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Titolo:
Literature review of the usefulness of repetitive nerve stimulation and single fiber EMG in the electrodiagnostic evaluation of patients with suspected myasthenia gravis or Lambert-Eaton myasthenic syndrome
Autore:
;
Indirizzi:
Amer Assoc Electrodiagnost Med, Rochester, MN 55905 USA Amer Assoc Electrodiagnost Med Rochester MN USA 55905 ester, MN 55905 USA
Titolo Testata:
MUSCLE & NERVE
fascicolo: 9, volume: 24, anno: 2001,
pagine: 1239 - 1247
SICI:
0148-639X(200109)24:9<1239:LROTUO>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTROMYOGRAPHY; MUSCLE; JITTER; MINIMONOGRAPH; VALUES; LEMS;
Keywords:
Lambert-Eaton myasthenic syndrome; single fiber electromyography; myasthenia gravis; neuromuscular junction; repetitive nerve stimulation;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: AAEM Quality Assurance Comm Amer Assoc Electrodiagnost Med, 421 1st Ave SW,Suite 300 E, Rochester, MN 55905 USA Amer Assoc Electrodiagnost Med 421 1st Ave SW,Suite 300 E Rochester MN USA 55905
Citazione:
MUSCLE NERV, 24(9), 2001, pp. 1239-1247

Abstract

A retrospective literature review of the electrodiagnosis of myasthenia gravis (MG) and Lambert-Eaton myasthenic syndrome (LEMS) through July 1998 was performed for the purpose of generating evidence-based practice parameters. There were 545 articles identified, of which 13 articles met at least three of the six criteria set previously by the American Association of Electrodiagnostic Medicine (AAEM). An additional 21 articles were identified from review articles or the references of these first 13 articles leading to atotal of 34 articles. Results of studies utilizing repetitive nerve stimulation (RNS) showed that a 10% decrement in amplitude from the first to fourth or fifth intravolley waveform while stimulating at 2-5 Hz is valid for the diagnosis of MG. The degree of increment needed for the diagnosis of LEMS is at least 25% but most accurate when greater than 100%. Abnormal jitteror impulse blocking are the appropriate criteria for diagnosis of neuromuscular junction (NMJ) disorders when using single fiber electromyography (SFEMG). SFEMG is more sensitive than RNS for the diagnosis of disorders of neuromuscular transmission, but may be less specific and may not be available. Therefore, RNS remains the preferred initial test for MG and LEMS. (C) 2001 American Association of Electrodiagnostic Medicine.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 00:22:19