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Primary Orthostatic Tremor

Abstract

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NORD is very grateful to Joseph Jankovic, M.D, Professor of Neurology, Director, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Department of Neurology, for assistance in the preparation of this report.

Synonyms of Primary Orthostatic Tremor

  • idiopathic orthostatic tremor

Disorder Subdivisions

  • No subdivisions found.

General Discussion

Summary
Primary orthostatic tremor is a rare movement disorder characterized by a rapid tremor in the legs that occurs when standing. The tremor disappears partially or completely when an affected person is walking or sitting. Individuals with primary orthostatic tremor experience feelings of unsteadiness or imbalance. The tremor is sometimes described as causing "shaky legs" and can cause affected individuals to immediately attempt to sit or walk because of a fear of falling. In many cases, the tremors become more severe over time. Primary orthostatic tremor is a constant problem that can affect the quality of life of affected individuals. The exact cause of primary orthostatic tremor is unknown.

Introduction
Primary orthostatic tremor was first described in 1984 by Heilman. There is controversy within the medical literature regarding whether primary orthostatic tremor is a variant of essential tremor, an exaggerated physiological response to standing still or a distinct clinical entity.

Organizations related to Primary Orthostatic Tremor

Please note that some of these organizations may provide information concerning certain conditions potentially associated with this disorder.

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