The Medical journal of Australia
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To assess the predictive value of cardiac troponin I levels in cardiac and all-cause mortality in patients presenting to an emergency department. ⋯ Compared with CK-MB, cardiac troponin I more accurately predicts 30-day mortality rates in patients presenting to the emergency department. Moreover, troponin I levels identify additional groups of patients at increased risk of death not so identified by measuring CK-MB values.
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To assess the evidence that higher rates of coronary angiography (CA) and revascularisation (RV) in the subacute phase of acute myocardial infarction (AMI) improve patient outcomes. ⋯ In the subacute phase of AMI, rates of CA and RV in excess of 30% and 20%, respectively, may not confer additional benefit in preventing death or re-infarction. However, variability between studies in design, patient selection, and extent of cross-over from medical to procedural groups, as well as limited data on symptom status, limits generalisability of results.