Post-stroke movement syndromes

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Post-stroke movement disorders Abnormal movements and other associated stroke features • Dystonia can involve the ipsilateral face, arm and leg (hemidystonia) or can be segmental or focal – Focal dystonia can affect the hand (most commonly), foot, facial or othere muscles – Dystonia can be associated with abnormal movements such as jerks (dystonic myoclonus),tremor like (dystonic tremor) or athetoid movements. – The abnormal twisting movements of dystonia are cased by cocontraction of agonist and antagonist muscles and voluntary movements worsens this. – In contrast to post-stroke spasticity, which is associated with muscle weakness and increased inhibitory impulses, dystonia is associated with muscle overactivity caused by reduced inhibition at many levels of the motor system
Post-stroke movement disorders Abnormal movements and other associated stroke features • Tremor has been observed to occur most commonly in a multifocal or segmental dystribution. Most studies have found that the tremors generally occur on action; however, some exhibit a mixture of rest, postural or kinetic coponents. – The term „rubral” or midbrain tremor has been used to describe a resting tremor that becomes more severe on maintaining a posture and most severe at intention. – The involvement of the red rubber nucleus has not always been identyfied.
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Post-stroke movement syndromes

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