La maladie de Parkinson en France (serveur d'exploration)

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Clinical predictive factors of subthalamic stimulation in Parkinson's disease.

Identifieur interne : 001200 ( PubMed/Corpus ); précédent : 001199; suivant : 001201

Clinical predictive factors of subthalamic stimulation in Parkinson's disease.

Auteurs : M L Welter ; J L Houeto ; S. Tezenas Du Montcel ; V. Mesnage ; A M Bonnet ; B. Pillon ; I. Arnulf ; B. Pidoux ; D. Dormont ; P. Cornu ; Y. Agid

Source :

RBID : pubmed:11872614

English descriptors

Abstract

High-frequency stimulation of the subthalamic nucleus (STN) constitutes one of the most effective treatments for advanced forms of Parkinson's disease. The cost and potential risks of this procedure encourage the determination of clinical characteristics of patients that will have the best postoperative outcome. Forty-one Parkinson's disease patients underwent surgery for bilateral STN stimulation. The selection criteria were severe parkinsonian motor disability, clear response of symptoms to levodopa, occurrence of disabling levodopa-related motor complications and the absence of dementia and significant abnormalities on brain MRI. Clinical evaluation was performed 1 month before and 6 months after surgery. The improvement in the activities of daily living subscale of the Unified Parkinson's Disease Rating Scale, Part II (UPDRS II) and parkinsonian motor disability (UPDRS III) was greater when the preoperative scores for activities of daily living and parkinsonian motor disability, in particular axial symptoms, such as gait disorders and postural instability assessed at the time of maximal clinical improvement (on drug), were lower. Age and disease duration were not predictive, but parkinsonian motor disability tended to be more improved in patients with younger age and shorter disease duration. The severity of levodopa-related motor complications was not a predictive factor. The outcome of STN stimulation was excellent in levodopa-responsive forms of Parkinson's disease, i.e. in patients with selective brain dopaminergic lesions, and moderate in patients with axial motor symptoms and cognitive impairment known to be less responsive or unresponsive to levodopa treatment, i.e. when brain non-dopaminergic lesions develop in addition to the degeneration of the nigrostriatal dopaminergic system. The results are consistent with the classical inclusion criteria for STN stimulation, but imply that the decision to operate on the oldest patients and/or patients with gait and postural disorders, who are poorly responsive to levodopa, should be weighed carefully.

PubMed: 11872614

Links to Exploration step

pubmed:11872614

Le document en format XML

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