期刊
JOURNAL OF THE NEUROLOGICAL SCIENCES
卷 375, 期 -, 页码 464-470出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jns.2017.02.036
关键词
Vegetative state; Minimally conscious state; Transcranial direct current stimulation; Neurorehabilitation
Objective: To evaluate effects of 5 sessions of transcranial direct current stimulation (tDCS) over the left dorsolateral prefrontal cortex in patients with prolonged disorders of consciousness (DOC). Methods: Seven patients in vegetative state (VS) and 6 in minimally conscious state (MCS), at >= 3 months after brain injury, were randomized into two groups: group 1 received one week of active tDCS and 1 week of sham stimulation, separated by 1 resting week; group 2 received active and sham stimulation in reverse order. We performed clinical and EEG evaluations before and after the first stimulation session, two hours after the last weekly stimulation, twice during the resting week, and during a 3-month follow-up. Results: We observed small changes of patients' conditions after the first tDCS session and immediately after the 5 active stimulations. Substantial clinical and EEG changes were observed in 5/13 patients (3 in MCS and 2 in VS) starting after entire (active and sham) stimulation protocol and further progressing during the next months. No baseline features distinguished patients who improved from patients who did not improve. Conclusions: Repeated tDCS did not exert remarkable short-term clinical and EEG effects in patients with prolonged DOC. Further studies should ascertain whether tDCS might promote clinical recovery in the longterm period. (C) 2017 Elsevier B.V. All rights reserved.
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