First-degree ventricular (heart) block affects the electrical signal that makes the heart beat. It causes a delay in a portion of the heart beat and may lead to a slow heart beat. Healthcare ...

There are three types of second degree heart block, also called atrioventricular (AV) block. In type I the signal sometimes does not reach the ventricles, causing skipped beats. It is often benign and ...

Also known as complete heart block, third-degree heart block is the most serious type of heart block. Considered a medical emergency, it can be fatal without prompt treatment. The steady beating of ...

First-degree heart block is the mildest type and often requires no treatment. Third-degree heart block is the most severe and often needs a pacemaker to regulate the heartbeat. Many different causes ...

COMPLETE heart block, with slow, regular ventricular beats, usually gives rise to a systolic murmur. 1–4 Generally, this murmur is thought to result from the large stroke volume, which produces rapid ...

THE presence of complete heart block in the pediatric age group has been known for many years. 1 A sizable number of publications, consisting mostly of reports of a small number of cases, indicates ...