An official website of the United States government
Here’s how you know
Official websites use .gov A
.gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A
lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
A conduction disorder, also known as heart block, is a problem with the electrical system that controls your heart’s rate and rhythm. Learn about the causes, symptoms, and treatments for conduction ...