Heart failure is classified into four stages — A through D — developed by the American College of Cardiology and American Heart Association. The higher the letter, the more severe the condition. Importantly, you can only move forward through the stages, but you may stay at one stage for many years.
Here's a quick breakdown Show Full Answer
Heart failure is classified into four stages — A through D — developed by the American College of Cardiology and American Heart Association. The higher the letter, the more severe the condition. Importantly, you can only move forward through the stages, but you may stay at one stage for many years.
Here's a quick breakdown of each stage:
- Stage A (Pre-Heart Failure): No diagnosis yet, but risk factors are present (e.g., high blood pressure, coronary artery disease, family history of heart disease)
- Stage B (Silent Heart Failure): Structural changes in the heart have occurred, but no symptoms are felt yet — often discovered through tests like an echocardiogram
- Stage C (Diagnosed Heart Failure): Heart failure has been diagnosed and symptoms are present, such as shortness of breath, fatigue, or swelling
- Stage D (Advanced Heart Failure): Severe symptoms that don't respond well to standard treatments, even at rest To determine which stage you're in, your doctor will assess your symptoms, medical history, and test results — such as an echocardiogram, which measures your ejection fraction (how much blood your heart pumps with each beat).
There is also a separate classification system based on symptom severity, rated 1 to 4, that your doctor may use alongside the A–D staging. Both systems help guide your treatment plan.
The best step is to have an open conversation with your cardiologist about your current stage and what it means for your care. Don't hesitate to ask questions at your next appointment!
August 15
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