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1–3 h: 1–3 days; cytoplasmic hypereosinophilia and loss of striations > 3 days: disintegration: Interstitial edema: 4–12 h: Coagulative necrosis: 'nuclear changes' 12–24 (pyknosis, karyorrhexis) 1–3 days (loss of nuclei) Depends on size of infarction: Neutrophil infiltration: 12–24 h: 1–3 days: 5–7 days: Karyorrhexis of ...
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Myocardial infarction; Other names: Acute myocardial infarction (AMI), heart attack: A myocardial infarction occurs when an atherosclerotic plaque slowly builds up in the inner lining of a coronary artery and then suddenly ruptures, causing catastrophic thrombus formation, totally occluding the artery and preventing blood flow downstream to the heart muscle.
Test Sensitivity and specificity Approximate peak Description Troponin test: The most sensitive and specific test for myocardial damage. Because it has increased specificity compared with CK-MB, troponin is composed of 3 proteins- Troponin C, Cardic troponin I, and Cardiac troponin T. Troponin I especially has a high affinity for myocardial injury.
“We have been using these tests for decades, but this is a nice study to help remind us that heart disease is still the number one killer of women,” says Dr. Bradley Serwer, MD, an ...
Medical calculators arose because modern medicine makes frequent use of scores and indices that put physicians' memory and calculation skills to the test. [2] The advent of personal computers, the Internet and Web, and more recently personal digital assistants (PDAs) have formed an environment conducive to their development, spread and use.
A new approach to a routine blood test could predict a person’s 30-year risk of heart disease, research published Saturday in the New England Journal of Medicine found.. Doctors have long ...
With a maximal stress test the level of exercise is increased until the person's heart rate will not increase any higher, despite increased exercise. A fairly accurate estimate of the target heart rate, based on extensive clinical research, can be estimated by the formula 220 beats per minute minus patient's age.