What does cardiac enzymes mean?

Myocardial enzyme detection is of great significance in the diagnosis of cardiovascular diseases such as myocardial infarction. It is necessary to pay attention to physiological characteristics and combine clinical comprehensive judgment when special people are detected. Myocardial enzyme is a variety of enzymes existing in myocardial cells. When myocardial cells are damaged, these enzymes will be released into the blood, resulting in increased levels of myocardial enzymes in the blood. Myocardial enzyme detection is one of the important means to diagnose cardiovascular diseases such as myocardial infarction. Myocardial enzymes mainly include the following: 1. Creatine kinase (CK): CK mainly exists in skeletal muscle and myocardium, CK level increases during myocardial infarction, and the degree of increase is related to myocardial infarction area. 2. Creatine kinase isoenzyme (CK-MB): CK-MB mainly exists in myocardium and has high specificity for the diagnosis of myocardial infarction. 3. Aspartate aminotransferase (AST): AST is widely present in myocardium, liver, skeletal muscle and other tissues. AST level may increase during myocardial infarction, but its specificity is not as good as CK-MB. 4. Lactate dehydrogenase (LDH): LDH mainly exists in myocardium, skeletal muscle, liver and other tissues. LDH levels may increase during myocardial infarction, but the specificity is not as good as CK-MB. Precautions for myocardial enzyme detection include: 1. Detection time: Myocardial enzyme detection is generally performed within hours to days after myocardial infarction. Early detection may not be sensitive. 2. Influencing factors: Severe exercise, muscle injury, infection, heart failure and other factors may lead to elevated levels of myocardial enzymes, so doctors should be informed before detection.3. Combined detection: The specificity and sensitivity of a single myocardial enzyme test is limited, and it is usually necessary to jointly detect multiple myocardial enzymes and other myocardial injury markers, such as troponin, to improve the accuracy of diagnosis. 4. Other examinations: Myocardial enzyme detection is only one of the auxiliary means for the diagnosis of myocardial infarction, and it also needs to be combined with clinical symptoms, ECG and other examination results for comprehensive judgment. In short, myocardial enzyme detection is of great significance for the diagnosis of cardiovascular diseases such as myocardial infarction, but it is necessary to pay attention to the detection time, influencing factors, joint detection and other aspects to improve the accuracy of diagnosis. If you suspect cardiovascular disease, you should seek medical attention in time for relevant examinations and treatment. Special populations need to pay attention to the following points when performing myocardial enzyme tests: 1. Pregnant women: Due to the physiological characteristics of pregnant women, myocardial enzyme levels may increase, so it is necessary to combine clinical conditions when interpreting myocardial enzyme results. 2. Children: Children's myocardial enzyme levels are different from those of adults, and the causes of elevated myocardial enzymes may also be different from those of adults. Therefore, comprehensive judgment should be made according to children's age, gender, physical condition and other factors when performing myocardial enzyme detection. 3. Athletes: Athletes' myocardial enzyme levels may be higher than those of ordinary people, so it is necessary to consider athletes' professional characteristics when performing myocardial enzyme detection. In short, myocardial enzyme detection is one of the important means of diagnosing cardiovascular diseases such as myocardial infarction, but it is necessary to pay attention to the characteristics of special populations and make comprehensive judgments based on clinical conditions. If there is any doubt about the myocardial enzyme test results, consult a doctor in time.