Acute and long-term effects of subthalamic nucleus stimulation in Parkinson's disease.
Identifieur interne : 005274 ( Main/Merge ); précédent : 005273; suivant : 005275Acute and long-term effects of subthalamic nucleus stimulation in Parkinson's disease.
Auteurs : A L Benabid [France] ; P. Pollak ; C. Gross ; D. Hoffmann ; A. Benazzouz ; D M Gao ; A. Laurent ; M. Gentil ; J. PerretSource :
- Stereotactic and functional neurosurgery [ 1011-6125 ] ; 1994.
English descriptors
- KwdEn :
- Electric Stimulation Therapy, Electrodes, Implanted, Follow-Up Studies, Humans, Hypokinesia (etiology), Hypokinesia (therapy), Middle Aged, Monitoring, Intraoperative, Parkinson Disease (complications), Parkinson Disease (therapy), Postoperative Period, Stereotaxic Techniques, Thalamic Nuclei (physiopathology), Time Factors.
- MESH :
- complications : Parkinson Disease.
- etiology : Hypokinesia.
- physiopathology : Thalamic Nuclei.
- therapy : Hypokinesia, Parkinson Disease.
- Electric Stimulation Therapy, Electrodes, Implanted, Follow-Up Studies, Humans, Middle Aged, Monitoring, Intraoperative, Postoperative Period, Stereotaxic Techniques, Time Factors.
Abstract
In animal models of Parkinson's disease (PD), it is postulated that the excessive output from the subthalamic nucleus (STN) plays a critical role. Selective lesions or high frequency electrical stimulation of the STN can alleviate parkinsonian symptoms in MPTP-treated monkeys. We decided to carry out STN stimulation in patients suffering from severe akinetic forms of PD. After approval of the institutional ethical committee, we operated on a parkinsonian patient aged 51, suffering for 8 years from a strongly disabling akinetorigid form of PD, complicated by an on-off effect (Hoehn and Yahr stage 5 in the worst-off motor phase). Stereotactic surgery was done on one side under local anesthesia. The theoretical target was chosen according to stereotactic atlases, based on ventriculographic landmarks such as anterior and posterior commissures (AC and PC). The final position of the chronic electrodes was optimized using electrophysiological recording and stimulation along with clinical assessment and surface EMG of agonist and antagonist muscles of the examined limbs. A spontaneous increase in neuronal activity was recorded in an area located 2-4 mm under the level of the intercommissural plane, 10 mm from the midline, at mid-distance between AC and PC. Within the same place, a 130-Hz stimulation induced acute and reversible akinesia alleviation mainly on the contralateral limbs, comparable to that obtained with dopaminergic drugs. No dyskinesia, such as hemiballism, was induced by introduction of electrodes or by stimulation. Then a long-term quadripolar DBS Medtronic electrode was inserted in this area. Studies of the effects of chronic stimulation were extensively performed to determine the best spatiotemporal and electrical stimulation variables.(ABSTRACT TRUNCATED AT 250 WORDS)
PubMed: 7631092
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pubmed:7631092Le document en format XML
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<front><div type="abstract" xml:lang="en">In animal models of Parkinson's disease (PD), it is postulated that the excessive output from the subthalamic nucleus (STN) plays a critical role. Selective lesions or high frequency electrical stimulation of the STN can alleviate parkinsonian symptoms in MPTP-treated monkeys. We decided to carry out STN stimulation in patients suffering from severe akinetic forms of PD. After approval of the institutional ethical committee, we operated on a parkinsonian patient aged 51, suffering for 8 years from a strongly disabling akinetorigid form of PD, complicated by an on-off effect (Hoehn and Yahr stage 5 in the worst-off motor phase). Stereotactic surgery was done on one side under local anesthesia. The theoretical target was chosen according to stereotactic atlases, based on ventriculographic landmarks such as anterior and posterior commissures (AC and PC). The final position of the chronic electrodes was optimized using electrophysiological recording and stimulation along with clinical assessment and surface EMG of agonist and antagonist muscles of the examined limbs. A spontaneous increase in neuronal activity was recorded in an area located 2-4 mm under the level of the intercommissural plane, 10 mm from the midline, at mid-distance between AC and PC. Within the same place, a 130-Hz stimulation induced acute and reversible akinesia alleviation mainly on the contralateral limbs, comparable to that obtained with dopaminergic drugs. No dyskinesia, such as hemiballism, was induced by introduction of electrodes or by stimulation. Then a long-term quadripolar DBS Medtronic electrode was inserted in this area. Studies of the effects of chronic stimulation were extensively performed to determine the best spatiotemporal and electrical stimulation variables.(ABSTRACT TRUNCATED AT 250 WORDS)</div>
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