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  • Title: Q and non-Q wave myocardial infarctions.
    Author: Keller KB, Lemberg L.
    Journal: Am J Crit Care; 1994 Mar; 3(2):158-61. PubMed ID: 8167777.
    Abstract:
    Previously, the classification of MI into transmural and subendocardial types has been based on the presence or absence of abnormal Q waves. The pathologic anatomy of necrosis in MI does not necessarily correspond to these ECG criteria. Thus, it is more appropriate to describe myocardial infarcts as Q wave or non-Q wave infarcts. The importance of this classification is underscored by their clinical and pathologic differences and the tendency for more serious prognosis in the non-Q wave infarcts. It should be noted that in Q wave infarcts the volume of necrosis is usually greater than that in non-Q wave infarcts.
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