Deep Brain Stimulation in Parkinson’s Disease
Authors
-
Institute of Neurosciences, Kolkata ,IN
Amit Kumar Ghosh -
Institute of Neurosciences, Kolkata ,INSutirtha Hazra
DOI:
https://doi.org/10.24906/isc/2020/v34/i1/195944Keywords:
Deep Brain Stimulation (DBS), Parkinson’s Disease(PD), Stereotaxy.Abstract
Deep brain stimulation (DBS) is an universally accepted therapy for medically refractory Parkinson’s disease (PD). Both globus pallidus internus (GPi) and subthalamic nucleus (STN) stimulation are effective in improving the symptoms of PD and reducing dyskinesias. STN DBS is the most commonly performed operation for PD as compared to GPi DBS. Ventral intermediate nucleus (Vim) DBS is used occasionally in selected cases as an alternative for tremor predominant PD patients.
Patient selection is very much essential in achieving good outcomes. Good response to levodopa challenge is most important predictor of favourable long-term outcomes. The DBS surgery is typically performed in an awake state and involves stereotactic frame application, CT/MRI imaging, anatomical targeting, electrophysiological confirmation and intra-operative clinical monitoring for efficacy and adverse effects after intra-operative stimulation and implantation of the DBS lead and pulse generator.
Physiological verification is achieved by microelectrode recording followed by implantation of the DBS lead and intraoperative test stimulation to assess benefits and side effects. The various aspects of DBS surgery has been discussed.
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