Longitudinal Progression of Essential Tremor: Do Tremor Severity Scores Increase at a Uniform Rate?

ABSTRACT:

Background

Few longitudinal studies assess the progression of essential tremor (ET). One unexplored issue is whether tremor severity increases across time at a uniform rate. That is, does the observed rate of change in tremor severity within a particular patient remain constant or vary across time? This question of intra-individual differences is particularly important since it reflects a primary patient concern-will the nature of change I have seen to date be what I can expect in the future?

Methods

ET cases were enrolled in a prospective, longitudinal study. We selected 35 cases and assessed tremor severity via Bain and Findley ratings of Archimedes spirals assigned by a senior movement disorders neurologist. After reviewing both the change in spiral scores and the rate of

SUBMITTER: McGurn MM 

PROVIDER: S-EPMC9197457 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature