期刊
PARKINSONISM & RELATED DISORDERS
卷 108, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.parkreldis.2023.105317
关键词
Acquired dystonia; Deep brain stimulation; Globus pallidus internus; Hemidystonia; Meta -analysis; Subthalamic nucleus; Thalamus
This meta-analysis summarizes the data on deep brain stimulation (DBS) for hemidystonia and suggests that DBS can be considered as a treatment option for this condition. The posteroventral lateral GPi is the most commonly used target for stimulation.
Background: Deep brain stimulation (DBS) is now well established for the treatment of dystonic movement disorders. There is limited data, however, on the efficacy of DBS in hemidystonia. This meta-analysis aims to summarize the published reports on DBS for hemidystonia of different etiologies, to compare different stimu-lation targets, and to evaluate clinical outcome.Methods: A systematic literature review was performed on PubMed, Embase and Web of Science to identify appropriate reports. The primary outcome variables were the improvement in the Burke-Fahn-Marsden Dystonia Rating Scale movement (BFMDRS-M) and disability (BFMDRS-D) scores for dystonia.Results: Twenty-two reports (39 patients; 22 with pallidal stimulation, 4 with subthalamic stimulation, 3 with thalamic stimulation, and 10 with combined target stimulation) were included. Mean age at surgery was 26.8 years. Mean follow-up time was 31.72 months. An overall mean improvement of 40% in the BFMDRS-M score was achieved (range 0%-94%), which was paralleled by a mean improvement of 41% in the BFMDRS-D score. When considering a 20% cut-off for improvement, 23/39 patients (59%) would qualify as responders. Hemi-dystonia due to anoxia did not significantly improve with DBS. Several limitations of the results must be considered, most importantly the low level of evidence and the small number of reported cases.Conclusion: Based on the results of the current analysis, DBS can be considered as a treatment option for hem-idystonia. The posteroventral lateral GPi is the target used most often. More research is needed to understand the variability in outcome and to identify prognostic factors.
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