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Spontaneous coronary artery dissection (SCAD) is an uncommon but potentially lethal condition in which one of the coronary arteries that supply the heart, spontaneously develops a blood collection, or hematoma, within the artery wall due to a tear in the wall. SCAD is one of the arterial dissections that can occur. [1]
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.
This rare type causes scar tissue to replace normal heart muscle. Stress-induced cardiomyopathy. ... or when heart disease is diagnosed on a test like an echocardiogram or cardiac stress test.
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Acronym "SCAD" Spontaneous coronary artery dissection; Stable coronary artery disease (stable ischemic heart disease) (see Coronary artery disease § Stable angina) Segmental colitis associated with diverticulosis, a type of colitis; Short-chain acyl-CoA dehydrogenase, an enzyme; Scad, name for various fish in the jack family, Carangidae
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Achieving a high enough heart rate at the end of exercise is critical to improving the sensitivity of the test to detect high grade heart artery stenosis. High frequency analysis of the QRS complex may be useful for detection of coronary artery disease during an exercise stress test. [1]
A heart attack during or shortly after the procedure occurs in 0.3% of cases; this may require emergency coronary artery bypass surgery. [13] Heart muscle injury characterized by elevated levels of CK-MB, troponin I, and troponin T may occur in up to 30% of all PCI procedures. Elevated enzymes have been associated with later clinical outcomes ...