Value of hyperventilation in pattern-reversal visual evoked potentials
Jazyk angličtina Země Velká Británie, Anglie Médium print
Typ dokumentu časopisecké články
PubMed
2795084
PubMed Central
PMC1031751
DOI
10.1136/jnnp.52.9.1107
Knihovny.cz E-zdroje
- MeSH
- dospělí MeSH
- hyperventilace patofyziologie MeSH
- lidé středního věku MeSH
- lidé MeSH
- zrakové evokované potenciály * MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
The effects of a standard 3 minutes' hyperventilation on the full-field pattern-reversal visual evoked potential (VEP) were studied in 33 normal subjects, 30 definite multiple sclerosis patients and in twenty-five patients with abnormal VEPs due to either tumourous compression of the anterior visual pathways or optic atrophy of other origin. Significantly greater reductions in P100 latency occurred in multiple sclerosis patients in comparison with controls (p less than 0.05). This change appeared to be specific for demyelinative type of lesion, for it was not found in cases with other types of pathology. Hyperventilation also increased the sensitivity of visual pathway impairment detection in multiple sclerosis.
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