Acute pericarditis

Acute pericarditis
An ECG showing pericarditis. Note the ST elevation in multiple leads with slight reciprocal ST depression in aVR.
SpecialtyCardiology 

Acute pericarditis is a type of pericarditis (inflammation of the sac surrounding the heart, the pericardium) usually lasting less than 4 to 6 weeks. It is the most common condition affecting the pericardium.