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Transcranial direct current stimulation (tDCS) for improving aphasia in patients with aphasia after stroke

Overview of attention for article published in Cochrane database of systematic reviews, May 2015
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  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (94th percentile)
  • Good Attention Score compared to outputs of the same age and source (79th percentile)

Mentioned by

blogs
1 blog
twitter
43 tweeters
facebook
1 Facebook page

Citations

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77 Dimensions

Readers on

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221 Mendeley
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Title
Transcranial direct current stimulation (tDCS) for improving aphasia in patients with aphasia after stroke
Published in
Cochrane database of systematic reviews, May 2015
DOI 10.1002/14651858.cd009760.pub3
Pubmed ID
Authors

Bernhard Elsner, Joachim Kugler, Marcus Pohl, Jan Mehrholz

Abstract

Stroke is one of the leading causes of disability worldwide and aphasia among survivors is common. Current speech and language therapy (SLT) strategies have only limited effectiveness in improving aphasia. A possible adjunct to SLT for improving SLT outcomes might be non-invasive brain stimulation by transcranial direct current stimulation (tDCS) to modulate cortical excitability and hence to improve aphasia. To assess the effects of tDCS for improving aphasia in people who have had a stroke. We searched the Cochrane Stroke Group Trials Register (November 2014), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, November 2014), MEDLINE (1948 to November 2014), EMBASE (1980 to November 2014), CINAHL (1982 to November 2014), AMED (1985 to November 2014), Science Citation Index (1899 to November 2014) and seven additional databases. We also searched trials registers and reference lists, handsearched conference proceedings and contacted authors and equipment manufacturers. We included only randomised controlled trials (RCTs) and randomised controlled cross-over trials (from which we only analysed the first period as a parallel group design) comparing tDCS versus control in adults with aphasia due to stroke. Two review authors independently assessed trial quality and risk of bias, and extracted data. If necessary, we contacted study authors for additional information. We collected information on dropouts and adverse events from the trials. We included 12 trials involving 136 participants for qualitative assessment. None of the included studies used any formal outcome measure for our primary outcome measure of functional communication - that is, measuring aphasia in a real-life communicative setting. We did a meta-analysis of six trials with 66 participants of correct picture naming as our secondary outcome measure, which demonstrated that tDCS may not enhance SLT outcomes (standardised mean difference (SMD) 0.37, 95% CI -0.18 to 0.92; P = 0.19; I² = 0%; inverse variance method with random-effects model; with a higher SMD reflecting benefit from tDCS). We found no studies examining the effect of tDCS on cognition in stroke patients with aphasia. We did not find reported adverse events and the proportion of dropouts was comparable between groups. Currently there is no evidence of the effectiveness of tDCS (anodal tDCS, cathodal tDCS and bihemispheric tDCS) versus control (sham tDCS) for improving functional communication, language impairment and cognition in people with aphasia after stroke. Further RCTs are needed in this area to determine the effectiveness of this intervention. Authors of future research should adhere to the CONSORT Statement.

Twitter Demographics

The data shown below were collected from the profiles of 43 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 221 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Italy 2 <1%
Germany 1 <1%
United States 1 <1%
Unknown 217 98%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 47 21%
Student > Master 37 17%
Researcher 25 11%
Student > Ph. D. Student 18 8%
Professor 14 6%
Other 35 16%
Unknown 45 20%
Readers by discipline Count As %
Psychology 58 26%
Medicine and Dentistry 42 19%
Neuroscience 25 11%
Nursing and Health Professions 15 7%
Social Sciences 5 2%
Other 21 10%
Unknown 55 25%

Attention Score in Context

This research output has an Altmetric Attention Score of 35. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 26 June 2019.
All research outputs
#785,229
of 19,096,926 outputs
Outputs from Cochrane database of systematic reviews
#1,887
of 11,929 outputs
Outputs of similar age
#12,126
of 239,561 outputs
Outputs of similar age from Cochrane database of systematic reviews
#49
of 233 outputs
Altmetric has tracked 19,096,926 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 11,929 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 27.0. This one has done well, scoring higher than 84% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 239,561 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 94% of its contemporaries.
We're also able to compare this research output to 233 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 79% of its contemporaries.