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Delayed onset hand tremor caused by cerebral infarction
1Department of Neurology, University of Ulsan, Asan Medical Center, Seoul, Korea.
Delayed-onset hand tremor can occur after a stroke affecting specific brain areas. This movement disorder, though rare, should be recognized in stroke patients with tremors.
Area of Science:
- Neurology
- Neuroscience
- Movement Disorders
Background:
- Hand tremor is an uncommon symptom following a stroke.
- Cerebral infarction can manifest in various ways, including movement abnormalities.
Observation:
- Three patients presented with delayed-onset hand tremor after experiencing a cerebral infarction.
- The infarctions were located contralaterally to the tremor, specifically in the caudate nucleus (two cases) and thalamus (one case).
- The observed tremors shared characteristics with parkinsonian tremor but exhibited less monotony.
Findings:
- Cerebral infarction, particularly in the basal ganglia and thalamus, can lead to delayed-onset hand tremor.
- The tremor's semiology suggests a specific pattern related to the location of the ischemic event.
Implications:
- Clinicians should consider delayed-onset hand tremor as a potential consequence of cerebral infarction.
- This finding expands the spectrum of movement disorders associated with stroke.
- Further research is warranted to understand the pathophysiology and prevalence of stroke-induced tremors.
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