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The heart works continuously to pump blood throughout the body. Like other organs, it can sometimes become inflamed. Heart inflammation happens when inflammation affects the heart muscle, the protective covering around the heart, or the inner lining of the heart.

Heart inflammation can have different causes and symptoms. Some cases are mild and improve with treatment, while others can affect how well the heart works. Knowing the warning signs can help you understand when medical attention may be needed.

What Is Heart Inflammation?

Heart inflammation is not one specific disease. It can affect different parts of the heart.

The three main conditions are:

• Myocarditis: Inflammation of the heart muscle.

• Pericarditis: Inflammation of the sac surrounding the heart.

• Endocarditis: Infection or inflammation of the inner lining of the heart, often involving the heart valves.

Although these conditions are different, they can cause similar symptoms, including chest pain, tiredness, and shortness of breath.

What Causes Heart Inflammation?

There are several possible causes of heart inflammation. Infections are one common cause. Some viral infections can affect the heart muscle, while bacterial infections can sometimes affect the heart valves.

Other possible causes include:

• Autoimmune conditions

• Certain medicines

• Inflammatory diseases

• Some medical treatments

• Certain bacterial or fungal infections

• Exposure to certain toxins

Sometimes, doctors cannot find an exact cause.

What Are the Symptoms of Heart Inflammation?

Symptoms can vary depending on the type and severity of the condition.

Common symptoms include:

• Chest pain

• Shortness of breath

• Unusual tiredness

• Fast or irregular heartbeat

• Fever

• Dizziness

• Fainting

• Swelling in the legs or feet

• Reduced ability to exercise

Chest pain should always be taken seriously because it can also be a sign of a heart attack or another serious health problem.

How Can Heart Inflammation Affect Heart Function?

Inflammation can make it harder for the heart to work normally.

When the heart muscle becomes inflamed, it may become weaker and have difficulty pumping blood effectively. Inflammation can also affect the heart's electrical system, which may cause an irregular heartbeat.

Pericarditis can cause pain around the heart. It can sometimes also cause fluid to build up around the heart. If too much fluid collects, it can put pressure on the heart and affect its ability to pump blood.

The effects depend on the type and severity of inflammation.

What Is Myocarditis?

Myocarditis is inflammation of the heart muscle. It may cause chest pain, tiredness, shortness of breath, and an irregular heartbeat.

In more serious cases, myocarditis can weaken the heart and affect its ability to pump blood. It may also cause abnormal heart rhythms.

Some people recover fully, while others may need continued medical care.

What Is Pericarditis?

Pericarditis occurs when the protective sac around the heart becomes inflamed.

A common symptom is sharp chest pain. The pain may become worse when taking a deep breath, coughing, or lying down. It may improve when sitting up and leaning forward.

Some people may also have fever, weakness, cough, or shortness of breath.

What Is Endocarditis?

Endocarditis affects the inner lining of the heart and can damage the heart valves. It is usually caused by an infection.

Possible symptoms include:

• Fever

• Chills

• Tiredness

• Shortness of breath

• Night sweats

• Weight loss

• Changes in a heart murmur

Endocarditis can become serious if it is not treated, so medical attention is important.

Can Heart Inflammation Cause Heart Failure?

In some cases, severe inflammation can weaken the heart and contribute to heart failure.

Warning signs may include shortness of breath, swollen legs or ankles, constant tiredness, difficulty exercising, and trouble breathing when lying down.

These symptoms can have many causes, so a healthcare professional should evaluate them.

How Is Heart Inflammation Diagnosed?

Doctors may use several tests to determine whether inflammation is affecting the heart. These may include:

• Blood tests

• Electrocardiogram

• Echocardiogram

• Chest X-ray

• Cardiac MRI

A doctor may also ask about recent infections, medicines, existing health conditions, and other symptoms.

How Is Heart Inflammation Treated?

Treatment depends on the cause and severity.

Some people may need medicines to reduce inflammation or control symptoms. If a bacterial infection is responsible, antibiotics may be prescribed.

If heart function has been affected, additional treatment may be needed. Severe cases may require hospital care and close monitoring.

Treatment should always be based on advice from a healthcare professional.

How Can You Support Heart Health?

Not every case of heart inflammation can be prevented, but healthy habits can support overall heart health.

You can help protect your heart by:

• Eating a balanced diet

• Staying physically active

• Avoiding smoking

• Getting enough sleep

• Managing blood pressure and cholesterol

• Maintaining a healthy weight

• Managing diabetes

• Following medical advice for infections and other conditions

FAQs

What is heart inflammation?

Heart inflammation occurs when inflammation affects the heart muscle, its protective covering, or its inner lining.

Can an infection cause heart inflammation?

Yes. Some viral, bacterial, and other infections can cause inflammation in or around the heart.

Can heart inflammation cause chest pain?

Yes. Chest pain is a common symptom, particularly with conditions such as myocarditis and pericarditis.

Can heart inflammation affect the heartbeat?

Yes. Inflammation can interfere with the heart's electrical system and cause a fast or irregular heartbeat.

Is heart inflammation dangerous?

It can be. Mild cases may improve with treatment, while severe cases can affect heart function and cause complications.

Conclusion

Heart inflammation can affect the heart muscle, the sac surrounding the heart, or the inner lining and valves. Myocarditis, pericarditis, and endocarditis are different conditions, but all can affect heart health.