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Clin Neurophysiol. 2004 Oct;115(10):2329-35.

Neurophysiologic findings in early acute inflammatory demyelinating polyradiculoneuropathy.

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1
Department of Neurology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA.

Abstract

BACKGROUND:

Patients with early acute inflammatory demyelinating polyradiculoneuropathy (AIDP) may not meet the current neurophysiologic criteria.

OBJECTIVE:

To document neurophysiologic findings in early AIDP.

METHODS:

Clinical and neurophysiologic data from 38 AIDP patients, assessed within 10 days of symptom onset were reviewed.

RESULTS:

In addition to absent H reflexes and abnormal F-wave responses in the acute stage of AIDP, abnormalities of blink reflexes, upper limb sensory responses abnormalities with spared sural responses, presence of distal CMAP dispersion, and A-waves were frequently observed. Established demyelinating neurophysiologic parameters were infrequently seen.

CONCLUSIONS:

Abnormalities of H reflexes and F responses were most frequently noted in early AIDP. Additionally, distal temporal dispersion, prolonged or absent blink reflexes, and A-waves were often present in the acute stage of AIDP when classic diagnostic criteria of AIDP were not satisfied.

SIGNIFICANCE:

Neurophysiologic studies in early AIDP frequently reveal abnormalities that are not specific of primary demyelinating neuropathy.

PMID:
15351375
DOI:
10.1016/j.clinph.2004.05.009
[Indexed for MEDLINE]
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