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Pulmonary artery pressure monitoring

What is heart failure?

Heart failure is a long-term condition in which the heart muscle can’t pump enough oxygen-rich blood to meet your body’s needs. Signs and symptoms of heart failure can include:

Swelling of the feet, ankles and legs


Shortness of breath

shortness of breath

Weight gain

weight gain

Feeling overly tired

overly tired

NYHA Classes of heart failure

Heart failure is a progressive condition, which means the heart gets weaker over time. It’s often called a “silent progression” because you may not notice the signs of worsening disease. The classes of heart failure are:

Class 1

No symptoms or limitations to physical activity.

Class 2

Slight limitations of physical activity. Comfortable at rest. Ordinary physical activity results in feeling tired and having shortness of breath.

Class 3

Significant limitations such as shortness of breath and exhaustion from walking in even mild physical activity. Comfortable only at rest.

Class 4

Unable to carry on any physical activity without discomfort. Tired and short of breath even at rest.

Class IV

Worried about heart failure?

Take an important step toward taking control of your heart failure. Take action early. Subscribe to our newsletter to understand and explore treatment options and find the right specialist and clinic to support your goal of a healthier heart.

Check your symptoms and see why early treatment is your best option.

For common questions and concerns, read our Frequently Asked Questions.

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