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 ...

Unlike first-degree AV nodal block, a 1:1 P-wave-to-QRS-complex ratio is not maintained. Second-degree type I AV block is specifically characterized by an increasing delay of AV nodal conduction ...

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 ...

Patients who had symptomatic (fatigue, faintness, dyspnea, and syncope) type II second- or third-degree AV block, 2:1 AV block ... by routine electrocardiogram (ECG) that was obtained twice ...