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Titolo:
EFFECT OF ELECTRICAL-STIMULATION OF THE THALAMIC VIM NUCLEUS ON HAND TREMOR DURING STEREOTACTIC THALAMOTOMY
Autore:
TAKAHASHI A; WATANABE K; SATAKE K; HIRATO M; OHYE C;
Indirizzi:
GUNMA UNIV,SCH MED,DEPT NEUROSURG,3-39-22 SHOWA MACHI MAEBASHI GUMMA 371 JAPAN
Titolo Testata:
ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
fascicolo: 4, volume: 109, anno: 1998,
pagine: 376 - 384
SICI:
0924-980X(1998)109:4<376:EOEOTT>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
VENTRALIS INTERMEDIUS NEURONS; MOTOR THALAMUS; SUPPRESSION;
Keywords:
STEREOTACTIC SURGERY; ACUTE ELECTRICAL STIMULATION; INTRACTABLE TREMOR; MICRORECORDING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
A. Takahashi et al., "EFFECT OF ELECTRICAL-STIMULATION OF THE THALAMIC VIM NUCLEUS ON HAND TREMOR DURING STEREOTACTIC THALAMOTOMY", ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 109(4), 1998, pp. 376-384

Abstract

Objective: The aim of this study was to analyze the correlation between neuronal responses in the thalamic ventralis intermedius (Vim) nucleus to peripheral, natural stimulation and the modulation of tremor byelectrical stimulation during stereotactic thalamotomy. Design and methods: The authors studied 36 patients with hand tremor using a microelectrode. The responses of tremor to electrical stimulation were analysed electromyographically. Sixty stimulation sites were divided into three groups. Results: Group A (20 sites) where responses to stretchingof the contralateral forearm muscles were recorded. Group B (26 sites) where responses to stretching of the other muscles of the upper extremity were recorded. Electrical stimulation at sites in groups A and Btemporarily suppressed the contralateral tremor, but the minimum current intensity to suppress tremor at sites in group A was less than that in group B. Electrical stimulation in group C (14 sites), where kinesthetic responses of contralateral lower extremity were recorded, resulted in increased amplitude of hand tremor. Selective coagulation including the area of tremor suppression resulted in abolition of the tremor in all patients. Conclusions: These results suggest that the most effective site for thalamotomy may also be suitable for chronic stimulation in the Vim nucleus. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.

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Documento generato il 16/07/20 alle ore 15:54:12