• Bhaskar Ghosh, Amar Mishra, and Prosenjit Sengupta.
• BR Singh Hospitla, Centre for Medical Education and Research, Kolkata.
• J Indian Med Assoc. 2005 Mar 1;103(3):146, 148, 150 passim.

AbstractMovement disorders are common neurological illnesses among the elderly. These include essential tremor, Perkinsonian disorders and chorea of different aetiologies. Parkinsonian disorders can be divided into two major groups of disorders--classical idiopathic Parkinson's disease and Parkinson plus syndrome. The most common and important cause of Parkinsonism is idiopathic Parkinson's disease. Idiopathic Parkinson's disease is most confidently clinically diagnosed if we follow the United Kingdom Parkinson's Disease Society Brain Bank Diagnostic Criteria for Parkinson's disease. The most common degnerative diseases, which minic idiopathic Parkinson's disease are collectively called Parkinson plus syndrome. The most important diseases comprising Parkinson plus syndrome are: progressive supranuclear palsy, multiple system atrophy, cortical-basal ganglionic degneration, diffuse Lewy body disease and Parkinson-dementia-ALS complex. In India the prevalence of Parkinson's disease varied markedly from one study to another. The prevalence rate is high among the urban Parsi community of Mumbai. Incidence and prevalence of Parkinson's disease increase with increasing age. Some risk factors for Parkinson's disease have been narrated briefly. As the number of cases of Parkinsonism is likely to increase along with increasing population, the general practitioners or consultant physicans should have to play a greater role referring the cases to attend neurologists or movement disorder clinic early.

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