Cochrane · systematic review · CD013765

Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial fibrillation

Bray, JJH, Warraich, M, Whitfield, MG, et al. · Cochrane Database of Systematic Reviews · 2023 · Cochrane Library

HeartAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
24
current version
GRADE rated
7
No studies
10
Included studies
NR
No studies 10 · 41.7%Ungraded 7 · 29.2%Very low 3 · 12.5%Low 3 · 12.5%Moderate 1 · 4.2%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Class I and/or III antiarrhythmics versus control for maintaining sinus rhythm after catheter ablation of atrial fibrillation

Population: Human trial participants undergoing ablation for atrial fibrillation
8 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes at > 3 to 6 months after ablation
Class I and/or III antiarrhythmics vs control
no estimate extractedNRNo studies
Recurrence of atrial tachyarrhythmias
Class I and/or III antiarrhythmics vs control
RR 0.85 [0.78, 0.93]5 studies · 2591 participantsModerate
Downgraded: risk of bias
Adverse events: thromboembolic events
Class I and/or III antiarrhythmics vs control
Peto OR 0.96 [0.06, 15.5]1 study · 212 participantsVery low
Downgraded: risk of bias, imprecision
Adverse events: myocardial infarction
Class I and/or III antiarrhythmics vs control
no estimate extracted3 participantsUngraded
Adverse events: new diagnosis of heart failure
Class I and/or III antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: requirement for 1 or more hospitalisations for atrial tachyarrhythmia
Class I and/or III antiarrhythmics vs control
no estimate extracted3 participantsUngraded
All‐cause mortality
Class I and/or III antiarrhythmics vs control
Peto OR 1 [0.06, 16.24]1 study · 90 participantsLow
Downgraded: risk of bias, imprecision
Requirement for 1 or more repeat ablations
Class I and/or III antiarrhythmics vs control
no estimate extracted3 participantsUngraded

Class I antiarrhythmics versus control for maintaining sinus rhythm after catheter ablation of atrial fibrillation

Population: Human trial participants undergoing ablation for atrial fibrillation
8 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes at > 3 to 6 months after ablation
Class I antiarrhythmics vs control
no estimate extractedNRNo studies
Recurrence of atrial tachyarrhythmias
Class I antiarrhythmics vs control
RR 0.54 [0.25, 1.19]1 study · 125 participantsLow
Downgraded: imprecision
Adverse events: thromboembolic events
Class I antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: myocardial infarction
Class I antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: new diagnosis of heart failure
Class I antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: requirement for 1 or more hospitalisations for atrial tachyarrhythmia
Class I antiarrhythmics vs control
no estimate extracted3 participantsUngraded
All‐cause mortality
Class I antiarrhythmics vs control
no estimate extractedNRNo studies
Requirement for 1 or more repeat ablation
Class I antiarrhythmics vs control
no estimate extracted3 participantsUngraded

Class III antiarrhythmics versus control for maintaining sinus rhythm after catheter ablation of atrial fibrillation

Population: Human trial participants undergoing ablation for atrial fibrillation
8 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes at > 3 to 6 months after ablation
Class III antiarrhythmics vs control
no estimate extractedNRNo studies
Recurrence of atrial tachyarrhythmias
Class III antiarrhythmics vs control
RR 0.82 [0.62, 1.09]2 studies · 318 participantsLow
Downgraded: risk of bias, imprecision
Adverse events: thromboembolic events
Class III antiarrhythmics vs control
Peto OR 0.96 [0.06, 15.5]1 study · 212 participantsVery low
Downgraded: risk of bias, imprecision
Adverse events: myocardial infarction
Class III antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: new diagnosis of heart failure
Class III antiarrhythmics vs control
no estimate extractedNRNo studies
Adverse events: requirement for 1 or more hospitalisations for atrial tachyarrhythmia
Class III antiarrhythmics vs control
no estimate extracted3 participantsUngraded
All‐cause mortality
Class III antiarrhythmics vs control
Peto OR 0.13 [0, 6.57]1 study · 212 participantsVery low
Downgraded: risk of bias, imprecision
Requirement for 1 or more repeat ablation
Class III antiarrhythmics vs control
no estimate extracted3 participantsUngraded