This early report describes the ECG and pathological features of subendocardial infarction, noting the absence of Q waves despite fatal outcomes.
In the ordinary evolution of an acute myocardial infarct the electrocardiogram shows T wave (ischemia), RS-T segment ("current of injury") and QRS (death of muscle) changes. This paper presents a special group of cases of infarction in which only T wave and RS-T segment changes developed even when patients were observed over a considerable period. Therefore, the curves as such could not be considered diagnostic of myocardial infarction. The authors here describe a unique and intriguing group of cases of fatal myocardial infarction with electrocardiograms resembling those seen in stress tests for coronary insufficiency and showing rimlike subendocardial infarcts at postmortem.
Levine et al. (Wed,) studied this question.
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