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Evidence found and GRADE certainty

4,587 questions · 5,761 findings · 495 reviews

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No studies found 1,011 · 17.5%GRADE not reported 1,797 · 31.2%Very low 1,100 · 19.1%Low 1,052 · 18.3%Moderate 649 · 11.3%High 152 · 2.6%

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Class III antiarrhythmics vs control

Recurrence of atrial tachyarrhythmias · Human trial participants undergoing ablation for atrial fibrillation

Class III antiarrhythmics showed no clear difference in recurrence of atrial tachyarrhythmias compared with control (low certainty).

1 finding from 1 review

Class III antiarrhythmics vs control

Adverse events: thromboembolic events · Human trial participants undergoing ablation for atrial fibrillation

It is very uncertain whether class III antiarrhythmics changes adverse events: thromboembolic events compared with control (very low certainty).

1 finding from 1 review

Class I and/or III antiarrhythmics vs control

Recurrence of atrial tachyarrhythmias · Human trial participants undergoing ablation for atrial fibrillation

Class I and/or III antiarrhythmics probably leads to lower recurrence of atrial tachyarrhythmias compared with control (moderate certainty).

1 finding from 1 review

Class I and/or III antiarrhythmics vs control

Adverse events: thromboembolic events · Human trial participants undergoing ablation for atrial fibrillation

It is very uncertain whether class I and/or III antiarrhythmics changes adverse events: thromboembolic events compared with control (very low certainty).

1 finding from 1 review

Intranasal steroid spray vs placebo

Adverse event: systemic corticosteroid side effects · children aged 6 months to 12 years with otitis media with effusion (OME)

It is very uncertain whether topical (intranasal) steroids changes adverse event: systemic corticosteroid side effects compared with placebo (very low certainty).

1 finding from 1 review