Neurophysiologic findings in early acute inflammatory demyelinating polyradiculoneuropathy

Vucic, Steve; Cairns, Kevin D.; Black, Kristin R.; Chong, Peter Siao Tick; Cros, Didier

doi:10.1016/j.clinph.2004.05.009

Cited by 107 publications

(109 citation statements)

References 25 publications

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“…However, a sural-sparing pattern, also known as a normal sural-abnormal median pattern, is useful for the diagnosis of a primary demyelinating neuropathy [7,8,9]. This pattern of sensory conduction abnormality was also one early electrodiagnostic finding in GBS [10,11]. …”

Section: Introductionmentioning

confidence: 99%

Sensory Conduction Study in Fisher Syndrome: Patterns of Abnormalities and Their Clinical Correlation

Lyu

Chang²,

Chu³

et al. 2013

Eur Neurol

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Objective: To report sensory conduction findings in patients with typical Fisher syndrome (FS) and to determine if a specific pattern of sensory conduction abnormalities was present in such patients. Methods: We retrospectively reviewed results of sensory conduction studies of 55 FS patients and compared them with those obtained from 83 age- and sex-matched healthy volunteers. Results: Mean median and ulnar sensory nerve action potential (SNAP) amplitudes were lower in FS patients than in normal subjects, whereas sural SNAP amplitudes were not different between the two groups. Abnormal median/ulnar sensory responses (reduced SNAP amplitude or absent response) were more frequently observed than abnormal sural response. Normal sensory conduction results were found in 31 (56%) patients. Of the 24 (44%) patients with abnormal sensory findings, 18 (33%) had a sural-sparing pattern of abnormalities. Patients with impaired sensation had lower median and ulnar SNAP amplitudes than those without. Conclusions: Abnormal median and ulnar sensory responses were the most frequent sensory findings in FS. Findings of the sural-sparing pattern of abnormalities suggest distal sensory nerve involvement in these patients.

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Section: Introductionmentioning

confidence: 99%

Sensory Conduction Study in Fisher Syndrome: Patterns of Abnormalities and Their Clinical Correlation

Lyu

Chang²,

Chu³

et al. 2013

Eur Neurol

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“…Absent H-re fl exes correlate well with the are fl exia in the lower extremities of GBS patients. The H-re fl exes are absent bilaterally in almost all patients with GBS, including in 95-100 % of patients during the fi rst 1-2 weeks of illness [98][99][100] . Hence, the H-re fl ex is the most sensitive EDX test.…”

Section: Abnormal H-re Fl Exmentioning

confidence: 99%

“…Common abnormalities seen during the fi rst few weeks of illness include absent or delayed H-re fl exes, F-responses or blink re fl exes, "sural sensory sparing," distal CMAP temporal dispersion, or frequent A-waves [ 95,[98][99][100] . During the fi rst 4 days of weakness GBS, about 1/2 of the patients have normal NCSs (except for absent H-re fl ex in the majority of them), while only about 10 % of them have normal studies by the fi rst week of illness [ 98 ] .…”

Section: Electrodiagnostic Criteria In Gbsmentioning

confidence: 99%

“…However, most of these criteria were not subjected to vigorous scrutiny or applied to other neuropathies, and their speci fi cities in GBS diagnosis were not well tested. For example, classic published diagnostic criteria of AIDP in GBS are ful fi lled in 20-70 % of the cases based on the speci fi c criteria utilized [ 99,116 ] . This variation depends on how strict these criteria are in excluding patients with equivocal EDX fi ndings.…”

Section: Electrodiagnostic Criteria In Gbsmentioning

confidence: 99%

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Guillain-Barré Syndrome and Related Disorders

Piccione

Salame

Katirji

2013

Neuromuscular Disorders in Clinical Practice

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“…7,8 F-waves can be abnormal in up to 92% cases of GBS; the most frequent abnormalities are complete absence or prolongation of minimum and mean latency. 9 Elevated CSF protein, with other normal biochemical findings and microscopy (Ͻ10 white cells per high power field), are expected in MFS; however, abnormalities may not be present until the second week of the illness.…”

Section: Further Evolution Of Case Historymentioning

confidence: 99%