Efficacy of a single-lead unipolar transvenous defibrillator compared with a system employing an additional coronary sinus electrode. A prospective, randomized study.

Abstract

A unipolar transvenous biphasic defibrillation system is an effective means of treating ventricular fibrillation. The added complexity of additional leads is not offset by any significant improvement in defibrillation efficacy or energy requirements. Given the simplicity and effectiveness of a single-lead system coupled with a small generator, placement of defibrillation systems may now approach the ease of pacemaker implantation.