Background: Volitional control of involuntary movements has so far been considered a hallmark of tic disorders. However, modulation of involuntary movements can also be observed in other hyperkinesias. Cases: Here, we present 6 patients with chorea able to suppress their involuntary movements, on demand. In 3 of them, surface electromyography was used to quantify degree of suppression and confirmed a reduction of muscle activity up to 68%, during volitional control. Conclusion: This observation represents a first step toward a description of a new clinical feature in choreic syndromes and an opportunity to redefine the role of volitional inhibition in hyperkinetic movement disorders.
Bonomo, R., Latorre, A., Balint, B., Smilowska, K., Rocchi, L., Rothwell, J., et al. (2020). Voluntary Inhibitory Control of Chorea: A Case Series. MOVEMENT DISORDERS CLINICAL PRACTICE, 7(3), 308-312 [10.1002/mdc3.12907].
Voluntary Inhibitory Control of Chorea: A Case Series
Bonomo R.
Primo
;
2020
Abstract
Background: Volitional control of involuntary movements has so far been considered a hallmark of tic disorders. However, modulation of involuntary movements can also be observed in other hyperkinesias. Cases: Here, we present 6 patients with chorea able to suppress their involuntary movements, on demand. In 3 of them, surface electromyography was used to quantify degree of suppression and confirmed a reduction of muscle activity up to 68%, during volitional control. Conclusion: This observation represents a first step toward a description of a new clinical feature in choreic syndromes and an opportunity to redefine the role of volitional inhibition in hyperkinetic movement disorders.File | Dimensione | Formato | |
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