The American Heart Association, American College of Cardiology and Heart Failure Society of America developed a classification of heart failure that divides heart failure into four stages.
The guidelines now give a class I (top-level) recommendation for continuing beta-blockers in noncardiac-surgery patients who are currently taking them for any ACC/AHA class I indication (e.g ...
The New York Heart Association (NYHA) functional class helps to classify congestive heart failure patients based on their symptoms. Class I: No symptoms of heart failure. Class II: Symptoms of ...