Continuous Monitoring of Essential Tremor: Standards and Challenges. Issue 8 (18th September 2022)

• Record Type: Journal Article
• Authors: McGurrin, Patrick; McNames, James; Haubenberger, Dietrich; Hallett, Mark
• Is Part Of: Movement disorders clinical practice. Volume 9:Issue 8(2022)
• Page Start: 1094
• Page End: 1098
• Publication Date: 2022-09-18
• Subjects: essential tremor -- inertial sensors -- long‐term recordings; Movement Disorders; Movement disorders -- Periodicals; Movement disorders; Periodicals; Periodicals; 616
• DOI: 10.1002/mdc3.13558
• Languages: English
• ISSNs: 2330-1619

Abstract

ABSTRACT: Background: The value of continuous symptom monitoring in people with essential tremor is uncertain. Objectives: To determine the relationship between tremor amplitude measured with wearable inertial sensors and clinician‐ and patient‐rated measures. Methods: For 14 days, patients (1) wore inertial sensors on both wrists, (2) self‐rated their tremor using a diary, (3) drew spirals, and (4) completed an activities of daily living scale once daily. Patients were also scored using The Essential Tremor Rating Scale (TETRAS) performance in the clinic by a clinician. Results: We found strong correlations in patient‐reported metrics of tremor, but weak correlations between these data and both the inertial sensor data and the in‐clinic TETRAS scores. Conclusions: The patient experience of tremor during normal daily activities may differ from the transducer‐based measures of tremor amplitude and rating scales of tremor severity. Future studies should consider how to record features of tremor that are important to patients.