A first-degree atrioventricular node block occurs when conduction through the AV node is slowed, thereby delaying the time it takes for the action potential to travel from the sinoatrial node ...

2:1 AV block is a form of second degree AV nodal block and occurs when every other P wave is not conducted through the AV node to get to the ventricles and thus every other P wave is NOT followed ...

The level of AV block (AV-nodal or infranodal) was defined according to electrocardiographic characteristics. Results:The most frequent culprit medications were β-blockers followed by digoxin.

of patients with AV block caused by drugs had blocks at the level of the AV node. In addition, infranodal block was revealed in only 14% (eight of 57) of them. Thus, one could suggest that if the ...