نبذة مختصرة : Abstract Aims Cardiac amyloidosis (CA) is an under‐diagnosed cause of heart failure (HF) and has a worse prognosis than other forms of HF. The frequency of death or rehospitalization following discharge for acute heart failure (AHF) in CA (relative to other causes) has not been documented. The study aims to compare hospital readmission and death rates 90 days after discharge for AHF in patients with vs. without CA and to identify risk factors associated with these events in each group. Methods and results Patients with HF and CA (HF + CA+) were recruited from the ICREX cohort, after screening of their medical records. The cases were matched 1:5 by sex and age with control HF patients without CA (HF + CA−). There were 27 HF + CA + and 135 HF + CA− patients from the ICREX cohort included in the study. Relative to the HF + CA− group, HF + CA+ patients had a higher heart rate (P = 0.002) and N‐terminal prohormone of brain natriuretic peptide levels (P
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