[Clinical features and short-term prognosis of Holmes' tremor].
2019
Objective
To explore the clinical characteristics and short-term prognosis of Holmes′ tremor (HT) patients.
Methods
The clinical and imaging data of HT patients in 5 teaching hospitals between January 2014 and January 2018 were retrospectively analyzed, and Fahn-Tolosa-Marin Tremor Rating Scale (TRS) was used to compare the clinical severity and short-term prognosis between the different subtypes.
Results
(1) The time from primary disease to tremor onset was 2 days to 20 months (median time 29 d) in 23 patients with HT enrolled, and the most common cause of HT was cerebrovascular disease (78.3%). (2) The most common involved locations were midbrain (65.2%), thalamus (47.8%) and cerebellum (30.4%). No significant difference in total TRS scores between the isolated lesion group (12 cases) and multiple lesions group (11 cases) (P=0.57), while the scores of the mesencephalic group (15 cases) was significantly higher than the non-mesencephalic group (8 cases) (P=0.00). (3) One case was treated with deep brain stimulation (DBS), while 22 cases were treated with medical therapy. Levodopa combined with clonazepam (7/12) and single levodopa (9/20) were partially effective. (4) At the 3-month follow-up after discharge, patients received DBS had good prognosis. Among the 22 patients treated with medicine, only 8 (36.4%) patients had good outcomes. The short-term prognosis was not significantly different between the isolated and multiple lesion groups (P=0.40), while it was worse in the mesencephalic group than the non-mesencephalic group (P=0.02).
Conclusion
The most common cause of HT is cerebrovascular disease, and primary lesions are midbrain, thalamus, and cerebellum. The pharmacologic agents are partially valid for disease control of HT and the short-term prognosis is poor, while the patients with mesencephalic involvement have more severe tremor and worse prognosis.
Key words:
Holmes′ tremor; Midbrain; Cerebrovascular disease; Levodopa; Deep brain stimulation
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