Pericardial Diseases

What is pericardial diseases?

Pericardial diseases are a group of conditions that affect the pericardium, the thin, two-layered sac that surrounds the heart. The pericardium holds the heart in place inside the chest, and a small amount of fluid between its two layers lets the heart beat smoothly with very little friction. When this sac becomes inflamed, fills with too much fluid, or turns stiff and scarred, the heart cannot work as freely as it should.

The term covers several related problems:

• Pericarditis: inflammation of the pericardium. It may be acute (sudden and short-lived), recurrent (coming back after a symptom-free period), or chronic (lasting for months).
• Pericardial effusion: a build-up of extra fluid in the pericardial sac. It can develop slowly or quickly.
• Cardiac tamponade: a medical emergency in which fluid collects so fast, or in such volume, that it squeezes the heart and stops it from filling properly.
• Constrictive pericarditis: long-standing inflammation leaves the sac thickened, scarred, and rigid, so the heart cannot expand normally between beats.
• Congenital or structural problems: rare conditions such as a partly missing pericardium or fluid-filled pericardial cysts that are present from birth.

Pericardial diseases can affect people of any age. Acute pericarditis is often seen in otherwise healthy young and middle-aged adults, frequently after a viral illness. Other forms are more common in people who have had heart surgery, radiation treatment to the chest, cancer, kidney failure, or an autoimmune disease. In hospital settings, these conditions are usually managed by cardiologists, heart specialists such as those in the Cardiology Department at Acibadem, sometimes working alongside heart surgeons, rheumatologists, or infectious disease doctors depending on the cause.

Pericardial diseases symptoms

Pericardial diseases symptoms depend on which part of the spectrum a person has and on how quickly the problem developed. Some people have dramatic chest pain within hours; others notice only slow-building tiredness and swelling over weeks or months.

Common symptoms include:

• Sharp or stabbing chest pain, often behind the breastbone or on the left side of the chest
• Pain that worsens when lying flat, breathing in deeply, coughing, or swallowing, and eases when sitting up and leaning forward
• Pain that spreads to the neck, shoulder, or back
• Shortness of breath, especially when lying down or during activity
• Fever, chills, or a general feeling of being unwell
• Palpitations (an awareness of a fast, pounding, or irregular heartbeat)
• Dry cough
• Unusual tiredness or weakness
• Swelling of the legs, ankles, or abdomen
• Lightheadedness or fainting

Acute pericarditis most often causes the classic positional chest pain described above. Because the pain can feel similar to a heart attack, it is not possible to tell the difference by symptoms alone, which is why sudden chest pain always needs urgent medical assessment.

Pericardial effusion that builds up slowly may cause no symptoms at all and is sometimes discovered by chance on a scan done for another reason. As the fluid increases, people may notice breathlessness, a feeling of pressure in the chest, difficulty swallowing, or hoarseness from pressure on nearby structures.

Cardiac tamponade tends to cause rapid breathlessness, a racing heartbeat, low blood pressure, cold or clammy skin, confusion, and fainting. These are red-flag signs of an emergency.

Constrictive pericarditis often looks like heart failure. Typical features are swelling in the legs and abdomen, breathlessness on exertion, fatigue, loss of appetite, and a bloated feeling, usually developing gradually over many months.

Pericardial diseases causes and risk factors

Pericardial diseases causes vary widely, and in many cases of acute pericarditis no specific cause is ever identified. Doctors then describe it as idiopathic, meaning of unknown origin; most of these cases are thought to follow a viral infection.

Recognized causes include:

• Infections: viruses are the most common infectious trigger in many parts of the world. Bacteria (including tuberculosis in regions where it is common), fungi, and parasites are less frequent causes.
• Autoimmune and inflammatory diseases: conditions in which the immune system attacks the body’s own tissues, such as lupus, rheumatoid arthritis, scleroderma, and some inflammatory bowel diseases.
• Heart injury: pericarditis can appear days to weeks after a heart attack or after heart surgery, a reaction sometimes called post-cardiac injury syndrome.
• Chest trauma: a direct blow, a penetrating injury, or complications of medical procedures involving the heart.
• Cancer: tumors that start in the pericardium are rare, but cancers of the lung, breast, and blood system can spread to it and cause effusions.
• Radiation therapy to the chest, which can cause inflammation soon afterward or scarring many years later.
• Kidney failure: waste products that build up when the kidneys fail can irritate the pericardium.
• Underactive thyroid (hypothyroidism), which can lead to slow fluid accumulation.
• Certain medications, in uncommon cases, including some drugs used for heart rhythm, blood pressure, seizures, and cancer immunotherapy.

Risk factors overlap with these causes. People are more likely to develop pericardial diseases if they have a recent viral illness, an autoimmune condition, advanced kidney disease, a history of heart attack or heart surgery, previous radiation to the chest, or an active cancer. Having had one episode of pericarditis raises the chance of a recurrence, particularly if the first episode was not fully treated or if treatment was stopped early. Men are affected by acute pericarditis somewhat more often than women in many reports, although anyone can develop it.

