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“Unless there is clarity in the emergency room on what defines a heart attack, patients with chest pain may be wrongly labelled with heart attack and not receive the correct treatment. Many doctors have not understood that elevated troponin levels in the blood are not sufficient to diagnosis a heart attack and this has created real problems.”
“We had three previous definitions, but there is still a lot of confusion [about distinguishing] between injury and infarction. We definitely hope that this fourth definition will further help people distinguish the two and help people determine whether or not a patient has an MI.”
“The diagnosis of type 1 MI versus type 2 MI versus a nonischemic myocardial injury versus a combination of more than one of these entities requires considerable, careful, and rational clinical decision-making. Good clinical judgment is essential in this decision-making process.”
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Thygesen et al. (2007) studied this question.
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