Prognosis

Why?

ECG changes increases the risk of dying

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
symptoms suggestive of MI a	signs of acute ischaemia on admission ECG independent	death at 5 years	26%	2.24 (1.83 to 2.75)	3 (2 to 5)
	pathological but no sign of acute ischaemia on admission ECG independent			1.90 (1.57 to 2.29)	4 (3 to 7)
	presence of Q-waves on admission ECG independent			1.47 (1.12 to 1.92)	8 (4 to 32)