Clinical Subtypes of Essential Tremor

Elan D. Louis, Blair Ford, Livia F. Barnes
2000 Archives of Neurology  
There is clinical variability in essential tremor (ET), but it is not clear whether this variability is because of the existence of distinct clinical subtypes of ET (ie, forms of ET that may differ in their etiology, rate of progression, or response to treatment). Objectives: To examine in a group of ET cases the age of onset, anatomic distribution, and rate of progression of tremor, and to look for associations between these factors. Methods: Cases of ET were ascertained from a community
more » ... m a community (n=60) and a tertiary referral clinic (n=55) in northern Manhattan, New York, NY. All subjects underwent an interview and videotaped tremor examination. Rate of progression was estimated based on the tremor severity and reported disease duration at the time of evaluation.
doi:10.1001/archneur.57.8.1194 pmid:10927801 fatcat:wb57fvordbbxvlmip5u55y6hxq