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Neurol India. 2018 Mar-Apr;66(Supplement):S135-S137. doi: 10.4103/0028-3886.226454.

Implications of secondary unresponsiveness to dopaminergic drugs with preserved response to subthalamic nucleus stimulation in Parkinson's disease.

Author information

1
Department of Clinical Neurosciences; Department of Neurology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
2
Department of Clinical Neurosciences, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
3
Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
4
Department of Neurology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.

Abstract

Improvement in motor symptoms with levodopa is one of the hallmark features of Parkinson's disease (PD). The response to levodopa may reduce during the course of the illness. Few studies have also reported reduced response to levodopa in patients with PD several years after deep brain stimulation (DBS) of the subthalamic nucleus (STN) on both the sides. In this study, we report an extreme unresponsiveness to levodopa in the presence of a good response to STN stimulation in a patient 5 years after the DBS proceudre had been carried out. The implications of this phenomenon are also discussed.

KEYWORDS:

Deep brain stimulation; Parkinson's disease; levodopa

PMID:
29503336
DOI:
10.4103/0028-3886.226454
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