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High sensitive troponin I test can help to proactively identify individuals at high cardiovascular risk long before symptoms appear. [21] [22] The higher the troponin I level in asymptomatic individuals, the higher the likelihood of subclinical myocardial injury. It provides greater accuracy in identifying persons at low CVD risk. [22] [21]
After a myocardial infarction troponins may remain high for up to 2 weeks. [16] Cardiac troponins are a marker of all heart muscle damage, not just myocardial infarction, which is the most severe form of heart disorder.
Differential diagnosis of troponin elevation includes acute infarction, severe pulmonary embolism causing acute right heart overload, heart failure, myocarditis. Troponins can also calculate infarct size but the peak must be measured in the 3rd day. After myocyte injury, troponin is released in 2–4 hours and persists for up to 7 days.
Elevated troponin levels indicate the heart is damaged and doctors can use this measure to diagnose heart attack. “Everybody sprung into action,” Hutt says.
Dr. Jeremy London is a heart surgeon and a heart attack survivor. He operates on diseased hearts, but like many people, he ignored his own symptoms of a coronary artery blockage until it became an ...
In fact, most heart attacks occur after age 45 for men and after age 55 for women, according to the National Heart, Lung, and Blood Institute. Family history can also play a role in our heart ...