early nitroglycerin treatment , defined as treatment initiated less than 10 hours after symptom onset , resulted in a lower incidence of new congestive heart failure , myocardial infarct extension , and/or early death from pump failure ( 15 % ) compared to late nitroglycerin treatment ( 50 % , p = 0.008 ) or early placebo treatment ( 48 % , p = 0.01 ) .
C0018802
congestive heart failure
C0017887
nitroglycerin