What is CRT/CRT-D Implantation?
Cardiac resynchronization therapy places an additional left-ventricular lead, usually via the coronary sinus, so both ventricles can be paced together in selected heart-failure patients with electrical dyssynchrony. A right-ventricular lead, often an atrial lead and a coronary-sinus LV lead are placed and connected to a CRT generator. LV-lead position is chosen for electrical delay and stability.





