New York Heart Association (NYHA) classification

The New York Heart Association (NYHA) classification is a system doctors use to describe how heart failure affects a person's daily activities. It has four classes: - Class I indicates no limitations; you can perform normal activities without symptoms. - Class II means slight limitations; ordinary activities cause mild symptoms like fatigue or breathlessness. - Class III shows marked limitations; less than usual activity leads to symptoms. - Class IV signifies severe limitations; symptoms are present even at rest. This classification helps doctors assess severity and tailor treatment appropriately.