Abstract
Introduction: Biventricular pacing(BVP) has been shown to improve the hemodynamic and clinical status of patients with severe heart failure(HF). To pace the left ventricle(LV), the leads are being placed in variable epicardial locations in one of the veins of the coronary sinus (CS). We studied our patients who showed clinical improvement with BVP and compared the site of LV pacing lead implantation to the width of QRS.
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