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Titolo:
LONG-LATENCY RESPONSES IN PURE SENSORY STROKE DUE TO THALAMIC INFARCTION
Autore:
CHEN CC; CHEN JT; WU ZA; KAO KP; LIAO KK;
Indirizzi:
VET GEN HOSP,NEUROL INST,210,SEC 2,SHIH PAI RD,PEITOU DIST TAIPEI 11217 TAIWAN VET GEN HOSP,NEUROL INST TAIPEI 11217 TAIWAN NATL YANG MING UNIV,SCH MED,DEPT NEUROL TAIPEI TAIWAN
Titolo Testata:
Acta neurologica Scandinavica
fascicolo: 1, volume: 98, anno: 1998,
pagine: 41 - 48
SICI:
0001-6314(1998)98:1<41:LRIPSS>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOMATOSENSORY-EVOKED-POTENTIALS; HUMAN THENAR MUSCLES; NONINVASIVE MEASUREMENT; HAND MUSCLES; REFLEXES; STIMULATION; CONDUCTION; AFFERENTS;
Keywords:
LONG LATENCY REFLEX; SHORT LATENCY REFLEX; MEDIAN NERVE; PURE SENSORY STROKE; THALAMUS; SOMATOSENSORY EVOKED POTENTIALS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
C.C. Chen et al., "LONG-LATENCY RESPONSES IN PURE SENSORY STROKE DUE TO THALAMIC INFARCTION", Acta neurologica Scandinavica, 98(1), 1998, pp. 41-48

Abstract

Objectives - Our study was designed to clarify the role of the thalamus in the generation of the electrically elicited long-latency reflexes (LLR) in voluntarily activated hand muscles. Materials and methods -EMG responses of the thenar muscles were evoked by electrical stimulation of the median nerve at the wrist at motor threshold intensity in 10 patients with acute pure sensory stroke due to thalamic infarction. Concomitant recording of somatosensory evoked potentials (SEPs) was performed. The subjects were asked to steadily abduct the thumb at 20-30% of maximal force against a force transducer. Rectified and averagedEMG activities were recorded. Results - The LLR II was missing completely or significantly attenuated in the majority of the patients (9 of10), of whom 3 also had delayed latency. Abnormal SEPs were documented in 7 patients (7 of 10). In the follow-up, 5 patients had partial reversal of LLR II. LLR II was still pathological in 1 fully recovered patient. Conclusion - Our results further confirm the transcortical generation of LLR II and imply that a thalamic relay is present in the afferent limb of the LLR.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/01/21 alle ore 02:57:18