An example of apparently normal electrocardiogram originating from incorrect electrocardiographic acquisition in a patient with ST-segment elevation myocardial infarction

Electrocardiography (ECG) is proved to be an invaluable tool for diagnosis of ischemic heart disease for a long while. Importance of ECG in acute management decision makes it a crucial method that must be known in depth by every physician, and the clinicians should also be aware of the dangerous pitfalls of ECG. We present a patient with ST-segment elevation myocardial infarction in whom incorrect interpretation of an inaccurately taken ECG might have led to disastrous consequences.