Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,017 questions · 1,061 findings · 131 reviews

No studies found 193 · 18.2%GRADE not reported 65 · 6.1%Very low 237 · 22.3%Low 325 · 30.6%Moderate 187 · 17.6%High 54 · 5.1%

IVIg vs PE

Number improved by 1 or more disability grades after 4 weeks · patients with Guillain‐Barré syndrome

IVIg showed no clear difference in number improved by 1 or more disability grades after 4 weeks compared with PE (moderate certainty).

1 finding from 1 review

IVIg vs PE

Dead or disabled after 12 months (48 weeks) · patients with Guillain‐Barré syndrome

IVIg showed no clear difference in dead or disabled after 12 months (48 weeks) compared with PE (low certainty).

1 finding from 1 review

IVIg vs PE

Relapse or treatment‐related fluctuation · patients with Guillain‐Barré syndrome

IVIg showed no clear difference in relapse or treatment‐related fluctuation compared with PE (low certainty).

1 finding from 1 review

IVIg vs PE

Patients in whom treatment was discontinued · patients with Guillain‐Barré syndrome

IVIg leads to lower participants in whom treatment was discontinued compared with PE (high certainty).

1 finding from 1 review

IVIg vs PE

Number of patients with adverse events attributed to treatment · patients with Guillain‐Barré syndrome

IVIg showed no clear difference in number of participants with adverse events attributed to treatment compared with PE (moderate certainty).

1 finding from 1 review

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Number of patients with postoperative nausea and vomiting (postoperative care unit) · paediatric

Induction and maintenance: sevoflurane + nitrous oxide (N2O) may leads to higher postoperative nausea and vomiting compared with propofol + N2O (low certainty).

1 finding from 1 review

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Postoperative behavioural disturbances Different scales · paediatric

It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes postoperative behavioural disturbances Different scales compared with propofol + N2O (very low certainty).

1 finding from 1 review

Induction and maintenance: sevoflurane + nitrous oxide (N2O) vs propofol + N2O

Intraoperative and postoperative respiratory and cardiovascular complications · paediatric

It is very uncertain whether induction and maintenance: sevoflurane + nitrous oxide (N2O) changes intraoperative and postoperative respiratory and cardiovascular… compared with propofol + N2O (very low certainty).

1 finding from 1 review