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P-wave, PR interval, PR segment: physiology, criteria & ECG findings

…display higher amplitude in lead II and lead V1. Such a P wave is called P pulmonale because pulmonary disease is the most common cause…

The Cardiac Electrical Axis: ECG Criteria, Definition, Clinical Implications

…cardiac cycle as depolarization and repolarization progress [3]. The mean electrical axis is typically calculated for ventricular activation in the frontal plane using the hexaxial…

The Cabrera format of the 12-lead ECG and inverted lead aVR

…limb leads in the frontal plane. This format of displaying the ECG leads is referred to as the Cabrera format and it has been the…

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