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Concept
Pericarditis
Summary
Pericarditis is inflammation of the pericardium, the fibrous sac surrounding the heart. Symptoms typically include sudden onset of sharp chest pain, which may also be felt in the shoulders, neck, or back. The pain is typically less severe when sitting up and more severe when lying down or breathing deeply. Other symptoms of pericarditis can include fever, weakness, palpitations, and shortness of breath. The onset of symptoms can occasionally be gradual rather than sudden.
The cause of pericarditis often remains unknown but is believed to be most often due to a viral infection. Other causes include bacterial infections such as tuberculosis, uremic pericarditis, heart attack, cancer, autoimmune disorders, and chest trauma. Diagnosis is based on the presence of chest pain, a pericardial rub, specific electrocardiogram (ECG) changes, and fluid around the heart. A heart attack may produce similar symptoms to pericarditis.
Treatment in most cases is with NSAIDs and possibly the anti-inflammatory medication colchicine. Steroids may be used if these are not appropriate. Symptoms usually improve in a few days to weeks but can occasionally last months. Complications can include cardiac tamponade, myocarditis, and constrictive pericarditis. Pericarditis is an uncommon cause of chest pain. About 3 per 10,000 people are affected per year. Those most commonly affected are males between the ages of 20 and 50. Up to 30% of those affected have more than one episode.
Substernal or left precordial pleuritic chest pain with radiation to the trapezius ridge (the bottom portion of scapula on the back) is the characteristic pain of pericarditis. The pain is usually relieved by sitting up or bending forward, and worsened by lying down (both recumbent and supine positions) or by inspiration (taking a breath in). The pain may resemble that of angina but differs in that pericarditis pain changes with body position, where heart attack pain is generally constant and pressure-like. Other symptoms of pericarditis may include dry cough, fever, fatigue, and anxiety.
Official source
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