Doctor insights on:
Myocardial Ischemia Vs Myocardial Infarction
Myocardial Infarction means some of the heart muscle dies because of insufficient oxygen supply. Most often this occurs because the coronary artery is blocked by plaque & clot. Other causes include tears in the artery wall, extremely high oxygen demand (eg, rapid arrhythmia, heart valve disorder, or severe systemic illness.) Prompt treatment can minimize heart damage & ...Read more
Small myocardial infarction with Small -medium pharmacologically induced myocardial ischemia in that distribution. What are the the implications?
Reversible defect?: If you're describing what we term a "reversible defect", wherein the heart seems OK at rest and not OK when stimulated (by exercise or medication), then this would mean that area of the heart is still vulnerable to damage (heart attack). This needs to be addressed and treated. You may need cardiac catheterization to define the anatomy of the vessel supplying that area with blood. ...Read more
Ischemia vs MI: Cholesterol plaque develops in the heart arteries. Progressive narrowing - usually greater than 70% - can lead to lack of blood flow to the heart muscle during exercise or rest and causes angina or ischemia. Myocardial infarction is due to the rupture of a plaque which causes a blood clot to form (thrombosis) in the artery blocking blood flow to that area of the heart muscle which then dies. ...Read more
MI: Ischemia is a state of insufficient blood supply to an organ, in this case the heart. When the condition persists it causes death of the tissue/organ - myocardial infarction. The cause of limited supply can be a narrowing of the supplying blood vessel, a blood cloth(thrombosis), a combination of both, or an increased tissue energy need such as in fever/sepsis etc... ...Read moreSee 1 more doctor answer
Can you briefly describe what is ischaemia? And is myocardial infarction the same with heart attack?
Many poss causes: Almost all heart attacks are the result of fatty deposits on the inside of arteries that break open and cause clotting which will blocks the artery (and the blood from flowing to the part of the heart the artery feeds). Family history, fatty diet, smoking, high blood pressure, diabetes and other disorders can all contribute to this process. ...Read moreSee 1 more doctor answer
Toponins,clinic,wall: Acute cardiogenic shock, .Ventricular arrythmias, infarct syndrome, flash pulmonary edema, wall motion abnormalities, syncope, presyncope, cardiac arrest, . It takes 4 hours for troponins to elevate after the infarct begins. That is why clinical symptoms dictate emergent coronary interventions. Troponins may still be normal within minutes of a life threatening myocardial infarct. ...Read moreSee 3 more doctor answers
When the blood supply of a tissue is compromised by whatever mechanism, the tissue will stop working and if blood flow is not restored, the tissue will eventually die ("infarct", both verb and noun). The clinical picture that runs with development of an infarct ("heart attack"; ...Read more