Cardiac Resynchronization Therapy (CRT) is a treatment for heart failure involving the implantation of a device that coordinates the heart's contractions. It utilizes a pacemaker-like device with leads placed in the heart's chambers, synchronizing the heart's rhythm to improve its pumping efficiency. CRT aims to optimize heart function, particularly in patients with heart failure and electrical conduction issues. By coordinating the heart's contractions, CRT can enhance symptoms, reduce hospitalizations, and improve the quality of life for individuals with certain types of heart failure.