What does CRT-D stand for?

What does CRT-D stand for?

• A. Cardiac resynchronization therapy with defibrillator
• B. Implantable cardioverter-defibrillator
• C. Left ventricular assist device
• D. Artificial heart

Answer: (A)

CRT-D stands for Cardiac Resynchronization Therapy with Defibrillator. The CRT part refers to biventricular pacing that coordinates the timing of the right and left ventricles, improving the heart’s pumping in patients with heart failure and electrical dyssynchrony. The Defibrillator part means the device includes an implantable cardioverter-defibrillator that monitors rhythm and can deliver a shock or anti-tachy pacing to terminate life-threatening arrhythmias. This combination provides both resynchronization and protection from sudden cardiac death. The other options describe different devices—an ICD alone, a left ventricular assist device, or an artificial heart—which do not include the resynchronization component.

CRT-D stands for Cardiac Resynchronization Therapy with Defibrillator. The CRT part refers to biventricular pacing that coordinates the timing of the right and left ventricles, improving the heart’s pumping in patients with heart failure and electrical dyssynchrony. The Defibrillator part means the device includes an implantable cardioverter-defibrillator that monitors rhythm and can deliver a shock or anti-tachy pacing to terminate life-threatening arrhythmias. This combination provides both resynchronization and protection from sudden cardiac death. The other options describe different devices—an ICD alone, a left ventricular assist device, or an artificial heart—which do not include the resynchronization component.