Summary of Evidence-Based Guideline Update: Prevention of Stroke in Nonvalvular Atrial Fibrillation. Report of the Guideline Development Subcommittee of the American Academy of Neurology

Study Questions:

To update the 1998 American Academy of Neurology (AAN) practice parameter for stroke prevention in atrial fibrillation (AF), the investigators posed the following: How often do various monitoring strategies identify AF in patients with cryptogenic stroke? Which therapies reduce stroke risk and severity with the least risk of hemorrhage?