Prognosis

The risk of reinfarction is increased with

• hypertension ^b
• elevated cholesterol or triglycerides ^b
• angina before MI ^a
• a non-Q wave MI ^b
• worsening angiographic findings ^a
• ST-segment depression on exercise test ^a

Why?

Hypertension and a non-Q wave MI increase the risk of reinfarction

Patient	Prognostic Factor	Outcome	CER	OR (95% CI)	NNF+ (95% CI)
myocardial infarction b	hypertension independent	reinfarction at 10 years	48%	1.80 (1.10 to 3.20)	7 (4 to 42)
	non-Q wave MI independent			1.80 (1.10 to 3.10)	8 (18 to 52)