Prognosis

Listen for a pericardial rub ^c

Note:

• Pericardial effusions are common (25%: 95% CI: 21% to 30%) ^c but less than half have an associated pericardial rub (46%: 95% CI: 35% to 57%) ^c

A pericardial rub increases the risk of dying

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
myocardial infarction c	clinical pericardial rub not independent	death at uncertain duration	6%	5 (2 to 10)	4 (2 to 12)