2nd Degree AV blocks

The difference between the three types of 2nd degree AV blocks and the first degree AV block is that in every single type of 2nd degree AV block, the electrical activity from the atrial passing through the AV node eventually becomes completely blocked so that it...

P Wave Morphology

P waves from the same focus look the same in a given lead ( i.e. when looked at in the same lead). If P waves have different shapes in the same exact lead, they are certainly coming from different foci. The same lead is like one camera positioned at a specific angle,...