What Causes Pericarditis?
The cause of about half of all pericarditis cases
(both acute and chronic) is unknown.
Viral infections are likely the most common cause of
acute pericarditis, but the virus may never be found. Pericarditis often occurs
after a respiratory infection. Bacterial, fungal, and other infections also can
cause pericarditis.
Less often, pericarditis is caused by:
- Autoimmune disorders, such as lupus, scleroderma,
and rheumatoid arthritis
- Heart
attack and
heart
surgery
- Kidney failure, HIV/AIDS, cancer, tuberculosis,
and other health problems
- Injury from accidents or radiation therapy
- Certain medicines, like phenytoin (an antiseizure
medicine), warfarin and heparin (blood-thinning medicines), and procainamide (a
medicine to treat abnormal heartbeats)
The causes of acute and chronic pericarditis are the
same. |