This document discusses the use of novel oral anticoagulants (NOACs) for stroke prevention in patients with atrial fibrillation (AF), particularly vulnerable populations. It notes that AF patients without anticoagulation have a 12.7% risk of ischemic stroke. Mortality after stroke is also higher for AF patients at 49.5% annually. While warfarin has been used, NOACs like dabigatran, rivaroxaban, apixaban and edoxaban were found to be as effective or more effective than warfarin in major clinical trials. The document recommends NOACs for AF patients who have had a stroke or other conditions that increase their risk of stroke according