期刊
MOVEMENT DISORDERS CLINICAL PRACTICE
卷 9, 期 6, 页码 805-815出版社
WILEY
DOI: 10.1002/mdc3.13501
关键词
tremor; dystonia; levodopa
Holmes' tremor is a low-frequency tremor characterized by a combination of rest, posture, and action components. It predominantly affects male patients and is often associated with dystonia. Neuroimaging findings show involvement of various brain regions. Most patients show a positive response to levodopa.
Background Holmes' tremor (HT) is a low-frequency tremor characterized by a combination of rest, posture, and action components. We are reporting the clinical features, neuroimaging findings, and levodopa responsiveness in 12 patients with HT. Cases The majority of the patients were male (11/12). Dystonia was observed in 10 patients and the remaining two patients had head tremor, a forme-fruste of cervical dystonia. The underlying etiologies were vascular (n = 8), head trauma (n = 2), and tumor resection (n = 2). Neuroimaging showed isolated involvement of the midbrain in four, thalamus in two, and basal ganglia and cerebellum in one patient each. A combination of the lesion (thalamus and cerebellum = 2; cerebellopontine angle = 1, and cortical/subcortical = 1) was present in four patients. Levodopa responsiveness was seen in 75% of patients including one with levodopa-induced dyskinesia. Literature Review Of 139 patients from 49 studies, levodopa was tried in 123 patients. Improvement with levodopa was seen in 71 patients (57.72%). No improvement with levodopa was observed in 33 patients (26.82%) and details regarding therapeutic response were unavailable in 19 patients (15.44%). Conclusions Dystonia is an important clinical manifestation of HT. Levodopa responsiveness seen in the majority of the patients is consistent with the hypothesis that nigrostriatal pathway damage is crucial for the pathophysiology of HT.
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