Cardiac Resynchronization Therapy with Defibrillator (CRT-D) Implantation

Meaning:
Cardiac Resynchronization Therapy with Defibrillator (CRT-D) is an advanced device-based treatment for patients with heart failure and abnormal electrical activation of the heart. The device improves coordination between the heart’s chambers while also providing protection against life-threatening ventricular arrhythmias.

Causes:
CRT-D is recommended for patients with heart failure, reduced pumping function, and electrical conduction delays such as bundle branch block. These conditions can cause inefficient heart contractions, worsening heart failure symptoms, and increased risk of sudden cardiac death.

Treatments:
The procedure involves implanting a specialized device with leads placed in specific areas of the heart to synchronize ventricular contractions. The defibrillator component continuously monitors heart rhythm and delivers life-saving therapy if dangerous arrhythmias occur.

Prevention:
Early diagnosis and optimal medical management of heart failure help slow disease progression. In eligible patients, timely CRT-D implantation improves heart function, reduces hospitalizations, and lowers the risk of sudden cardiac death.