Which ejection fraction type has a higher AMI risk after acute decompensated HF?

Patients with mildly reduced ejection fraction after acute decompensated heart failure may have a higher risk of AMI than those with an ejection fraction of 40% of lower, according to a study in BMC Cardiovascular Disorders.
Doctors in Taiwan conducted a retrospective cohort study of adults with acute decompensated heart failure (ADHF) discharged from the Chang Gung Memorial Hospital medical system from 2005-19 to compare outcomes between those with preserved, mildly reduced and reduced ejection fractions.