Outcome of Patients Treated by Cardiac Resynchronization Therapy Using a Quadripolar Left Ventricular Lead

Abstract

CRT with a quadripolar LV lead was associated with an improvement of EF greater than that observed in patients receiving a bipolar LV lead. In devices with a quadripolar lead, CRT programming based on the best QRS shortening is reliable and effective. (Circ J 2016; 80: 613-618).