Troponin in critical care patients and outcomes.

Myocardial infarction is common in the critically unwell population with pre-existing cardiovascular disease and is associated with a greater overall mortality. This article explores guidelines for diagnosing myocardial infarction, and research into the use of troponin as both a diagnostic and prognostic tool. Currently, the majority of patients in the intensive care unit with acute myocardial infarction go unrecognised. The underlying cause is predominantly oxygen supply-demand imbalance, therefore identifying those at risk is important as there is the potential to modify elements of their care and reduce their overall mortality.