Is your heart functioning properly? There is a test which can measure this, which is often recommended by medical professionals. Ejection fraction (EF) is a measurement, expressed as a percentage, of ...

In this prospective, multicenter clinical trial, we randomly assigned patients with symptomatic, drug-resistant atrial fibrillation, an ejection fraction of 40% or less, and New York Heart Association ...

SENIORS is also the first major trial to test beta blockers in patients with preserved ejection fractions and showed similar benefits of nebivolol in this population as seen in patients with reduced ...