2:1 AV block is a form of second degree AV nodal block and occurs when every other P wave is not conducted ... Below is an image from a different ECG demonstrating 2:1 AV nodal block: 2:1 AV ...

The above developments will contribute to our understanding of pathways for some of the observed associations between different ECG markers and ... such a intervals of P wave, PR, terminal ...

These ECG voltage attenuations are of extracardiac mechanism, and impact the amplitude of QRS complexes, P-waves, and T-waves, occasionally resulting also in shortening of the QRS complex and QT ...