Through the Looking Glass: Remote Versus In-Person Videotaped Neurologic Assessment of Essential Tremor

Danielle Newton, Margaret McGurn, Daniella I. Hernandez, Nora C. Hernandez, Mazen Elkurd, Elan D. Louis

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Remote assessment of essential tremor (ET) is unverified. Objectives: To compare assigned tremor scores from a remote videotaped research protocol with those from an in-person videotaped research protocol and assess the validity of remote and in-person videotape-based diagnoses when compared against the intake diagnosis (ET vs. control). Methods: Participants with intake diagnoses of ET (11) or controls (15) completed a tremor examination that was filmed both remotely and in person. Results: Agreement between the tremor ratings assigned during remote and in-person videos was substantial (composite κw, 0.67; mean Gwet's AC2 score, 0.92; mean percent agreement, 63.7%). In ET cases with less severe tremor, agreement was lower (p = 0.008). Diagnostic validity was high for both remote and in-person videos compared to the intake diagnosis. Conclusions: Remote video is a reasonable alternative to in-person video for the assessment of tremor severity and assignment of ET diagnoses. However, at low tremor amplitudes, agreement declines.

Original languageEnglish (US)
Pages (from-to)87-90
Number of pages4
JournalMovement Disorders Clinical Practice
Volume9
Issue number1
DOIs
StatePublished - Jan 2022

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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