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Essential tremor: a nuanced approach to the clinical features
  1. Elan D Louis1,2,3
  1. 1 Division of Movement Disorders, Department of Neurology, Yale School of Medicine, Yale University, New Haven, CT, USA
  2. 2 Center for Neuroepidemiology and Clinical Neurological Research, Yale School of Medicine, Yale University, New Haven, CT, USA
  3. 3 Department of Chronic Disease Epidemiology, Yale School of Public Health, Yale University, New Haven, CT, USA
  1. Correspondence to Dr Elan D Louis, Yale Neurology, Division of Movement Disorders, New Haven, CT, USA; elan.louis{at}yale.edu

Abstract

Essential tremor is the most common form of tremor in humans. Given neurologists’ high exposure to this condition, and its seemingly straightforward phenotype, it might seem easy to diagnose. However, 30%–50 % of patients labelled as having ‘essential tremor’ have other diagnoses, mostly Parkinson’s disease and dystonia. The tremor of essential tremor is neither non-descript nor featureless but is multifaceted and highly patterned. This review focuses on its clinical features, beginning with a discussion of tremors and then briefly discussing its additional motor features, and presents several aids to help distinguish essential tremor from Parkinson’s disease and dystonia. Careful attention to certain clinical nuances will aid the diagnosis and care of patients with essential tremor.

  • essential tremor
  • clinical neurology
  • neurological examination
  • tremor
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Footnotes

  • Funding This study was funded by NINDS (R01NS073872, R01NS086736, R01NS088257, R01NS094607).

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Commissioned. Externally peer reviewed by Peter Bain,

    London, UK

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