Key Points High-Grade AV Block Overview: High-grade AV block, also known as advanced AV block, is a severe form of 2nd degree AV block where multiple P waves fail to…
A 49-year-old man presents to the emergency department after an episode of syncope. The following ECG is obtained:
A 78-year-old woman presents to the emergency department after an episode of syncope. The following ECG is obtained: