Key result
Cardiac troponins provide superior diagnostic accuracy for acute myocardial infarction compared to CK-MB.
Why the study?
Early diagnosis of acute myocardial infarction is critical for patient survival, and the study aimed to evaluate the accuracy and limitations of troponins and myoglobin as diagnostic biomarkers.
Does the measurement of cardiac troponins improve the diagnosis and prognostic assessment of acute myocardial infarction compared to other biomarkers?
Does the measurement of cardiac troponins improve the diagnosis and prognostic assessment of acute myocardial infarction compared to other biomarkers?
Cardiac troponins are the most sensitive and specific biomarkers for the early diagnosis and prognostic assessment of acute myocardial infarction, confirming current diagnostic criteria.
Currently cardiovascular diseases are one of the main causes of mortality worldwide, one of the most important is the Acute Myocardial Infarction (AMI), its early diagnosis for patient survival is extremely necessary. Biochemical markers of myocardial injury have the function of facilitating the diagnosis of these cardiac events. The present study aimed to evaluate the accuracy, as well as the limitations of the cardiac biomarkers of troponins and myoglobin as an aid in acute myocardial infarction. It was possible to observe that recently, troponins have received increasing attention as extremely specific markers of cellular injury, these form a complex that regulates the calcium-dependent interaction of myosin with actin, being constituted of three different proteins (troponin I, C and T ) existing in both skeletal and cardiac muscle and encoded by different genes. Acute circulatory failure causes cellular changes that can vary from small losses of some membrane properties to cell death. With this it is possible to conclude that in some intracellular substances gain the interstitial space and blood circulation, resulting in a transient increase in circulating levels, aspartate aminotransferase, myoglobin, creatine kinase, lactic dehydrogenase, troponins, among others, being identified as cardiac injury markers represent great tools that help in the diagnosis of acute myocardial infarction
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Costa et al. (2023) conducted a review in Acute Myocardial Infarction. Cardiac troponins vs. CK-MB and myoglobin was evaluated on Diagnostic sensitivity and specificity for acute myocardial infarction. Cardiac troponins are highly specific and sensitive biochemical markers that provide superior diagnostic accuracy for acute myocardial infarction compared to traditional markers like CK-MB.
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