“…To the Editor: Dr Kea and colleagues highlight a key issue that hampers ED oral anticoagulant (OAC) prescribing: lack of an integrated care-delivery system. 1 Although in Ontario we also provide follow-up to 85% of patients with primary diagnoses of atrial fibrillation (AF) who are discharged from the emergency department, 2,3 this does not occur secondary to any formal system, unlike at Kaiser Permanente. Instead, the task of arranging follow-up care is given to the patient; patients themselves act as the conduit between the emergency setting and primary care.…”