Post-Stroke Anticoagulation Timing
Operationalizes the ELAN trial timing framework within the broader AHA/ASA 2026 recommendation for earlier DOAC initiation in carefully selected AF-related stroke or TIA.
Inclusion
Next steps
Trials informing this pathway
Frequently asked questions
When should anticoagulation be started after stroke with atrial fibrillation?
The 2026 AHA/ASA guideline gives a broad Class 2a recommendation that earlier DOAC initiation is reasonable in carefully selected patients with AF-related stroke. NeuroWiki operationalizes that recommendation using the ELAN trial framework: TIA/minor/moderate events within 48 hours, and major stroke on day 6–7, with a later comparator of day 3–4 for TIA/minor, day 6–7 for moderate, and day 12–14 for major stroke.
What is the ELAN trial and why does it matter?
The ELAN trial (2023, NEJM) randomized AF stroke patients to earlier versus later DOAC initiation and found that earlier treatment was low risk, with no excess symptomatic intracranial hemorrhage. It matters because it provides the specific timing framework many clinicians now use to operationalize the broader AHA/ASA recommendation for earlier anticoagulation.
Can anticoagulation be started if there is hemorrhagic transformation?
Hemorrhagic infarction (HI1, HI2) on the Heidelberg classification is generally not a contraindication to anticoagulation initiation but may prompt a short delay. Parenchymal hemorrhage (PH1, PH2) warrants postponing anticoagulation until imaging stability is confirmed, typically at 7+ days.