In second-degree type II AV nodal block (a.k.a. Mobitz Type II AV block ... three consecutive P waves may be followed by a QRS complex, giving the ECG a normal appearance, then the fourth ...

This ECG has both second degree AV block with 2:1 block and second degree type I AV block. Note that intermittent P waves conduct to the ventricles on this ECG tracing, however it is clear that ...

Healthcare providers categorize second-degree heart block subtypes—Mobitz type 1 and type 2—based on their physical signs on an electrocardiogram (ECG), which records the electrical activity ...

The large variety of ECG patterns seen with vagal AV block depends on ... These mechanisms simulate type II second-degree AV nodal block. The clue to the diagnosis of AV nodal block is the presence of ...