Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

70 questions · 71 findings · 6 reviews · Neuromuscular

No studies found 20 · 28.2%GRADE not reported 5 · 7%Very low 21 · 29.6%Low 9 · 12.7%Moderate 13 · 18.3%High 3 · 4.2%

Brain‐derived neurotrophic factor vs placebo

Death or disability after 12 months · patients with Guillain‐Barré syndrome

It is very uncertain whether brain‐derived neurotrophic factor changes death or disability after 12 months compared with placebo (very low certainty).

1 finding from 1 review

Brain‐derived neurotrophic factor vs placebo

Participants with 1 or more serious adverse events · patients with Guillain‐Barré syndrome

It is very uncertain whether brain‐derived neurotrophic factor changes participants with 1 or more serious adverse events compared with placebo (very low certainty).

1 finding from 1 review

Cerebrospinal fluid filtration vs plasma exchange

Improvement in disability grade Defined as achievement of a specified degree of improvement · patients with Guillain‐Barré syndrome

It is very uncertain whether cerebrospinal fluid filtration changes improvement in disability grade Defined as achievement of a… compared with plasma exchange (very low certainty).

1 finding from 1 review