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4 Cards in this Set
- Front
- Back
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What is infarct?
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caused by local ischemia, there is coagulation necrosis most often because of an embolus or thrombus.
keep in mind that an embolus is just a free-moving thrombus |
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What are the four categories of myocardial ischemia?
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1. noninfarction subendocardial ischemia (classic angina)
2. Non-Q wave (Non-ST elevation) infarction 3. Noninfarction transmural ischemia 4. ST elevation/Q wave infarction |
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What are the EKG manifestations of
1. noninfarction subendocardial ischemia (classic angina) 2. Non-Q wave (Non-ST elevation) infarction 3. Noninfarction transmural ischemia 4. ST elevation/Q wave infarction |
1. transient ST depressions
2. ST depressions or T wave inversions without Q waves 3. transient ST elevations or paradoxical T wave normalization, sometimes followed by T wave inversions 4. New Q waves preceded by hyperacute T waves/ST elevations and followed by T wave inversions |
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What is the trend of the conduction vector for tissue surrounding ischemic tissue?
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the healthy cardiac tissue projects a conduction vector toward the ischemic tissue
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