priors.science/reviews/atrial-fibrillation-stroke-prevention

Atrial Fibrillation Stroke Prevention

The current evidence on 21 claims, ordered from most established to most contested. Each score is the panel’s evidence certainty — how firmly the literature supports the claim as stated.

21claims tracked
382primary papers reviewed
30 May 2026latest evidence review
Weeklyre-scored against new papers
4 Established · 12 Likely · 5 Uncertain · 0 Doubtful  |  four-reviewer panel · PICO Framework
SignalClaimStandingEvidence certaintyCorpus
StableDirect oral anticoagulants lower intracranial haemorrhage risk versus warfarin in atrial fibrillationAnticoagulationEstablished97%20
StableDirect oral anticoagulants reduce stroke versus warfarin in atrial fibrillationAnticoagulationEstablished96%20
StableCHA2DS2-VASc predicts atrial fibrillation stroke riskRisk StratificationEstablished92%20
StableAblation reduces atrial fibrillation recurrence versus antiarrhythmic drugsAblationEstablished89%20
StableEarly oral anticoagulation after atrial fibrillation stroke is safeAnticoagulationLikely83%14
StableSurgical left atrial appendage occlusion reduces strokeLaa OcclusionLikely81%18
StableEarly rhythm control reduces atrial fibrillation eventsRhythm VS RateLikely80%20
StableAblation improves left ventricular function in heart failure with reduced ejection fractionAblationLikely79%20
StableDirect oral anticoagulants safer than vitamin K antagonists in atrial fibrillation with chronic kidney diseaseAF CKDLikely78%15
StableOral anticoagulation reduces stroke in atrial fibrillation with heart failure with reduced ejection fractionAF Heart FailureLikely78%19
StableSubclinical atrial fibrillation thromboembolic riskSubclinical AFLikely76%20
StableApixaban reduces stroke in subclinical atrial fibrillationSubclinical AFLikely74%17
StableOral anticoagulation reduces stroke in atrial fibrillation with chronic kidney diseaseAnticoagulationLikely72%16
StableNet oral anticoagulation benefit in subclinical atrial fibrillationSubclinical AFLikely68%18
StableFemale sex as a stroke risk modifier in atrial fibrillationRisk StratificationLikely66%20
StableCHA2DS2-VA versus CHA2DS2-VASc for stroke predictionRisk StratificationLikely66%15
StableOral anticoagulation discontinuation after atrial fibrillation ablationAblationUncertain55%20
StableRhythm control in atrial fibrillation with heart failure with preserved ejection fractionAF Heart FailureUncertain53%17
StableRhythm control benefit weaker in older atrial fibrillation patientsRhythm VS RateUncertain53%20
StableOral anticoagulation net benefit in atrial fibrillation on dialysisAF CKDUncertain51%15
StablePercutaneous left atrial appendage occlusion versus oral anticoagulation for strokeLaa OcclusionUncertain48%18
Standing — what the evidence certainty means
Established≥ 85%Strong, consistent evidence. Unlikely to change.
Likely65–84%Well supported, with some gaps or indirect evidence.
Uncertain40–64%Mixed or limited evidence. Genuinely open.
Doubtful15–39%Little support; the weight of evidence leans against it.
Refuted< 15%The evidence contradicts it — confidently false as stated.
Recent signal
strengthenedNew evidence raised the certainty since the last review.
weakenedNew evidence lowered the certainty since the last review.
newA claim added to the review recently.
StableNo recent change to the standing.
Standing, evidence certainty and corpus are always shown. The study behind each move, why it moved, and the sceptic’s challenge are delivered to subscribers.
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