Question

what is pericarditis?​

Answer 1

Answer:

The cause of pericarditis is often unknown, though viral infections are a common cause. Pericarditis often occurs after a respiratory infection. Chronic, or recurring pericarditis is usually the result of autoimmune disorders such as lupus, scleroderma and rheumatoid arthritis.

Answer 2

Explanation:

Pericarditis may be caused by a viral infection or heart attack. In many cases, the cause is unknown.