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A cardiac stress test is a cardiological examination that evaluates the cardiovascular system's response to external stress within a controlled clinical setting. This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate.
Mental stress-induced myocardial ischemia (MSIMI) is a medical condition in which acute psychological stress can trigger a transient myocardial ischemia, which is a state of reduced blood flow to the heart muscle, often without the presence of significant coronary artery disease (CAD).
It is often a sign of myocardial ischemia, of which coronary insufficiency is a major cause. Other ischemic heart diseases causing ST depression include: Subendocardial ischemia [3] or even infarction. [4] Subendocardial means non full thickness ischemia. In contrast, ST elevation is transmural (or full thickness) ischemia; Non Q-wave ...
Blood clots are a medical emergency in their own right—and can lead to heart attack and stroke—so if you notice these changes, seek treatment right away, she urges. Jaw or neck pain with exertion
Chronic stress. Coronary artery disease develops when the arteries that supply your heart become clogged with a fatty substance called plaque. ... Ischemic stroke. This is a stroke caused by a ...
Coronary ischemia, myocardial ischemia, [1] or cardiac ischemia, [2] is a medical term for abnormally reduced blood flow in the coronary circulation through the coronary arteries. [3] Coronary ischemia is linked to heart disease , and heart attacks . [ 4 ]
Research efforts during the 80-90s have shown that myocardial ischemia also induces changes to the depolarization phase and confirmed the use of HFQRS-RMS as a quantitative diagnostic measure of supply myocardial ischemia [5] [6] [7] and demand myocardial (stress-induced) ischemia. [8]
Coronary steal is also the mechanism in most drug-based cardiac stress tests; When a patient is incapable of doing physical activity they are given a vasodilator that produces a "cardiac steal syndrome" as a diagnostic procedure. The test result is positive if the patient's symptoms reappear or if ECG alterations are seen. [citation needed]