Pericardial diseases diagnosis

Pericardial diseases diagnosis starts with a careful conversation about your symptoms, recent illnesses, medical history, and medications, followed by a physical examination. With a stethoscope, a doctor may hear a pericardial friction rub, a scratchy sound made by the inflamed layers of the sac moving against each other. Muffled heart sounds, low blood pressure, bulging neck veins, and swelling in the legs can point toward effusion or constriction.

Tests commonly used to confirm the diagnosis and identify the cause include:

• Electrocardiogram (ECG): a painless recording of the heart’s electrical activity. Pericarditis often produces characteristic changes, and it also helps rule out a heart attack.
• Echocardiogram: an ultrasound scan of the heart. This is the key test for detecting pericardial fluid, estimating how much there is, and showing whether the fluid is compressing the heart.
• Blood tests: markers of inflammation such as C-reactive protein (CRP) and the erythrocyte sedimentation rate (ESR); troponin, a protein released when heart muscle is injured; a complete blood count; kidney and thyroid function; and, where relevant, tests for infections or autoimmune antibodies.
• Chest X-ray: may show an enlarged heart shadow if a large effusion is present, or lung problems that suggest a cause.
• Cardiac magnetic resonance imaging (MRI): gives detailed pictures of the pericardium, can show active inflammation, and helps distinguish constrictive pericarditis from other causes of heart failure.
• Computed tomography (CT) scan: useful for measuring pericardial thickness, detecting calcium deposits in scarred pericardium, and looking for tumors or lung disease.
• Pericardial fluid analysis: if fluid is drained, it can be examined in the laboratory for infection, cancer cells, and other clues.
• Cardiac catheterization: in selected cases, a thin tube is guided into the heart to measure pressures, which can help confirm constriction.

For acute pericarditis, doctors generally make the diagnosis when at least two of four features are present: typical chest pain, a friction rub on examination, characteristic ECG changes, and a new or worsening pericardial effusion. Raised inflammatory markers and imaging evidence of inflammation add support. Because chest pain has many possible causes, the assessment also aims to exclude heart attack, blood clots in the lungs, and other serious conditions.

Pericardial diseases treatment options

Pericardial diseases treatment options depend on the type of disease, its cause, how severe the symptoms are, and whether the heart is being compressed. Your doctor will tailor the plan to your situation, and it may change as test results come back.

Observation and rest. Small effusions without symptoms are often simply monitored with repeat echocardiograms. People with acute pericarditis are usually advised to avoid strenuous exercise and competitive sport until symptoms have settled and inflammatory markers have returned to normal, because physical strain can prolong inflammation.

Medications. For most cases of acute or recurrent pericarditis with no specific cause, treatment is aimed at reducing inflammation and pain:

• Nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or high-dose aspirin, are commonly used first-line. Aspirin is often preferred after a recent heart attack. A medicine to protect the stomach is frequently prescribed alongside them.
• Colchicine, an anti-inflammatory medicine originally used for gout, is often added because it may shorten symptoms and reduce the risk of recurrence. It is typically taken for several weeks to months.
• Corticosteroids (steroid tablets such as prednisone) are generally reserved for people who cannot take NSAIDs, who have an autoimmune cause, or whose disease does not respond to other treatment, because steroids can increase the chance of recurrence when stopped.
• Other immune-modifying drugs, including medicines that block a chemical messenger called interleukin-1, may be considered by specialists for difficult recurrent cases.
• Treatment of the underlying cause: antibiotics or anti-tuberculosis therapy for bacterial infection, dialysis for kidney failure, thyroid hormone for hypothyroidism, or cancer treatment where a tumor is responsible.

Procedures. When fluid is compressing the heart, or when a sample is needed to find the cause, a doctor may perform a pericardiocentesis. A thin needle and catheter are guided, usually with ultrasound, into the pericardial sac to drain the fluid. In cardiac tamponade this is done urgently and can be life-saving. Sometimes a drain is left in place for a day or two. For effusions that keep returning, a small opening may be created in the pericardium (a pericardial window) so fluid can drain into the chest cavity where the body absorbs it.

Surgery. The main operation for pericardial disease is a pericardiectomy, in which a heart surgeon removes part or most of the thickened, scarred pericardium. It is the definitive treatment for constrictive pericarditis that is causing significant symptoms, and it is occasionally considered for severe, disabling recurrent pericarditis that has not responded to medication. Like any major heart operation, it carries risks that your surgeon will discuss with you, and recovery takes weeks to months.

Recovery and rehabilitation. After an episode of pericarditis, activity is usually reintroduced gradually. After surgery, a supervised cardiac rehabilitation program, which combines monitored exercise, education, and support, may help people regain strength and confidence. Follow-up visits and repeat echocardiograms are typically arranged to check that inflammation has settled and that no fluid is reaccumulating.

