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Effect of non-invasive brain stimulation on post-stroke cognitive impairment: a meta-analysis. | LitMetric

Effect of non-invasive brain stimulation on post-stroke cognitive impairment: a meta-analysis.

Front Neurol

Department of Rehabilitation Medicine, Zibo Central Hospital, Zibo, Shandong, China.

Published: October 2024

AI Article Synopsis

  • Previous studies indicate that both rTMS (repetitive transcranial magnetic stimulation) and tDCS (transcranial direct current stimulation) may effectively treat cognitive impairment in stroke patients, but results have been mixed, prompting this study to conduct a meta-analysis.
  • The meta-analysis used data from various studies published until February 2024 and analyzed it using STATA software, aiming to identify the overall impact of rTMS and tDCS on cognitive function in post-stroke cognitive impairment (PSCI) patients.
  • Results showed that both therapies had a positive effect on cognitive function, with rTMS significantly improving attention, language, and memory, while tDCS notably enhanced executive and visuospatial functions, though

Article Abstract

Background: Previous studies have suggested that repetitive transcranial magnetic stimulation (rTMS) may be an effective and safe alternative treatment for post-stroke cognitive impairment (PSCI). Similarly, the application of transcranial direct current stimulation (tDCS) during stroke rehabilitation has been shown to improve cognitive function in PSCI patients. However, there have been conflicting results from some studies. Therefore, this study aims to conduct a meta-analysis to evaluate the effects of tDCS and rTMS on PSCI.

Methods: The meta-analysis search for articles published from the initial availability date to 5 February 2024 in databases. The extracted study data were entered into STATA 12.0 software for statistical analysis.

Results: This meta-analysis provides evidence that both rTMS and tDCS have a positive impact on general cognitive function in PSCI patients [immediate effect of rTMS: standard mean difference (SMD) = 2.58, 95% confidence interval (CI) = 1.44 to 3.71; long-term effect of rTMS: SMD = 2.33, 95% CI = 0.87-3.78; immediate effect of tDCS: SMD = 2.22, 95% CI = 1.31-3.12]. Specifically, rTMS was found to significantly improve attention, language, memory, and visuospatial functions, while it did not show a significant therapeutic effect on executive function (attention: SMD = 3.77, 95% CI = 2.30-5.24; executive function: SMD = -0.52, 95% CI = -3.17-2.12; language: SMD = 3.43, 95% CI = 1.50-5.36; memory: SMD = 3.52, 95% CI = 1.74-5.30; visuospatial function: SMD = 4.71, 95% CI = 2.61-6.80). On the other hand, tDCS was found to significantly improve executive and visuospatial functions but did not show a significant improvement in attention function and memory (attention: SMD = 0.63, 95% CI = -0.30-1.55; executive function: SMD = 2.15, 95% CI = 0.87-3.43; memory: SMD = 0.99, 95% CI = -0.81-2.80; visuospatial function: SMD = 2.64, 95% CI = 1.04-4.23).

Conclusion: In conclusion, this meta-analysis demonstrates that both rTMS and tDCS are effective therapeutic techniques for improving cognitive function in PSCI. However, more large-scale studies are needed to further investigate the effects of these techniques on different cognitive domains in PSCI.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11521814PMC
http://dx.doi.org/10.3389/fneur.2024.1424792DOI Listing

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