Isolated voice tremor (IVT)
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Isolated voice tremor (IVT). There is no associated limb or head tremor. Fully referenced neurology checklist.
Diagnostic criteria
- There is no associated limb or head tremor
- There are no other neurological com-morbidities
- Some authors consider it to be a variant of essential tremor
Voice structures involved
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Associated features
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Differential diagnosis: main causes of voice tremor
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Differential diagnosis: other causes of voice tremor
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Treatment
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References
- Torrecillas V, Dwenger K, Barkmeier-Kraemer JM. Classification of vocal tremor using updated consensus-based tremor classification criteria. Laryngoscope Investig Otolaryngol 2021; 6:261-276.
- Barkmeier-Kraemer JM. Isolated voice tremor: a clinical variant of essential tremor or a distinct clinical phenotype? Tremor Other Hyperkinet Mov (N Y) 2020; 10.
- Patel A, Frucht SJ. Isolated vocal tremor as a focal phenotype of essential tremor: a retrospective case review. J Clin Mov Disord 2015; 2:4.
- Paige C, Hopewell BL, Gamsarian V, Myers B, Patel P, Garrett CG, Francis DO. Characterizing the normative voice tremor frequency in essential vocal tremor. JAMA Otolaryngol Head Neck Surg 2018; 144:1169-1173.
- Perez KS, Ramig LO, Smith ME, Dromey C. The Parkinson larynx: tremor and videostroboscopic findings. J Voice 1996; 10:354-361.
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