CMA refers to: myocardial troponin I (cTnI), myoglobin (MYO), and creatine kinase isoenzyme (CK-MB) are collectively referred to as an important marker for detecting myocardial infarction.
Detection of cardiac troponin I / myoglobin / creatine kinase isoenzyme significance:
1. Cardiac troponin I: Cardiac troponin I (cTnI) is a subunit of cardiac troponin complex that is released into the bloodstream after myocardial injury and begins to rise after 4-6 hours. cTnI has high myocardial specificity and sensitivity and is currently recognized as the most ideal marker for myocardial infarction.
2.Myoglobin (MYO) can increase blood concentration 1 hour after myocardial infarction, which is an early marker of myocardial infarction, but its specificity is low.
3.Creatine kinase isoenzyme (CK-MB) begins to rise in the blood 3-4 hours after myocardial injury and is more cardiac specific.
The combined detection of three cardiac markers can improve the diagnostic value of myocardial infarction.