Glossary/Arrhythmia

Heart Block.

A delay or complete interruption in the electrical signals traveling from the atria to the ventricles. Classified as first, second, or third degree. Third-degree (complete) heart block usually requires a permanent pacemaker.

Definition

What is heart block?

A delay or complete interruption in the electrical signals traveling from the atria to the ventricles. Classified as first, second, or third degree. Third-degree (complete) heart block usually requires a permanent pacemaker.

Related Terms

Related glossary terms.

Pacemaker
A small battery-powered device implanted under the skin that sends electrical impulses to the hea...
Bradycardia
An abnormally slow heart rate, typically below 60 beats per minute. Can cause dizziness, fatigue,...
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