Quadripolar Leads in Cardiac Resynchronization Therapy

Despite the benefit of cardiac resynchronization therapy (CRT) in patients with heart failure and conduction delay, a considerable number of patients do not respond substantially. Left ventricular lead position is an important factor in response, restricted by the patient’s specific anatomy and local pathophysiology. Quadripolar leads could enhance response to CRT, offering 4 pacing locations along the distal end of the lead. Several quadripolar...