALCK B; PUKSA L;
Indirizzi:
TECH UNIV MUNICH,DEPT NEUROL & CLIN NEUROPHYSIOL,MOEHLSTR 28 D-81675 MUNICH GERMANY UNIV UPPSALA HOSP,DEPT CLIN NEUROPHYSIOL S-75185 UPPSALA SWEDEN UNIV HOSP,DEPT NEUROL & NEUROSURG TARTU ESTONIA
Titolo Testata:
ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
fascicolo: 6, volume: 101, anno: 1996,
pagine: 528 - 533
SICI:
0924-980X(1996)101:6<528:SOARIR>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
F-WAVES;
Keywords:
A-WAVES; LATE RESPONSES; NEUROPATHIES; NERVE CONDUCTION STUDIES; F-WAVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
C. Bischoff et al., "SIGNIFICANCE OF A-WAVES RECORDED IN ROUTINE MOTOR-NERVE CONDUCTION STUDIES", ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 101(6), 1996, pp. 528-533

Abstract

The occurrence of A-waves during routine F-wave studies was investigated in 556 consecutive patients referred to the Department of ClinicalNeurophysiology at the University Hospital in Uppsala for various neuromuscular disorders. Altogether, 2367 nerves in the upper and lower extremities were studied. An A-wave, with a nearly constant latency anda uniform shape on consecutive stimulations, could be recorded in 184nerves (7.8%) out of 124 patients (22.3%). More than 50% of of patients with A-waves had various types of polyneuropathies. Of all patientswith polyneuropathy, 65% had at least one nerve with A-waves. A-wavesoccurred somewhat less frequently in patients with radiculopathies. Zn other proximal local nerve lesions they were found less often and only exceptionally in patients with distal nerve lesions. A-waves were present in 6 out of 10 patients with motor neurone diseases. There was no correlation between the number of A-waves found in one nerve or thenumber of nerves in a given patient with A-waves and the aetiology orseverity of the underlying disease. A-waves were found in II patientsreferred for various neurological symptoms in whom other neurophysiological findings were normal. This might be interpreted as an early sign of underlying disease because in 100 healthy controls no A-waves could be elicited, with the exception of 3 subjects who had A-waves in the abductor hallucis muscle when the tibial nerve was stimulated. We conclude that the appearance of A-waves should be considered a sign of either a local nerve lesion or a generalised neuropathy in all other nerves except for the tibial nerve. Copyright (C) 1996 Elsevier Science Ireland Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 13:00:30