ArticleJournal of neural transmission (Vienna, Austria : 1996)2023
Interrater reliability of motor severity scales for hemifacial spasm.
Article in Journal of neural transmission (Vienna, Austria : 1996), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Efficacy of isolated periocular botulinum toxin A injections versus periocular and adjunctive lower facial injections in hemifacial spasm: a randomized, controlled, noninferiority, crossover trial.Annals of medicine · 2025Article
- Knowledge, Attitudes, and Practices Toward Microvascular Decompression for Hemifacial Spasm Among Neurosurgeons: A Multicenter Cross-Sectional Study.Journal of multidisciplinary healthcare · 2025Article
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Authors and funding
15 authors at 9 institutions in 3 countries.
Funding
Abstract
To compare the inter-rater reliability (IRR) of five clinical rating scales for video-based assessment of hemifacial spasm (HFS) motor severity. We evaluated the video recordings of 45 HFS participants recruited through the Dystonia Coalition. In Round 1, six clinicians with expertise in HFS assessed the participants' motor severity with five scales used to measure motor severity of HFS: the Jankovic rating scale (JRS), Hemifacial Spasm Grading Scale (HSGS), Samsung Medical Center (SMC) grading system for severity of HFS spasms (Lee's scale), clinical grading of spasm intensity (Chen's scale), and a modified version of the Abnormal Involuntary Movement Scale (Tunc's scale). In Round 2, clinicians rated the same cohort with simplified scale wording after consensus training. For each round, we evaluated the IRR using the intraclass correlation coefficient [ICC (2,1) single-rater, absolute-agreement, 2-way random model]. The scales exhibited IRR that ranged from "poor" to "moderate"; the mean ICCs were 0.41, 0.43, 0.47, 0.43, and 0.65 for the JRS, HSGS, Lee's, Chen's, and Tunc's scales, respectively, for Round 1. In Round 2, the corresponding IRRs increased to 0.63, 0.60, 0.59, 0.53, and 0.71. In both rounds, Tunc's scale exhibited the highest IRR. For clinical assessments of HFS motor severity based on video observations, we recommend using Tunc's scale because of its comparative reliability and because clinicians interpret the scale easily without modifications or the need for consensus training.
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Registered trials
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