Methods: Of 668 consecutive patients with symptomatic type II second- or third-degree AV block, 2:1 AV block, atrial fibrillation, and bradyarrhythmia, 108 patients (62 patients enrolled ...

The site of AV block was diagnosed by surface electrocardiography (Table I). [6–10] The level of AV block was compared between those who had drug-induced AV block (108 patients) and those who ...