Atrial fibrillation(AF)is a major risk factor for stroke,exerting a significant influence on stroke progression and prognosis.Paroxysmal atrial fibrillation detected after stroke(PAFDAS)has attracted considerable attention due to its key role in stroke onset,progression,and recurrence.Studies show that extending the duration of electrocardiographic monitoring can increase detection rate of PAFDAS.Compared to patients with known atrial fibrillation before stroke,those with PAFDAS exhibit better clinical outcomes,including lower risks of bleeding and mortality.However,there still remains controversy regarding anticoagulant therapy for secondary prevention in PAFDAS patients.Current evidence indicates that with regard to clinical outcomes,anticoagulant drugs does not demonstrate significant superiority over antiplatelet drugs,while concurrently posing an elevated risk of bleeding complications.Consequently,further research is warranted to establish optimal preventive strategies.This review focuses on examining the diagnostic criteria,analyzing the advantages and limitations of each electrocardiographic monitoring session,discussing the clinical outcomes of PAFDAS,with the goal of enhancing clinical recognition of PAFDAS.

Atrial fibrillation(AF)is a major risk factor for stroke,exerting a significant influence on stroke progression and prognosis.Paroxysmal atrial fibrillation detected after stroke(PAFDAS)has attracted considerable attention due to its key role in stroke onset,progression,and recurrence.Studies show that extending the duration of electrocardiographic monitoring can increase detection rate of PAFDAS.Compared to patients with known atrial fibrillation before stroke,those with PAFDAS exhibit better clinical outcomes,including lower risks of bleeding and mortality.However,there still remains controversy regarding anticoagulant therapy for secondary prevention in PAFDAS patients.Current evidence indicates that with regard to clinical outcomes,anticoagulant drugs does not demonstrate significant superiority over antiplatelet drugs,while concurrently posing an elevated risk of bleeding complications.Consequently,further research is warranted to establish optimal preventive strategies.This review focuses on examining the diagnostic criteria,analyzing the advantages and limitations of each electrocardiographic monitoring session,discussing the clinical outcomes of PAFDAS,with the goal of enhancing clinical recognition of PAFDAS.