The ability to identify an abnormality on the 12-lead ECG, suggestive of underlying cardiac disease associated with sudden cardiac death (SCD), is based on a sound working knowledge of the normal ECG ...

One can either use calculated sums of the amplitudes of QRS complexes of all 12 leads ... that the use of the ECG along these lines in the care of patients with CHF will lead to further progress.

The goal of ECG interpretation in athletes is to classify the ECG as: (1) ‘normal’—no further evaluation needed or (2) ‘abnormal’—further evaluation needed. Normal ECGs include common, ...

However, the non-invasive test is also recommended if a person has been previously diagnosed with conditions that affect normal functioning of the heart ... a standard in the doctor's office is the 12 ...

In addition to changes in the ECG caused by disease, there are a variety of atypical ECG patterns, often called 'normal variants ... syndromes should lead to improved understanding of underlying ...