Gonzalez-Loyola F, et al. - In this community-based cohort study, researchers intended to evaluate mortality in community-dwelling patients with stable heart failure (HF) related to atrial fibrillation (AF) and determine the relation of digoxin and diuretics with prognosis. Participants in the study were HF patients diagnosed between January 2010 and December 2014, who attended at any one of the 279 primary healthcare centers of the Catalan Institute of Health (Spain). In a large retrospective community-based cohort, an excess of mortality in HF patients with AF was found. In HF patients with AF, digoxin and diuretics did not affect mortality.