[Myocardial infarct without classical Q-waves in the ECG].

In this article the ECG pattern of myocardial infarction not associated with the commonly seen pathologic Q waves (greater than 0.03 s) or QS waves is discussed. In a short introduction the differential diagnosis of pathologic Q or QS waves is recalled. Thereafter, the authors insist on their experience, that the diagnosis of infarction should generally be based on the combination of RIsk factors, THOracic pain, a pathologic ECg and elevated cardiac ENzymes. Therefore, the diagnosis of a myocardial infarction should be made only, if it is 'RITHOCGENE' (abbreviation of the above-mentioned combination). The typical or possible 'non-Q-wave infarction' ECG patterns are listed, including a normal ECG.