What is pericarditis?

Pericarditis is a condition in which the protective sac around the heart becomes inflamed. This sac is called the pericardium. The prefix “peri” means around, “cardium” means heart, and “the suffix “itis” means inflammation.
This protective sac has two layers. The first fits around the heart. The second keeps the heart in place inside the ribcage, with connecting tissue that attaches to the diaphragm. Pericarditis occurs when the area between these two layers becomes inflamed.
Pericarditis can be:
- Acute – This is essentially a one-time case of pericarditis. The condition may become apparent over hours or a couple of weeks.
- Recurrent – Pericarditis may occur again in the future for some people. In between instances of inflammation, you would not show any symptoms and the tissue in the pericardium would not be inflamed.
- Chronic – An estimated 15–30% of cases will be diagnosed as chronic. This means that the inflammation will linger for weeks or months, even with treatment.
Main symptoms
Chest pain is the most common symptom of pericarditis. This pain may not be limited to the chest cavity. Instead, it may spread through your neck, shoulders, back, and stomach. The pain may worsen when you take deep breaths or when you lie down. You may also experience an increase in coughing and difficulty swallowing.
Patients usually describe the pain as sharp or stabbing. When you sit up or lean forward, the pain may lessen. Your chest pain will be accompanied by fever, chills, or sweating. Other conditions can cause similar symptoms, so it is important to talk to your doctor so you can get an accurate diagnosis.
Other symptoms may include:
Main causes
Viruses usually cause pericarditis. Since the respiratory tract is so near the heart, inflammation can often spread into the pericardium sac surrounding the heart.
In other cases, other heart-related issues like a heart attack or heart surgery can cause pericarditis. Additional causes of pericarditis include:
- Cancer
- Autoimmune disorders
- HIV/AIDS
- Underactive thyroid
- Kidney failure
- Tuberculosis
- Certain medications
- Radiation therapy
Who can get pericarditis?
Anyone with a condition listed above is particularly at risk to develop pericarditis, but it can affect people of all ages. However, men between the ages of 20 and 50 are most at risk for developing the condition.
If more than one case of pericarditis is diagnosed within 18 months, the risk of a future case rises by 25–50%. This means that there is an increased chance the condition will continue to impact a person repeatedly throughout their life.
Diagnosis and tests for pericarditis
To provide a diagnosis, your doctor will ask for details about your symptoms and examine your recent medical history. He or she will take your blood pressure, temperature, and then listen to your breathing and heartbeat.
Additional tests may include:
- EKG
- Chest X-ray
- Echocardiogram
- Blood tests to assess inflammation
Treatments for pericarditis
The best treatment plan for your case of pericarditis will depend on what caused your infection. Rest is very important for recovery, and over-the-counter anti-inflammatory medications will often help to reduce your inflammation, also alleviating your symptoms.
When your symptoms ease, even temporarily, your body has the chance to heal from the damage that occurs during a viral infection. If over-the-counter medication isn’t strong enough, your doctor may prescribe a similar medication in a higher dose.
While non-steroidal options are the first choice of many doctors, you may need the additional help of a corticosteroid, which speeds up the healing process. This is especially important for patients with autoimmune disorders.
While viral infections typically require time and patience, a bacterial infection will require a more aggressive treatment. Your doctor may prescribe a strong antibiotic and in some cases may refer you to a specialist for further analysis.
If your heart function is impacted by pericarditis, surgery may be necessary to remove any infected fluid in the pericardium layer. A cardiologist can perform more detailed scans and tests to determine the severity of your infection.
Remember, unexplained chest pain is always a reason to talk to your doctor. If you do receive a pericarditis diagnosis, you can expect to make a full recovery in two to four weeks with proper treatment.

IMAGES
Heart Illustration Browse through our medical image collection to see illustrations of human anatomy and physiology See ImagesHealth Solutions From Our Sponsors
American College of Cardiology: "Imaging and Treatment for Complicated Pericarditis."
American Heart Association: "What is Pericarditis?"
Harvard Medical School: "Pericarditis."
Johns Hopkins Medicine: "Pericarditis."
Top What Is the Best Treatment for Pericarditis Related Articles
Chest X-Ray
Chest X-Ray is a type of X-Ray commonly used to detect abnormalities in the lungs. A chest X-ray can also detect some abnormalities in the heart, aorta, and the bones of the thoracic area. A chest X-ray can be used to define abnormalities of the lungs such as excessive fluid (fluid overload or pulmonary edema), fluid around the lung (pleural effusion), pneumonia, bronchitis, asthma, cysts, and cancers. Normal chest X-ray shows normal size and shape of the chest wall and the main structures in the chestEchocardiogram (Echocardiography, Diagnostic Cardiac Ultrasound)
Echocardiogram is a test using ultrasound to provide pictures of the heart's valves and chambers. There are several types of echocardiograms, for example, transthoracic echocardiogram, transesophageal echocardiogram (TEE), stress echocardiogram, dobutamine or adenosine/sestamibi stress echocardiogram, and and intravascular ultrasound.Electrocardiogram (ECG or EKG)
An electrocardiogram is known by the acronyms "ECG" or "EKG" more commonly used for this noninvasive procedure to record the electrical activity of the heart. An EKG generally is performed as part of a routine physical exam, part of a cardiac exercise stress test, or part of the evaluation of symptoms. Symptoms evaluated include palpitations, fainting, shortness of breath, dizziness, fainting, or chest pain.Heart Palpitations: 14 Possible Causes and Should You Worry?
Heart palpitations are caused by stress, exercise, caffeine, nicotine, hormone changes, fever, medications, low blood sugar, overactive thyroid, heart rhythm problems, alcohol, PVCs, and illegal drugs. Doctors may use tests like an ECG, Holter monitor, event monitor, and electrocardiogram to help diagnose the underlying cause of heart palpitations.Pericarditis (Symptoms, ECG, Types, Causes, Treatment)
Pericarditis is the inflammation of the pericardial sac that surrounds the heart. The causes of pericarditis include injury from heart attack, heart surgery, trauma, viral or fungal infection, HIV, tumors, mixed connective tissue disease, metabolic disease, medication reactions, or unknown reasons. Treatment for pericarditis is generally medication, however, sometimes surgery is necessary.What Are the Five Classic Signs of Inflammation?
Inflammation is the body’s response to any harmful stimulus. The stimulus may be an injury, infection, or irritation. The stimulus may be internal or external.What Are the Main Causes of Pericarditis?
What is pericarditis? Pericarditis is an inflammation of the tissue that surrounds your heart. Learn the signs of pericarditis, what causes it, how doctors diagnose it, and what you can do to treat it.What Does an Echocardiogram Test For?
An echocardiogram (EKG) is a painless test that uses ultrasound to show the structure and function of the heart muscle. The ultrasound waves create pictures of the heart so the doctor can diagnose any abnormalities of the heart, such as an enlarged heart or thick ventricles, monitor heart valves after medical or surgical treatments, identify heart defects that are present at birth, or locate blood clots or tumors. Types of echocardiogram include transthoracic echocardiogram, transesophageal echocardiogram (TEE), stress echocardiogram, dobutamine stress echocardiogram, and intravascular ultrasound.