Table 8.

Definitions with respect to pericarditis

Pericarditis	Inflammatory process involving the pericardium associated with chest pain, pericardial friction rub, and electrocardiogram changes.
Severe	Pericarditis requiring prolonged (>4 weeks) anti-inflammatory therapy, associated with recurrent effusions, or requiring surgical intervention (i.e. constrictive pericarditis).
Non-severe	Other pericarditis.
Early	Occurring within 2 weeks from the index procedure.
Late	Occurring >2 weeks from the index procedure.