Background: Acute pericarditis is a relatively common disorder with a reported incidence ranging from 3.32 to 27.7 cases per 100,000 persons per year in the Western word.Potential complications of acute pericarditis include pericarditis recurrence, cardiac tamponade and constrictive pericarditis.To date there is limited clinical evidence on prognostic factors of outcome in acute pericarditis; use of steroids/colchicine, the kinetics of C-reactive protein (CRP) in the acute phase and the underlying aetiology have been previously associated with recurrence of acute pericarditis. Nevertheless there are currently no established biomarkers to risk stratify patients with acute pericarditis.