期刊
STEREOTACTIC AND FUNCTIONAL NEUROSURGERY
卷 91, 期 1, 页码 18-23出版社
KARGER
DOI: 10.1159/000342491
关键词
Deep brain stimulation; Thalamotomy; Tremor
Background: As the number of deep brain stimulation (DBS) surgeries increases, complications from malpositioned electrodes, tolerance to stimulation and loss of efficacy have also increased. Our objective was to assess thalamotomy as a salvage treatment option after ineffective DBS. Methods:A retrospective chart analysis of patients who underwent ipsilateral stereotactic thalamotomy after an ineffective ventrointermediate nucleus DBS procedure was undertaken. Patient outcome was based on follow-up visit chart notes, and a nonvalidated patient telephone questionnaire to assess patients' perception of tremor and functional ability after thalamotomy. Results: Six patients with essential tremor and 1 with tremor-predominant Parkinson's disease met our inclusion criteria. Thalamotomies were undertaken for ineffective DBS due to dysarthria and paresthesias with programming in 2 patients, tremor that failed to respond to increased DBS despite a lack of side effects in 2 patients, malpositioned electrode in 2 patients, and sudden loss of DBS efficacy following eye surgery in 1 patient. Following thalamotomy, 3 patients reported improvement in symptoms and function, 3 patients reported improvement in symptoms that were not reflected in functional improvement, and 1 patient reported no improvement in symptoms or function. Conclusion: Thalamotomy may provide a viable salvage solution in patients who fail to respond to DBS due to complications such as malpositioned electrodes, tolerance to stimulation or loss of efficacy. Copyright (C) 2012 S. Karger AG, Basel
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