Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke

Background. Dysphagia is a common sequelae after stroke. Noninvasive brain stimulation (NIBS) is a tool that has been used in the rehabilitation process to modify cortical excitability and improve dysphagia. Objective. To systematically evaluate the effect of NIBS on dysphagia after stroke and compa...

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Main Authors: Lingling Li, Hailiang Huang, Yuqi Jia, Ying Yu, Zhiyao Liu, Xin Shi, Fangqi Wang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2021/3831472
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author Lingling Li
Hailiang Huang
Yuqi Jia
Ying Yu
Zhiyao Liu
Xin Shi
Fangqi Wang
author_facet Lingling Li
Hailiang Huang
Yuqi Jia
Ying Yu
Zhiyao Liu
Xin Shi
Fangqi Wang
author_sort Lingling Li
collection DOAJ
description Background. Dysphagia is a common sequelae after stroke. Noninvasive brain stimulation (NIBS) is a tool that has been used in the rehabilitation process to modify cortical excitability and improve dysphagia. Objective. To systematically evaluate the effect of NIBS on dysphagia after stroke and compare the effects of two different NIBS. Methods. Randomized controlled trials about the effect of NIBS on dysphagia after stroke were retrieved from databases of PubMed, Embase, Cochrane Library, Web of Science, CNKI, Wanfang Data, VIP, and CBM, from inception to June 2021. The quality of the trials was assessed, and the data were extracted according to the Cochrane Handbook for Systematic Reviews of Interventions. A statistical analysis was carried out using RevMan 5.3 and ADDIS 1.16.8. The effect size was evaluated by using the standardized mean difference (SMD) and a 95% confidence interval (CI). Results. Ultimately, 18 studies involving 738 patients were included. Meta-analysis showed that NIBS could improve the dysphagia outcome and severity scale (DOSS) score (standard mean difference SMD=1.44, 95% CI 0.80 to 2.08, P<0.05) and the water swallow test score (SMD=6.23, 95% CI 5.44 to 7.03, P<0.05). NIBS could reduce the standardized swallowing assessment (SSA) score (SMD=−1.04, 95% CI -1.50 to -0.58, P<0.05), the penetration-aspiration scale (PAS) score (SMD=−0.85, 95% CI -1.33 to -0.36, P<0.05), and the functional dysphagia scale score (SMD=−1.05, 95% CI -1.48 to -0.62, P<0.05). Network meta-analysis showed that the best probabilistic ranking of the effects of two different NIBS on the DOSS score is rTMS P=0.52>tDCS P=0.48, the best probabilistic ranking of the SSA score is rTMS P=0.72>tDCS P=0.28, and the best probabilistic ranking of the PAS score is rTMS P=0.68>tDCS P=0.32. Conclusion. Existing evidence showed that NIBS could improve swallowing dysfunction and reduce the occurrence of aspiration after stroke, and that rTMS is better than tDCS. Limited by the number of included studies, more large-sample, multicenter, double-blind, high-quality clinical randomized controlled trials are still needed in the future to further confirm the results of this research.
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spelling doaj-art-95dce12f523441e59aab036066dd15c82025-02-03T06:46:24ZengWileyNeural Plasticity1687-54432021-01-01202110.1155/2021/3831472Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after StrokeLingling Li0Hailiang Huang1Yuqi Jia2Ying Yu3Zhiyao Liu4Xin Shi5Fangqi Wang6College of Rehabilitation MedicineCollege of Rehabilitation MedicineCollege of Rehabilitation MedicineInnovative Institute of Chinese Medicine and PharmacyCollege of Rehabilitation MedicineCollege of Rehabilitation MedicineCollege of Rehabilitation MedicineBackground. Dysphagia is a common sequelae after stroke. Noninvasive brain stimulation (NIBS) is a tool that has been used in the rehabilitation process to modify cortical excitability and improve dysphagia. Objective. To systematically evaluate the effect of NIBS on dysphagia after stroke and compare the effects of two different NIBS. Methods. Randomized controlled trials about the effect of NIBS on dysphagia after stroke were retrieved from databases of PubMed, Embase, Cochrane Library, Web of Science, CNKI, Wanfang Data, VIP, and CBM, from inception to June 2021. The quality of the trials was assessed, and the data were extracted according to the Cochrane Handbook for Systematic Reviews of Interventions. A statistical analysis was carried out using RevMan 5.3 and ADDIS 1.16.8. The effect size was evaluated by using the standardized mean difference (SMD) and a 95% confidence interval (CI). Results. Ultimately, 18 studies involving 738 patients were included. Meta-analysis showed that NIBS could improve the dysphagia outcome and severity scale (DOSS) score (standard mean difference SMD=1.44, 95% CI 0.80 to 2.08, P<0.05) and the water swallow test score (SMD=6.23, 95% CI 5.44 to 7.03, P<0.05). NIBS could reduce the standardized swallowing assessment (SSA) score (SMD=−1.04, 95% CI -1.50 to -0.58, P<0.05), the penetration-aspiration scale (PAS) score (SMD=−0.85, 95% CI -1.33 to -0.36, P<0.05), and the functional dysphagia scale score (SMD=−1.05, 95% CI -1.48 to -0.62, P<0.05). Network meta-analysis showed that the best probabilistic ranking of the effects of two different NIBS on the DOSS score is rTMS P=0.52>tDCS P=0.48, the best probabilistic ranking of the SSA score is rTMS P=0.72>tDCS P=0.28, and the best probabilistic ranking of the PAS score is rTMS P=0.68>tDCS P=0.32. Conclusion. Existing evidence showed that NIBS could improve swallowing dysfunction and reduce the occurrence of aspiration after stroke, and that rTMS is better than tDCS. Limited by the number of included studies, more large-sample, multicenter, double-blind, high-quality clinical randomized controlled trials are still needed in the future to further confirm the results of this research.http://dx.doi.org/10.1155/2021/3831472
spellingShingle Lingling Li
Hailiang Huang
Yuqi Jia
Ying Yu
Zhiyao Liu
Xin Shi
Fangqi Wang
Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
Neural Plasticity
title Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
title_full Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
title_fullStr Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
title_full_unstemmed Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
title_short Systematic Review and Network Meta-Analysis of Noninvasive Brain Stimulation on Dysphagia after Stroke
title_sort systematic review and network meta analysis of noninvasive brain stimulation on dysphagia after stroke
url http://dx.doi.org/10.1155/2021/3831472
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