Which of the following describes a 'subendocardial' myocardial infarction?
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Correct answer: Necrosis of the inner one-third to one-half of the wall
The subendocardium is the least perfused region of the heart and the first to suffer from ischemia. Subendocardial infarcts often result from global hypotension or transient occlusions, and typically do not show ST-segment elevation on ECG.
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