As Figure 1 shows, this patient has long-standing 1° AV block -- dating back to 1949. As shown in the diagram in Figure 2, the impulse from the atrium turns around in the AV junction due to dual AV ...

In the lower tracing (lead II), P1 is conducted. P2 is blocked; in other words, this patient's AV node cannot conduct at the R1P2 interval. P3 was going to be conducted. How do I know that? This ...

This is a classic example of AV nodal blocks that can occur with inferior wall myocardial infarctions. There are two mechanisms behind this phenomenon. An inferior wall MI results in vagal stimulation ...

Mobitz type I, also known as the Wenckebach block, is a subtype of second-degree atrioventricular (AV) block. Mobitz type I is a type of conduction disorder, which happens when the electrical signals ...

In patients with atrioventricular septal defect (AVSD), the occurrence of nonsurgical AV block has been reported. We have looked for an explanation in the development of the AV conduction system.