An Electrocardiographic Clue for Pseudo-myocardial Infarction Due to Arterial Pulse-tapping Artifact: Aslanger's Sign.

Many factors and technical problems may alter the interpretation of electrocardiograms (ECGs). Infrequently, an artifact is considered to be the cause of ST-segment elevation, especially in asymptomatic patients. An important difference between true ST-segment elevation attributable to myocardial infarction and an artifact is that the baseline elevation in an artifact may begin before or after the onset of the QRS complex.