An implantable cardiac lead for use in the coronary sinus region of a heart for the treatment of congestive heart failure includes an elongated lead body having a plurality of terminals at its proximal end, an electrode assembly including a defibrillation electrode, for example, a metallic coil, and first and second pacing electrodes, the first pacing electrode being an electrode at or adjacent to the tip of the lead spaced from the defibrillation electrode and adjacent the apex of the left ventricle of the heart, the second pacing electrode including a ring electrode spaced proximally from the defibrillation electrode and adjacent the basal region of the left ventricle of the heart, and a plurality of conductors connecting each electrode to a respective one of the terminals at the proximal end of the lead body.