ArticleTremor and other hyperkinetic movements (New York, N.Y.)2015
Orthostatic Tremor: A Spectrum of Fast and Slow Frequencies or Distinct Entities?
Article in Tremor and other hyperkinetic movements (New York, N.Y.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.
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Who cites it
23 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Clinical and Electrophysiological Heterogeneity of Orthostatic Tremor: An Individual Patient Data Analysis.Tremor and other hyperkinetic movements (New York, N.Y.) · 2026Pooled it
- Slow Orthostatic Tremor: Review of the Current Evidence.Tremor and other hyperkinetic movements (New York, N.Y.) · 2019Pooled it
- Orthostatic tremor and its subtypes: a single centre cohort of 74 patients.Journal of neurology · 2026Article
- Multidimensional Phenotyping of Orthostatic Tremor and Orthostatic Myoclonus: Baseline Findings from a Longitudinal Clinical Study.Tremor and other hyperkinetic movements (New York, N.Y.) · 2026Article
- Electrophysiological Characterization of aMovement disorders clinical practice · 2023Article
- Myoclonus and other jerky movement disorders.Clinical neurophysiology practice · 2022Review
- Video electroencephalogram combined with electromyography in the diagnosis of hyperkinetic movement disorders with an unknown cause.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021Observational
- 3-Hz Postural Tremor in MSA-C and SCA: Revisiting an Old but Underestimated Cerebellar Sign by Posturography.Cerebellum (London, England) · 2021Article
- Associated co-morbidities in a retrospective cohort of orthostatic tremor.Journal of neurology · 2021Article
- Tremor Syndromes: An Updated Review.Frontiers in neurology · 2021Review
- Principles of Electrophysiological Assessments for Movement Disorders.Journal of movement disorders · 2020Article
- Towards computerized diagnosis of neurological stance disorders: data mining and machine learning of posturography and sway.Journal of neurology · 2019Article
- Slow Orthostatic Tremor and the Case for Routine Electrophysiological Evaluation of All Tremors.Tremor and other hyperkinetic movements (New York, N.Y.) · 2019Article
- The use of smartphone in measuring stance and gait patterns in patients with orthostatic tremor.PloS one · 2019Article
- Orthostatic Tremor: Pathophysiology Guiding Treatment.Current treatment options in neurology · 2018Review
- A Rare Presentation of Orthostatic Tremor as Abdominal Tremor.Tremor and other hyperkinetic movements (New York, N.Y.) · 2018Article
- Consensus Statement on the classification of tremors. from the task force on tremor of the International Parkinson and Movement Disorder Society.Movement disorders : official journal of the Movement Disorder Society · 2018Review
- Lessons I have learned from my patients: everyday life with primary orthostatic tremor.Journal of clinical movement disorders · 2017Article
- Orthostatic tremor: current challenges and future prospects.Degenerative neurological and neuromuscular disease · 2016Review
- Orthostatic Tremor: An Update on a Rare Entity.Tremor and other hyperkinetic movements (New York, N.Y.) · 2016Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOrthostatic tremor (OT) is defined by the presence of a high-frequency (13-18 Hz) tremor of the legs upon standing associated with a feeling of unsteadiness. However, some patients have discharge frequencies of <13 Hz, so-called "slow OT". The aim of this study was to characterize patients with unsteadiness upon standing found to have <13 Hz tremor discharges on neurophysiologic testing.
methodsA retrospective review was performed on all subjects with a diagnosis of OT who were referred to the Mayo Clinic, Scottsdale, AZ, between 1999 and 2013 for confirmation using neurophysiology.
resultsFourteen of 28 subjects (50%) had OT discharges of <13 Hz, of whom eight had frequencies of <10 Hz and six had frequencies of 10-13 Hz. Lower frequency discharges tended to have a broader spectral peak, greater variability in discharge duration, and lower inter-muscular coherence. Subjects with <13 Hz OT had shorter mean disease duration at time of neurophysiology testing (2.00 years in <10 Hz group, 7.96 years 10-13 Hz group, and 11.43 years >13 Hz; p = 0.002). The proportion of subjects who experienced gait unsteadiness (85.7% vs. 66.6% vs. 21.4%; p = 0.016), falls (37.5% vs. 50% vs. 0%; p = 0.010), and had abnormal gait on examination (71.4% vs. 66.0% vs. 14.3%; p = 0.017) was greater in those with low and intermediate frequencies. DISCUSSION: Slow tremor electromyography frequencies (<13 Hz) may characterize a substantial proportion of patients labeled as OT. These subjects may have greater gait involvement and higher likelihood of falls leading to earlier presentation to subspecialty care.
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