CRT device implantation
Twenty-six patients (81%) received a CRT defibrillator; all others received a CRT pacemaker. The devices were produced by one of two manufacturers: Abbott (20, 62%) or Boston Scientific (12, 38%). The quadripolar LV lead was placed transvenously in a coronary vein overlying the LV free wall: 14 (44%) in a lateral vein and 18 (56%) in a posterolateral vein.