This ECG is classic for 3rd degree heart block (a.k.a. complete heart block). For a complete review of 3rd degree AV block, click the "3rd Degree AV Block Review" button below.

Researchers from Tsinghua University and Beijing Tsinghua Changgung Hospital have developed a revolutionary model, ECG-LM, ...

For a detalied review, click the Posterior MI ECG Review button below. Note that the causes of a R wave being larger than the S wave in lead V1 include a posterior myocardial infarction ...