Symptom burden and secondary prevention in patients with left ventricular systolic dysfunction after acute myocardial infarction: a nationwide register-based study in Sweden

BACKGROUND: There is a lack of contemporary data describing patients with left ventricular (LV) systolic dysfunction post myocardial infarction (MI) in terms of symptom burden and secondary prevention measures. The aim of this study was to describe patients with various degrees of LV systolic dysfunction after a first MI, their symptom burden, quality of life and adherence to recommended secondary prevention measures in a nationwide patient material. METHODS: Patients (n=49 564) registered in the Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease registry between 2011 and 2018, diagnosed with a first acute MI, discharged alive and with no previous heart failure, were stratified by degree of LV systolic dysfunction. RESULTS: Compared with patients with normal ejection fraction (EF≥50%), patients with a reduced EF (