Movement Disorders (revue)

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Pallidotomy for Tremor

Identifieur interne : 004F36 ( Main/Exploration ); précédent : 004F35; suivant : 004F37

Pallidotomy for Tremor

Auteurs : Andres M. Lozano [Canada] ; Anthony E. Lang [Canada] ; William D. Hutchison [Canada]

Source :

RBID : ISTEX:FB14715DDAE7F69C49561A4FE7974DF7928999B8

Descripteurs français

English descriptors

Abstract

We studied tremor‐related activity in globus pallidus internus (GPi) neurons and the effects of pallidotomy on tremor in patients with Parkinson's disease. By using micro‐electrode recording, we identified GPi neurons with rhythmic firing at the frequency of contralateral tremor. There was a strong correlation between the tremor‐related neuronal activity and limb tremor (r = 0.73). The majority of tremor‐related neurons were located in the ventral one half of the caudal GPi, the area that is the target for pallidotomy. We found that pallidotomy produced striking improvements in off‐period contralateral tremor. These effects were immediate and were maintained for ≥ 2 years. This benefit is obtained despite the progressive nature of the illness and the often reduced dose of medications after surgery.

Url:
DOI: 10.1002/mds.870131319


Affiliations:


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Le document en format XML

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<term>Pallidotomy</term>
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<term>Parkinson disease</term>
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<term>Prognosis</term>
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