Abstract:Introduction:
The American Heart Association and European Society of cardiology guidelines reclassified heart failure according to left ventricular ejection fraction, recognizing patients with mid-range EF (mrEF; 40% to 49%) as a distinct group. However, studies on the clinical characteristics of mid-range EF patients and the occurrence of cardiovascular events in acute MI patients are insufficient.
Methods:
We categorized 6,553 patients with acute myocardial infarction (AMI… Show more
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