Cardiac resynchronization therapy

Cardiac Resynchronization Therapy (kahr-dee-ak ree-sin-kroh-nuh-zay-shun ther-uh-pee) is a treatment for heart failure that involves the use of a special type of pacemaker known as a biventricular pacemaker. The term originates from the Latin cardiacus meaning "of the heart", and the Greek syn meaning "together" and chronos meaning "time".

Overview

Cardiac Resynchronization Therapy (CRT), also known as biventricular pacing, is a treatment for heart failure in patients who have an abnormality in the electrical system of the heart, known as ventricular dyssynchrony. This therapy involves the use of a special type of pacemaker that can pace both the left and right ventricles of the heart simultaneously, helping them to contract at the same time. This can improve the efficiency of the heart and reduce symptoms of heart failure.

Procedure

The procedure for implanting a CRT device is similar to that for a standard pacemaker. The device is implanted under the skin in the chest, and leads (wires) are threaded through veins into the heart. The leads are then connected to the device, which sends electrical impulses to the heart to help it beat in a more synchronized manner.

Benefits and Risks

CRT can significantly improve symptoms of heart failure, such as fatigue and shortness of breath, and can improve survival in some patients. However, as with any medical procedure, there are potential risks, including infection, bleeding, and complications related to the device or leads.