Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,092 questions · 3,199 findings · 339 reviews · Headline outcomes only

No studies found 714 · 22.3%GRADE not reported 181 · 5.7%Very low 695 · 21.7%Low 908 · 28.4%Moderate 568 · 17.8%High 133 · 4.2%

Chloral hydrate oral (100 mg/kg or 75 mg/kg) vs midazolam

Proportion of children who had sedation failure after 1 dose of sedative agent · children undergoing neurodiagnostic procedures

Chloral hydrate oral (100 mg/kg or 75 mg/kg) showed no clear difference in proportion of children who had sedation failure after 1 dose of… compared with midazolam (intranasal 0.2 mg/kg or oral 0.5 mg/kg) (low certainty).

1 finding from 1 review

Chloral hydrate oral (50 mg/kg or 100 mg/kg) vs dexmedetomidine oral (2 µg/kg or 3 µg/kg)

Proportion of children who required a further dose of either the same sedative agent or the addition of a different sedative agent · children undergoing neurodiagnostic procedures

The review found no eligible studies for this question.

1 finding from 1 review

Chloral hydrate oral (100 mg/kg or 75 mg/kg) vs midazolam

EEG sedative‐induced artefact · children undergoing neurodiagnostic procedures

Chloral hydrate oral (100 mg/kg or 75 mg/kg) leads to lower EEG sedative‐induced artefact compared with midazolam (intranasal 0.2 mg/kg or oral 0.5 mg/kg) (high certainty).

1 finding from 1 review

Chloral hydrate oral (100 mg/kg or 75 mg/kg) vs midazolam

Number of children with clinical adverse events (any) · children undergoing neurodiagnostic procedures

Chloral hydrate oral (100 mg/kg or 75 mg/kg) showed no clear difference in number of children with clinical adverse events (any) compared with midazolam (intranasal 0.2 mg/kg or oral 0.5 mg/kg) (low certainty).

1 finding from 1 review

Chloral hydrate oral (50 mg/kg or 100 mg/kg) vs dexmedetomidine oral (2 µg/kg or 3 µg/kg)

Proportion of children who had sedation failure or inadequate level of sedation · children undergoing neurodiagnostic procedures

Chloral hydrate oral (50 mg/kg or 100 mg/kg) showed no clear difference in proportion of children who had sedation failure or inadequate level… compared with dexmedetomidine oral (2 µg/kg or 3 µg/kg) (moderate certainty).

1 finding from 1 review

Chloral hydrate oral (50 mg/kg or 100 mg/kg) vs dexmedetomidine oral (2 µg/kg or 3 µg/kg)

Number of children with clinical adverse events (any) · children undergoing neurodiagnostic procedures

Chloral hydrate oral (50 mg/kg or 100 mg/kg) may leads to higher number of children with clinical adverse events (any) compared with dexmedetomidine oral (2 µg/kg or 3 µg/kg) (low certainty).

1 finding from 1 review

Oral calcium vs vitamin C

Frequency of leg cramps after treatment: never · treating leg cramps in pregnancy

It is very uncertain whether oral calcium changes frequency of leg cramps after treatment: never compared with oral vitamin C (very low certainty).

1 finding from 1 review

Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation

Recurrent DVT (3 to 12 months) · participants with diagnosed DVT

Oral DTIs showed no clear difference in recurrent DVT (7 months) compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review

Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation

Non‐fatal PE (3 to 12 months) · participants with diagnosed DVT

Oral DTIs showed no clear difference in non‐fatal PE (7 months) compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review

Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation

All‐cause mortality (7 months) · participants with diagnosed DVT

Oral DTIs showed no clear difference in all‐cause mortality (7 months) compared with conventional anticoagulation (moderate certainty).

1 finding from 1 review