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Mov Disord Clin Pract. 2017 Sep-Oct;4(5):768-771. doi: 10.1002/mdc3.12498. Epub 2017 May 25.

Positional Tremor and its Treatment.

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Department of Neurology, Yale School of Medicine, Yale University, New Haven, CT, USA.
Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.



Positional tremors arise when a patient's tremor is brought on during specific positioning of the involved body part. They can be distinguished from postural tremor, wherein a patient's tremor is elicited in any posture, and from task-specific tremor, wherein a patient's tremor occurs only during a certain task.


We describe two cases of positional tremor that are markedly improved with botulinum toxin injection.


The term "positional" is a valuable descriptor for tremors. In patients with positional tremor, botulinum toxin may be beneficial for treatment. Lidocaine injection provides a transient way to test for the appropriateness of botulinum toxin injection in these patients.


action tremor; botulinum toxin; lidocaine; muscle spindle

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