There isn't a single "normal range for heart failure" because heart failure itself involves abnormal function, but the key metric, Ejection Fraction (EF), defines its types: a healthy EF is typically 55-70%, while heart failure is categorized by EF levels, with ≤40% (HFrEF) indicating reduced pumping, 41-49% (HFmrEF) being mid-range, and ≥50% (HFpEF) showing a stiff heart that can't fill properly despite a normal-looking pump.
Ejection fraction is the percentage of blood the left ventricle pumps out with every beat. A normal, healthy ejection fraction is 55% to 65%. If it's higher or lower, that can indicate a heart problem. With systolic heart failure, the ejection fraction is usually less than 50%.
This means that more than 55% of the total blood in the left ventricle is pumped out with each heartbeat. You may be diagnosed with HFrEF when the ejection fraction is 40% or less. You may be diagnosed with heart failure with a mid-range ejection fraction when the ejection fraction is between 41 and 49%.
Left-Sided Heart Failure Symptoms
Heart failure with reduced ejection fraction (HFrEF) is typically defined as an LVEF of 40% or less. Heart failure with preserved ejection fraction (HFpEF) is usually defined as an LVEF of 50% or greater.
Worsening heart failure symptoms often involve increased shortness of breath (especially when lying down or sleeping), rapid weight gain from fluid buildup (like in legs, ankles, or abdomen), significant fatigue, a persistent cough with white/pink phlegm, increased swelling, heart palpitations, and mental confusion, signaling a need for prompt medical attention to prevent serious complications.
Less than 125 pg/mL if you're under 75 years old. Less than 450 pg/mL if you're over 75 years old.
Class II: You have some limits on physical activity. You're comfortable when resting but experience symptoms during ordinary physical activity. Class III: You're comfortable at rest, but most physical activity provokes symptoms. Class IV: You have symptoms of heart failure even when resting.
Heart failure (HF), also known as congestive heart failure (CHF), is a complex clinical syndrome characterized by the heart's inability to pump blood effectively due to structural or functional impairments.
While exercise will not necessarily reverse heart failure on its own, it has helped many patients improve their heart health when combined with other therapies.
The ejection fraction calculates how much blood is pumped out as a fraction of the total blood volume in the ventricle. Less than 50% ejection fraction is cause for concern, and a pacemaker can help.
Research estimates that more than half of all people with congestive heart failure will survive for 5 years after diagnosis. About 35% will survive for 10 years. However, in some cases, a person can extend their life expectancy through lifestyle changes, medications, and surgery.
You can improve your ejection fraction through lifestyle changes such as getting more physical activity, losing weight, taking daily rest periods, quitting smoking, stopping drinking alcohol, or reducing salt and excess fluids in your diet.
Tests you may have to diagnose heart failure include: blood tests – to check whether there's anything in your blood that might indicate heart failure or another illness. an electrocardiogram (ECG) – this records the electrical activity of your heart to check for problems.
Heart failure is a serious long-term condition that will usually continue to get slowly worse over time. It can severely limit the activities you're able to do and is often eventually fatal. But it's very difficult to tell how the condition will progress on an individual basis. It's very unpredictable.
The normal heart rate (between 60-80 bpm) is associated with the best outcomes, not lower is better. HR is a significant prognosis factor whether having AF or not. The relationship is mainly in patient with HFrEF.
Shortness of breath with activity or when lying down. Fatigue and weakness. Swelling in the legs, ankles and feet. Rapid or irregular heartbeat.
Some of the main medicines for heart failure include:
Doctors may also suggest an implantable cardioverter defibrillator and cardiac resynchronization therapy. Some of the most common symptoms of Stage C heart failure include, but are not limited to, the following: Nausea. Coughing and wheezing.
Chest discomfort or pain that lasts more than 15 minutes and does not improve with nitroglycerin or rest. It is important to monitor your weight. Weight gain is the first sign that your heart failure may be getting worse. Patients can gain up to 10 pounds of “extra” weight from fluid before feeling bad or swelling.
Symptoms of heart failure may include:
Sodium is one of the biggest culprits when it comes to worsening heart failure symptoms. Too much salt can make your body retain fluid, leading to swelling in your legs, ankles or abdomen and putting more strain on your heart. Be sure to check food labels for hidden sodium, and try to limit processed or salty foods.
BNP levels go up when the heart cannot pump the way it should. A result greater than 100 pg/mL is abnormal. The higher the number, the more likely heart failure is present and the more severe it is.
When euvolaemia is achieved, diuretics may be stopped or flexibly used in conjunction with a heart failure action plan in selected patients, allowing for further up-titration of the proven guideline-directed therapies. Furosemide (frusemide) is typically the first-line diuretic.