In order to understand the risks and benefits of edoxaban use in a real-world clinical setting in the Non valvular Atrial Fibrillation (NVAF) indication, Daiichi-Sankyo proposed this non-interventional study to gain insight into the safety (bleeding, liver adverse events, all-cause mortality and other drug related adverse events) and efficacy of edoxaban use in non-preselected patients with NVAF.