Cardiac resynchronization therapy (CRT) is a treatment to help your heart beat with the right rhythm. It uses a pacemaker to re-synchronize your heart’s electrical signals.
The CRT system consists of three main parts: a pacemaker, an implanted lead, and an external controller. The pacemaker sends electrical signals through the lead to the heart. The external controller is used by a doctor or nurse to control the rate of these signals and make sure they are synchronized with each other.
CRT can be used for people who have congestive heart failure, have had a recent myocardial infarction, or have had valve surgery in which one of their valves has been replaced with another valve that doesn’t synchronize well with the rest of their heart.« Back to Glossary Index