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Titolo:
Central pain in a hemispherectomized patient
Autore:
Olausson, H; Marchand, S; Bittar, RG; Bernier, J; Ptito, A; Bushnell, MC;
Indirizzi:
McGill Univ, Dept Anesthesia, Montreal, PQ, Canada McGill Univ Montreal PQ Canada iv, Dept Anesthesia, Montreal, PQ, Canada McGill Univ, Montreal Neurol Hosp & Inst, Montreal, PQ, Canada McGill Univ Montreal PQ Canada Neurol Hosp & Inst, Montreal, PQ, Canada McGill Univ, Dept Neurol & Neurosurg, Montreal, PQ, Canada McGill Univ Montreal PQ Canada Neurol & Neurosurg, Montreal, PQ, Canada
Titolo Testata:
EUROPEAN JOURNAL OF PAIN-LONDON
fascicolo: 2, volume: 5, anno: 2001,
pagine: 209 - 217
SICI:
1090-3801(2001)5:2<209:CPIAHP>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-EMISSION-TOMOGRAPHY; HUMAN CEREBRAL-CORTEX; CINGULATE CORTEX; SOMATOSENSORY CORTEX; STIMULI; PET; ACTIVATION; PERCEPTION; PARIETAL; AREAS;
Keywords:
hemispherectomy; central pain; tactile allodynia; functional MRI; psychophysics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Olausson, H Sahlgrens Univ Hosp, Dept Clin Neurophysiol, Bla Straket 7, S-41345 Gothenburg, Sweden Sahlgrens Univ Hosp Bla Straket 7 Gothenburg Sweden S-41345 n
Citazione:
H. Olausson et al., "Central pain in a hemispherectomized patient", EUR J P-LON, 5(2), 2001, pp. 209-217

Abstract

We have examined a hemispherectomized patient who complained of touch-evoked pricking and burning pain in her paretic hand, especially when the hand was cold. Psychophysical examination showed that for the paretic side she confused cool and warm temperatures, and confirmed that she had a robust allodynia to brush stroking that was enhanced at a cold ambient temperature. Functional magnetic resonance imaging (fMRI) showed that during brush-evokedallodynia, brain structures implicated in normal pain processing (viz. posterior part of the interior cingulate cortex, secondary somatosensory cortex, and prefrontal cortices) were activated. The fMRI findings thus indicatethat the central pain in this patient was served by brain structures implicated in normal pain processing. Possible pathophysiological mechanisms include plasticity as well as thalamic disinhibition. (C) 2001 European Federation of Chapters of the International Association for the study of pain.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 06:55:13