The axis of the ECG is the major direction of the overall ... To determine the QRS axis, the limb leads (not the precordial leads) need to be examined. The depiction of the standard leads and ...

Objective: Precordial ECGs ... the six limb leads can be derived from leads 1 and 2. The purpose of this study was to evaluate whether the 12-lead ECG could be substituted by ECG sets with a ...

The standard ECG has 12 leads. Six of the leads are considered “limb leads” because they are placed on the arms and/or legs of the individual. The other six leads are considered “precordial ...

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 ...

IRBBB may be seen in patients with arrhythmogenic RV cardiomyopathy (ARVC).21 However, in ARVC, the IRBBB pattern is usually associated with other ECG abnormalities, such as T wave inversion involving ...