What is Cardiac Resynchronization Therapy (CRT-D)?

Cardiac resynchronization therapy is a procedure in which a device is implanted in your chest to help your heart’s chambers squeeze (contract) more efficiently and in a more organized way.

A biventricular pacemaker (also known as a cardiac resynchronization device) delivers electrical signals to both lower chambers of the heart after cardiac resynchronization therapy (CRT). The signals cause your ventricles to contract in a more coordinated manner, resulting in better blood pumping out of your heart.

CRT therapy means you will have the pacemaker placed under your skin by minor surgery. Wires from the device are connected to the ventricles on both sides of your heart. The CRT device sends electrical signals to the ventricles to make them pump together the way they should. This type of electrical stimulation is called biventricular pacing.

If your heart rhythm is dangerously unpredictable, the device may also include an implantable cardioverter-defibrillator (ICD), which can give an electrical shock to reset your heartbeat.

Cardiac resynchronization therapy devices include:

• Cardiac resynchronization therapy with a pacemaker (CRT-P): The pacemaker for cardiac resynchronization therapy comprises three leads that link to the right upper chamber (right atria) and both lower chambers of your heart (ventricles).
• Cardiac resynchronization therapy with a pacemaker and an ICD (CRT-D) : People with heart failure who are also at risk of sudden cardiac death may benefit from this device. It can identify problematic heart rhythms and provide a more powerful energy shock than a pacemaker can, which can reset your heartbeat.

When is Cardiac Catheterization Required?

Cardiac resynchronization therapy is a treatment for heart failure in patients who have uncoordinated ventricular contractions.

Your heart muscle is weakened with heart failure, and it may not be able to pump enough blood to support your body. This can be exacerbated if the chambers of your heart aren’t in rhythm with one another.

Cardiac resynchronization treatment can help you manage your heart failure symptoms and reduce your risk of consequences, including death.

How is Cardiac Resynchronization Therapy Done?

What is the Recovery after Cardiac Resynchronization Therapy like?

After cardiac resynchronization therapy, you’ll spend 1-2 nights in the hospital. Before you leave the hospital, your doctor will test your device to ensure that it is properly programmed. After a few days, most people can resume their normal activities.

It is critical that you follow your doctor’s instructions to the letter. For the first six weeks, you may need to minimize activities including lifting, straining, and stretching. Inquire with your doctor about when you can resume specific activities.

Make sure your doctor checks the device’s functionality on a regular basis. At least once every six months, this should be done.

What Results Can I Expect from Cardiac Resynchronization Therapy?

In around 7 out of 10 cases of heart failure, cardiac resynchronization therapy is effective. CRT does not work for everyone with heart failure. If you have advanced heart failure, for example, you are less likely to react to CRT. If you have mild to moderate heart failure, CRT may help you live longer, improve your heart function, and enhance your quality of life.