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What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 5 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 5 · 55.6%Low 2 · 22.2%Moderate 2 · 22.2%High 0 · 0%

TDC vs medical therapy

Secondary outcome:total serious adverse events at the end of · people with patent foramen ovale and a history of cryptogenic stroke or transient ischemic attack

TDC showed no clear difference in secondary outcome:total serious adverse events at the end of compared with medical therapy (low certainty).

1 finding from 1 review

tDCS vs active control

Dropouts, adverse events and deaths during intervention phase Numbers of dropouts, adverse events and deaths from all causes · people with stroke

tDCS showed no clear difference in secondary outcome measure: dropouts, adverse events and deaths… compared with any type of active control intervention (moderate certainty).

1 finding from 1 review

tDCS vs placebo or control

Dropouts, adverse events and deaths during intervention phase Numbers of dropouts, adverse events and deaths from all causes · people with stroke

tDCS showed no clear difference in secondary outcome measure: dropouts, adverse events and deaths… compared with any type of placebo or passive control intervention (moderate certainty).

1 finding from 1 review