CRT–D Implant (Cardiac Resynchronization Therapy)

CRT-D Implant (Cardiac Resynchronization Therapy)

The CRT-D procedure involves implanting a device in your chest that helps to normalize your heartbeats, monitors the health of your heart, and enables your doctor to prescribe the best course of action for you. A CRT-D procedure is often referred to as a defibrillator for cardiac resynchronization therapy.

What is Cardiac Resynchronization Therapy?

Cardiac resynchronization therapy (CRT) is used to maintain consistent heartbeat and rhythm. It uses a pacemaker to restore the regular pattern of the heartbeat and is also referred to as biventricular pacing. Patients with severe symptoms that are resistant to medical treatment have seen improvements in their overall quality of life and heart failure symptoms.

What is a CRT-D Device?

This device is a combination of two components:

Pulse generator (device)
Insulated wires (leads)

These wires deliver small electrical currents to the heart, helping both ventricles pump more effectively.

Types of CRT Devices:

CRT-P: A pacemaker (biventricular pacemaker)
CRT-D: A defibrillator that includes an implantable cardioverter-defibrillator (ICD) to shock the heart when it beats too fast

How does CRT-D Work?

CRT-D is used for heart failure or patients at risk of sudden cardiac death. It functions like a pacemaker by transmitting electrical currents to both ventricles to aid synchronized contraction. If it detects dangerously fast heart rhythms, it delivers a shock (defibrillation) to correct the rhythm.

Procedure

What Happens After CRT-D Implantation?

You’ll spend 1–2 days in the hospital.
Follow wound care instructions from your doctor.
Limited arm movement for a few weeks.
A small bulge may be visible under the skin.

Benefits of Having a CRT-D Device

Prevents sudden cardiac death by detecting and correcting fatal rhythms
Reduces hospital stays
Improves quality of life
Alleviates fatigue and breathlessness
Increases energy levels

Risks Associated with CRT-D Implantation

Infection
Bleeding or clotting
Collapsed lung (pneumothorax)
Fluid buildup around the heart (cardiac tamponade)
Heart damage
Device failure or repositioning
Skin erosion at implant site
Punctured veins or lungs

Suggestion

CRT-D Implantation Procedure:

Performed while you're awake with a tranquilizer and local anesthetic.
Insulated wires are inserted through a vein near the collarbone.
Wires are guided to the heart and connected to a pulse generator placed under the skin.

The Most Important Frequently Asked Questions

Q: Can a patient get an MRI with the implantable device?
A: Yes, MRI is possible after device implantation.

Q: How will this device impact daily life?
A: Most daily activities can resume post-recovery. Avoid high-impact actions initially.

Q: How active can a person be after this device?
A: Many return to preferred activities, except rough contact sports.

Q: Is it safe to use household items after the device?
A: Yes, properly functioning appliances like microwaves and electric blankets are safe.

Q: Can magnets affect the device?
A: Yes, keep magnet-containing items at least six inches away.

Q: Can a patient travel with this device?
A: Yes, and they’ll be provided a Device ID card for emergencies and travel alerts.