m fairly certain that in almost all the QRS pauses I see a preceding P
wave, just no QRS waves following the P
wave. This would indicate that the SA node fired the atria properly but for some reason this did not go through the AV node to fire the ventricles, hence the missing QRS wave a.k.a. pause. I'm basing this on the obvious missing QRS waves, or pause in the ventricular beat following what appears to be a P wave.
Or, this could be due to the junky EKG machine you're using.