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 ...

The six precordial leads are called leads V1, V2, V3, V4, V5 and V6. Below is a normal 12-lead ECG tracing. The different parts of the ECG will be described in the following sections. A normal ECG ...

QRS complex and T wave in lead I. Predominantly upward P wave, QRS complex and T wave in aVR. This is opposite of what is seen in a normal ECG. The above findings are similar to that seen in a ...

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, ...

As noted above, the precordial leads are unreliable, compromising by their inclusion calculations deriving from the set of 12 ECG leads. It appears, therefore, that using sums of data from the six ...

She returns for a follow-up visit for palpitations, and a 12-lead ECG is obtained. The rhythm is regular, at a rate of 150 beats/min. The QRS complex duration is normal (0.08 sec) with normal ...

The analysis found that compared with the normal aging group ... Answering this could lead to valuable treatments since some ECG issues can be fixed." Testai was not involved in the study.