There are three main aims in this study: [1] to describe trends in emergency admissions for heart failure and subsequent readmissions within 30 days; [2] to analyse whether these trends vary by age, sex, ethnic group or deprivation; [3] to establish key predictive factors for 30-day readmissions split by cause and by time window. First draft of this manuscript is currently being written. Analysis for this project is underway, in collaboration with ARC East Midlands.