II and III. 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.

Sinus bradycardia occurs on an ECG when there is a normal upright P wave in lead II ― sinus P wave ― preceding every QRS complex with a ventricular rate of less than 60 beats per minute.

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 ...

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Kardia 12L performed comparably to the standard 12-lead ECG in detecting major morphology-related abnormalities. "AliveCor's Kardia 12L ECG System was born from our vision to leverage AI and ...

They are characterized by premature, wider-than-normal ... Figure 2: An ECG obtained from a beagle dog 21 days later, showing six rhythm strips simultaneously (leads I, II, III, aVR, aVL and ...