Living with pericardial diseases and outlook

The outlook for pericardial diseases varies with the type and cause. Acute pericarditis caused by a virus or with no identified cause usually settles within a few weeks with appropriate treatment, and many people recover fully without long-term heart damage. However, a proportion of people experience one or more recurrences, sometimes months after the first episode. Recurrent pericarditis can be frustrating and tiring, but it rarely leads to constriction, and long-term management with colchicine or other medicines can often keep it under control.

Pericardial effusion has a prognosis that depends largely on what is causing it. Fluid linked to a treatable condition often resolves once that condition is addressed. Effusions caused by cancer or tuberculosis are more serious and need close specialist care.

Constrictive pericarditis is a chronic condition that generally does not improve on its own. Surgery can relieve symptoms substantially in many people, although outcomes tend to be better when the operation is done before the heart has been strained for a long time and when the cause is not radiation-related.

Practical steps that may support recovery and reduce the chance of problems include:

• Taking anti-inflammatory medicines exactly as prescribed and for the full course, even if you feel better early
• Not stopping steroids or colchicine suddenly without medical advice
• Following your doctor’s guidance about when to return to exercise, work, and sport
• Keeping any underlying condition, such as an autoimmune disease or kidney disease, well controlled
• Attending follow-up appointments and scans, even when symptom-free
• Reporting new chest pain, breathlessness, or swelling promptly

Living with a recurrent or chronic pericardial condition can affect mood and daily life. Talking with your care team about pain control, fatigue, and any worries about activity is a normal part of good care.

Frequently asked questions

What is pericardial diseases in simple terms?

Pericardial diseases are problems with the pericardium, the protective sac around the heart. The sac can become inflamed (pericarditis), fill with too much fluid (pericardial effusion), squeeze the heart dangerously (cardiac tamponade), or become stiff and scarred (constrictive pericarditis). Each of these interferes with the heart’s ability to fill and pump normally, though the severity ranges from mild and self-limiting to life-threatening.

What are the most common pericardial diseases symptoms?

The most recognizable symptom is sharp chest pain that gets worse when you lie down or breathe in and improves when you sit up and lean forward. Other frequent symptoms are shortness of breath, fever, palpitations, tiredness, and swelling in the legs or abdomen. Some people with slowly developing effusions have no symptoms at all, so the absence of pain does not rule out a pericardial problem.

What are the main pericardial diseases causes?

Viral infections and cases with no identifiable cause account for many episodes of acute pericarditis. Other causes include autoimmune diseases, heart attack or heart surgery, chest injury, cancer, radiation to the chest, kidney failure, underactive thyroid, tuberculosis and other infections, and occasionally medications. Your doctor will look for a specific cause because it can change the treatment.

How is pericardial diseases diagnosis confirmed?

Doctors combine your symptoms and examination findings with an ECG, an echocardiogram, and blood tests for inflammation and heart muscle injury. An echocardiogram is the main test for detecting fluid around the heart. Cardiac MRI or CT may be used to look for inflammation, thickening, or scarring, and fluid drained from the sac can be analyzed in the laboratory when the cause is unclear.

What are the pericardial diseases treatment options?

Treatment depends on the type and cause. Uncomplicated pericarditis is usually treated with rest and anti-inflammatory medicines such as NSAIDs and colchicine, with steroids reserved for selected cases. Fluid that compresses the heart is drained with a needle procedure called pericardiocentesis. Constrictive pericarditis that causes significant symptoms may require surgical removal of the pericardium. Any underlying condition, such as infection or kidney failure, is treated at the same time.

Can pericardial diseases come back after treatment?

Yes. Recurrent pericarditis is a recognized pattern in which symptoms return after a period of being well. Recurrence is more likely if the first episode was treated for too short a time, if steroids were used early, or if there is an underlying autoimmune condition. Colchicine is often prescribed for several months to lower this risk, and specialists have additional medicines for people with repeated episodes.

Is pericardial disease the same as a heart attack?

No. A heart attack happens when blood flow to part of the heart muscle is blocked, whereas pericarditis is inflammation of the sac around the heart. The two can feel similar, and pericarditis can sometimes follow a heart attack, so doctors always check for both when someone has sudden chest pain. Only tests such as an ECG and blood tests can reliably tell them apart.

When to see a doctor

Any new or unexplained chest pain should be assessed by a doctor promptly, because pericardial diseases cannot be reliably distinguished from a heart attack or other serious conditions without tests. If you have already been diagnosed with a pericardial condition, contact your care team if symptoms return, worsen, or fail to improve with treatment, or if you develop side effects from your medicines.

Seek emergency medical care immediately if you or someone near you has:

• Sudden, severe, or crushing chest pain, especially with sweating, nausea, or pain spreading to the arm or jaw
• Rapidly worsening shortness of breath or difficulty breathing while at rest
• Fainting, near-fainting, or sudden confusion
• A very fast or irregular heartbeat with dizziness or weakness
• Cold, clammy, pale, or bluish skin
• Chest pain together with a high fever, particularly after recent surgery or a known infection
• Sudden swelling of the neck veins, abdomen, or legs along with breathlessness

These signs may indicate cardiac tamponade, a heart attack, or another emergency in which every minute matters.